#+TITLE: FreedomBone
#+AUTHOR: Bob Mottram
#+EMAIL: bob@robotics.uk.to
#+KEYWORDS: freedombox, debian, beaglebone, friendica, email, web server, home server, internet, censorship, surveillance, social network, irc, jabber, chat
#+DESCRIPTION: Turn the Beaglebone Black into a personal communications server
#+OPTIONS: ^:nil
#+STYLE:
#+BEGIN_CENTER
*How to turn the Beaglebone Black into a FreedomBox-like personal communications server*
#+END_CENTER
#+CAPTION: BeagleBone Black
#+ATTR_HTML: :alt BeagleBone Black image :align center
[[[[./images/freedombone.jpg]]]]
#+BEGIN_CENTER
Copyright (C) 2014 Bob Mottram
Permission is granted to copy, distribute and/or modify this document under the terms of the [[https://gnu.org/licenses/fdl.html][GNU Free Documentation License]], Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Source for this web site in [[https://en.wikipedia.org/wiki/Org-mode][Emacs org-mode]] format is available [[/beaglebone.txt][here]]. Comments or patches may be submitted via [[https://github.com/fuzzgun/freedombone][Github]].
#+END_CENTER
* Introduction
#+BEGIN_VERSE
/If you look at it from an engineering perspective, an iterative perspective, it’s clear that you have to try something rather than do nothing./
-- Edward J. Snowden
#+END_VERSE
** What is FreedomBone?
Today many of us rely upon "free" services in the cloud, such as Gmail, Facebook, Google+ and so on. It might appear that these services are indispensible infrastructure of the modern internet, but actually they're not strictly needed and the amount of value which they deliver to the average internet user is very marginal. It is possible to be a citizen of the internet and yet not use those things - to disintermediate the most well known companies and cut out their prurient or merely cringeworthy business models.
FreedomBone is a personal home communications server based upon the BeagleBone Black hardware. It's small and cheap and will allow you to use email, have your own web site and do social networking in a federated way without needing to rely upon any intermediary companies other than your ISP.
** Do I need any prior knowledge?
In these instructions only a minimal level of familiarity with Linux is assumed. It's assumed that you know the basics of the /nano/ and /emacs/ editors, but it would be simple to also use other editors if you prefer.
** Why should I do this?
You should consider doing this if you are a freedom-oriented sort of person and you want to maintain sovereignty over your information. Laws in many places in the world consider you to have relinquished any property rights over data which you put onto a server not owned by youself (i.e. owned by a third party, such as Google or Facebook).
If you don't like the idea of having all your communications intercepted and investigated by the Surveillance State then you should consider running a FreedomBone. If your profession involves maintaining confidentiality as an essential feature, such as legal or medical services, counselling, teaching or any sort of activism then you should consider running a FreedomBone.
As Eben Moglen noted in his now famous [[https://www.youtube.com/watch?v=QOEMv0S8AcA]["Freedom in The Cloud"]] talk the simple fact of you keeping your own internet logs (found in the /var/log directory) puts a certain amount of power in your hands and takes it away from parties who would otherwise sell that information without your knowledge or permission to advertisers or other shady outfits who may not have your best interests at heart.
** After it's installed will it need a lot of maintenance?
So long as the hardware is ok the amount of maintenance needed should be very small. Unlike on Windows based systems you don't need to defragment drives or mess about with anti-virus programs. I ran a similar Sheevaplug system between 2010 and 2013 with only occasional software updates or reboots, and uptime was probably 99% or better.
** Is it secure?
Nothing is totally secure or infallible. You could have the most secure technology and yet still use easy to guess passwords. This system will not defend you from an attacker who is actively trying to block or corrupt your communications, but I assume that doesn't apply in the majority of cases. Another thing to be aware of is that running a FreedomBone could make you more vulnerable to traffic analysis, since the server is associated with your home address and isn't a giant aggregation of users somewhere in the cloud. You need to weigh this alongside the additional legal protection which owning the server and having it in your own home gives you.
FreedomBone should be far more secure than using popular cloud-based services which have spying built into them as a core feature (although not one which is typically advertised), but it is not necessarily an impenetrable information fortress. This project is at least as much about achieving communications independence as it is about being able to do that securely.
** Will running a server all the time affect my electricity bill?
Hardly at all. The BeagleBone Black consumes very little power - less than 5W. It would even be potentially possible to run it from a solar panel.
** Can I use a Raspberry Pi or Cubieboard instead?
These instructions are not highly specific to the Beaglebone Black and so will likely also work on other single board computers (SBCs) such as the [[https://en.wikipedia.org/wiki/Raspberry_pi][Raspberry Pi]] or [[https://en.wikipedia.org/wiki/Cubieboard][Cubieboard]]. The original Raspberry Pi only had 256MB of RAM and so the performance of some services may be more limited. The Beaglebone Black was chosen mainly because of its low cost, relatively good CPU performance for the price (by the standards of 2013) and also low electricity consumption. The Cubieboard is also another good alternative, with the A20 version having similar specifications but twice as much RAM as the BeagleBone Black.
** Why should I trust the packages or source code downloaded from this site?
If you're particularly security conscious then you shouldn't. Binary or source packages have only been included here for convenience and to avoid confusion. "/Go and find a Debian installation for the BeagleBone Black somewhere on the web/" is too vague an instruction for my liking, and I've attempted to keep things as concise and unambiguous as possible - particularly with an average or new Linux user in mind.
However, for maximum security for those software systems which are not already packaged within the Debian repositories then seek out the original sources and verify the hashes independently.
It's worth adopting an attitude of "/trust but verify/". Don't let fear of mass surveillance and [[https://www.techdirt.com/articles/20140207/08354426130/gchq-has-entire-program-dirty-tricks-including-honeypots-using-journalists-deleting-online-accounts.shtml]["dirty tricks"]] paralyse you into trusting nothing and consequently doing nothing. Doing nothing means they win.
* Inventory
#+BEGIN_VERSE
/You can’t help someone just by making a wish to do so, you have to take action./
-- Dalai Lama
#+END_VERSE
These instructions assume that you have the following ingredients.
** A BeagleBone Black (BBB)
It should come with a suitable USB cable for the initial setup. To make things look nicer you may also want to get a case for it.
** An internet connection
It is assumed that the most common situation is via a router installed at home. The router should have ethernet sockets on it and a web interface which allows you to forward ports (sometimes under the "firewall" settings), so that you can forward ssh and web traffic to the BBB.
** microSD card
To use as the main storage for the BBB. 16 or 32GB is fine, and can be obtained quite cheaply. Try to use Sandisk (class 10 or better) where possible and avoid cheaper cards which often have poor performance.
You may also need an SD card adaptor or USB card reader in order to flash the operating image to the microSD card. For instance, many laptops have an SD card slot but not a microSD slot.
** 5V/1A power supply
With a plug suitable for powering the BBB. If you have some device with a USB socket nearby you may also be able to just use that for electrical power. However, powering from the USB cable alone might result in crashes when the system is under load, depending upon how many milliamps can be supplied by the USB hub/socket. If the system crashes due to running out of power then you will see that the LEDs on the BBB are continuously on, rather than flashing.
** An ethernet patch cable
Just an ordinary cat5 or cat6 cable that you can get from most electrical/computer stores.
* Installing Debian onto the microSD card
The Debian Linux OS will be installed onto a small flash drive. It's a good idea to do this rather than using the internal flash, because it will allow you to easily create backups of the entire system if necessary using the dd command.
Download the image.
#+BEGIN_SRC: bash
cd ~/
wget http://freedombone.uk.to/debian-7.2-console-armhf-2013-11-15.tar.xz
#+END_SRC
Verify it.
#+BEGIN_SRC: bash
sha256sum debian-7.2-console-armhf-2013-11-15.tar.xz
262ea96d6bff530ad545e001eb2aa50b26a999c02f0c0e2e5f8536edf21c973a debian-7.2-console-armhf-2013-11-15.tar.xz
#+END_SRC
Uncompress it.
#+BEGIN_SRC: bash
tar xJf debian-7.2-console-armhf-2013-11-15.tar.xz
cd debian-7.2-console-armhf-2013-11-15
#+END_SRC
Create the disk image, where sdX is the name of the flash drive (probably it will be sdb or sdc).
#+BEGIN_SRC: bash
sudo apt-get install u-boot-tools
sudo ./setup_sdcard.sh --mmc /dev/sdX --uboot bone --swap-file 1024
#+END_SRC
Once completed then safely remove the microSD card via your file manager (usually right click and "safely remove" or "eject").
* Setup
#+BEGIN_VERSE
/Build the tools for a future you would want to live in/
-- Kurt Opsahl
#+END_VERSE
** Things to be aware of
*** A note on ssh
When using ssh to log into the BBB if you get warnings of the type "/the ECDSA host key for domain differs from the key for the IP address/" then run the command:
#+BEGIN_SRC: bash
ssh-keygen -R
#+END_SRC
*** Passwords
It's highly recommended that you use a password manager, such as KeepassX, and make all your passwords long random strings. It's also a good idea to use different passwords for different pieces of software, instead of one or two passwords for the whole system. That compartmentalises the security such that even if an attacker gains access to one system they can't necessarily get access to others.
*** HTTPS
Throughout these instructions self signed SSL certificates are used to implement access to web pages via HTTPS. The whole HTTPS security model upon which much of the internet currently rests seems broken in that it usually depends upon "trusted certificate authorities" who are not really trusted, except perhaps by the maintainers of certain web browser software. So all that HTTPS really guarantees is that you have an encrypted connection, but an encrypted connection /to who/ can be subject to doubt. As was seen in 2013 with the [[https://www.schneier.com/essay-455.html][information coming from Edward Snowden]], and also the [[http://en.wikipedia.org/wiki/Lavabit][Lavabit email service]], it's possible for companies/organisations to be compromised or bribed and SSL private keys for all users can be demanded using gagging orders or secret laws without any individual user ever being able to know that their communications is no longer secure..
Not knowing who you're really connecting to is especially true for self-signed certificates, so it is in principle possible that when logging into a site with a username and password a system such as [[http://arstechnica.com/tech-policy/2013/11/uk-spies-continue-quantum-insert-attack-via-linkedin-slashdot-pages/][Quantum Insert]], or a compromised [[http://en.wikipedia.org/wiki/Domain_Name_System][DNS service]], could be used to direct the user to a fake copy of the login screen for the purposes of obtaining their login details. While this doesn't seem to be a major problem at the time of writing it's something to keep in mind. So if you can't log in or if you log in and what you see doesn't look like your site then it's possible that such a compromise could have taken place. Using a password manager with different login details for each site is one way to ensure that if one system is compromised then the attacker can't necessarily get access to all your other stuff.
** Initial
Plug the microSD card into the BBB and Connect the USB cable to your laptop/desktop, then login via ssh.
#+BEGIN_SRC: bash
ssh debian@192.168.7.2
#+END_SRC
The default password is /temppwd/
Then log in as root:
#+BEGIN_SRC: bash
su
#+END_SRC
The default password is /root/
The first thing to do is to change the passwords from their defaults.
#+BEGIN_SRC: bash
passwd
#+END_SRC
Then you will need to change the network interfaces. The main task here is to comment out the stuff related to usb0. That will enable you to plug the BBB into the back of a router and for it to be detectable on the network.
#+BEGIN_SRC: bash
nano /etc/network/interfaces
#+END_SRC
The resulting interfaces file should look like this:
#+BEGIN_SRC: bash
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet static
address 192.168.1.60
netmask 255.255.255.0
gateway 192.168.1.254
dns-nameservers 213.73.91.35 85.214.20.141
# Example to keep MAC address between reboots
#hwaddress ether DA:AD:CE:EF:CA:FE
# WiFi Example
#auto wlan0
#iface wlan0 inet dhcp
# wpa-ssid "essid"
# wpa-psk "password"
# Ethernet/RNDIS gadget (g_ether)
# ... or on host side, usbnet and random hwaddr
# Note on some boards, usb0 is automaticly setup with an init script
# in that case, to completely disable remove file [run_boot-scripts] from the boot partition
#iface usb0 inet static
# address 192.168.7.2
# netmask 255.255.255.0
# network 192.168.7.0
# gateway 192.168.7.1
#+END_SRC
CTRL-O followed by ENTER to save, then CTRL-X to exit.
In the above example "address 192.168.1.60" is a static IP address for the BBB, which will allow incoming network traffic to be directed from the router in a reliable manner. It should be outside of the DHCP range set up on the router.
"gateway 192.168.1.254" should be the IP address of the router.
Note that setting the DNS servers with dns-nameservers is important because some home routers do not allow you to change the DNS settings.
Edit resolv.conf.
#+BEGIN_SRC: bash
nano /etc/resolv.conf
#+END_SRC
It should look something like the following:
#+BEGIN_SRC: bash
domain localdomain
search localdomain
nameserver 213.73.91.35
nameserver 85.214.20.141
#+END_SRC
CTRL-O followed by ENTER to save, then CTRL-X to exit.
Now disconnect the BBB from your computer and plug it into the router. You'll need an ethernet patch cable and you may also need a 5V/1A power supply for the BBB.
If you go to the web administration screen for your internet router (often it's on 192.168.2.1 or 192.168.1.254) then after a few minutes you should see the BBB appear on the network. It's name will be "arm".
** Add a user
Ssh back in to the BBB and login as root. In this example the BBB's IP address is 192.168.1.60.
#+BEGIN_SRC: bash
ssh-keygen -f "/home/myusername/.ssh/known_hosts" -R 192.168.1.60
ssh debian@192.168.1.60
su
#+END_SRC
Then make a new user. It's a bad idea to add users to the sudo group, because that then means that an attacker potentially only needs to know one password in order to get administrator access to the system. With no sudoers an attacker needs to know, or be able to obtain, two separate passwords to be able to really compromise the system.
#+BEGIN_SRC: bash
adduser myusername
#+END_SRC
Exit from the ssh login by typing "exit" a couple of times, then ssh back in as the new user. Make sure you use a difficult to guess password/phrase, or ideally a randomly generated password used together with a password manager such as KeepassX.
Remove the default debian user.
#+BEGIN_SRC: bash
userdel -r debian
#+END_SRC
** Text editor
For an editor which is less erratic than vi when used within a remote console such as Terminator.
#+BEGIN_SRC: bash
apt-get update
apt-get install emacs
#+END_SRC
Some basic Emacs keys which will be useful to new users are:
| Load a file | CTRL-x CTRL-f |
| Save | CTRL-x CTRL-s |
| Exit | CTRL-x CTRL-c |
** Create a swap file
Without a swap file the system may occasionally run out of memory and crash, since the Beaglebone only has 512MB of RAM. The following commands will create a 1GB swap file:
#+BEGIN_SRC: bash
mkdir -p /var/cache/swap/
dd if=/dev/zero of=/var/cache/swap/swapfile bs=1M count=1024
chmod 600 /var/cache/swap/swapfile
mkswap /var/cache/swap/swapfile
swapon /var/cache/swap/swapfile
#+END_SRC
To tell the OS to load this swapfile on each start up.
#+BEGIN_SRC: bash
emacs /etc/fstab
#+END_SRC
Append the following line:
#+BEGIN_SRC: bash
/var/cache/swap/swapfile none swap sw 0 0
#+END_SRC
Then save and exit.
To verify that the swapfile is accessilble type /top/ and look for the line which begins with "KiB Swap". Probably there will be zero bytes used, but this might be non-zero when the system is under some load (for example getting a lot of web views or being crawled by a search engine). CTRL-C exits from the /top/ command.
** Enable backports
To enable some newer packages add backports to the repositories.
#+BEGIN_SRC: bash
echo "deb http://ftp.us.debian.org/debian wheezy-backports main" >> /etc/apt/sources.list
apt-get update
apt-get dist-upgrade
#+END_SRC
** Random number generation
#+BEGIN_VERSE
/Near as I can tell, the answer on what has been requested is everything: deliberate weakenings of encryption algorithms, deliberate weakenings of random number generations, copies of master keys, encryption of the session key with an NSA-specific key … everything./
-- Bruce Schneier, on the 2013 leaked NSA documents
#+END_VERSE
The security of encryption depends upon the randomness of the random source used on your system. If it isn't very random then it may be far more vulnerable to cryptanalysis, and it's known that in the past some dubious agencies have encouraged the use of flawed random number generators to assist with their prurient activities. Randomness - typically referred to as /entropy/ - is often gathered from factors such as the timing of key presses or mouse movements, but since the BBB won't have such devices plugged into it this reduces the amount of entropy available.
To improve entropy generation there are two options. One is to install a kernel module which enables the hardware crypto available on the BBB, but that's a bit complicated and might have some stability implications. The other option is to install [[http://www.issihosts.com/haveged/][havegd]]. While not as good as a true hardware random number generator, havegd is better than the default pseudo-random number generation within the Linux kernel. To install it:
#+BEGIN_SRC: bash
apt-get install haveged
#+END_SRC
At the time of writing there is also some hardware called [[http://beagleboard.org/project/CryptoCape/][cryptocape]] being developed, with the intention of adding extra random number generation capabilities to the BBB.
** Alter ssh configuration
Altering the ssh configuration will make it a little more secure than the standard Debian settings.
#+BEGIN_SRC: bash
emacs /etc/ssh/sshd_config
#+END_SRC
Check the following values:
#+BEGIN_SRC: bash
PermitRootLogin no
X11Forwarding no
ServerKeyBits 4096
Protocol 2
PermitEmptyPasswords no
StrictModes yes
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
Ciphers aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512,hmac-sha2-256,hmac-ripemd160
KexAlgorithms diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1
#+END_SRC
CTRL-X CTRL-S to save, then CTRL-X CTRL-C to exit.
#+BEGIN_SRC: bash
service ssh restart
#+END_SRC
To test the new settings log out by typing "exit" a couple of times, then log back in again with:
#+BEGIN_SRC: bash
ssh -vvv myusername@192.168.1.60
#+END_SRC
and check that some number of bits are set within a 4096 bit sized key:
#+BEGIN_SRC: bash
debug2: bits set: */4096
#+END_SRC
** Getting onto the web
Create a subdomain on [[http://freedns.afraid.org][freeDNS]]. You may need to click on "/subdomains/" a couple of times. FreeDNS is preferred because it is one of the few domain name providers which supports genuinely free (as in beer) accounts. So if your budget is tiny or non-existent you can still participate as a first class citizen of the internet. If you do have money to spend there is also a premium option.
Select "/dynamic DNS/" then click "/quick cron example/"
An example would look like:
#+BEGIN_SRC: bash
4,9,14,19,24,29,34,39,44,49,54,59 * * * * root sleep 29 ; /usr/bin/timeout 120 wget -O - http://free\ dns.afraid.org/dynamic/update.php?ABCKDNRCLFHENSLKNFEGSBFLFF== >> /\ tmp/freedns_mysubdomain_us_to.log 2>&1 &
#+END_SRC
Edit */etc/crontab* and append that to the end of the file.
Via your router's firewall settings you should now open port 22 (secure shell). This will allow you to ssh into your BBB from any location - not just your own local network.
The freeDNS subdomain which you just created will hereafter just be refered to as "/your domain name/".
** Set the host name
#+BEGIN_SRC: bash
emacs /etc/hostname
#+END_SRC
CTRL-x CTRL-s to save, then CTRL-x CTRL-c to exit.
Also issue the command, replacing /mydomainname.com/ with your domain name.
#+BEGIN_SRC: bash
hostname mydomainname.com
#+END_SRC
You may also need to assign the same hostname separately via your router's web interface.
#+BEGIN_SRC: bash
emacs /etc/hosts
#+END_SRC
Append the following, replacing /mydomainname.com/ with your domain name.
#+BEGIN_SRC: bash
127.0.1.1 mydomainname.com
#+END_SRC
If you then run the command:
#+BEGIN_SRC: bash
hostname -f
#+END_SRC
it should return your domain name.
** Install NTP
To synchronise time.
#+BEGIN_SRC: bash
apt-get install ntp
#+END_SRC
** Install fail2ban
#+BEGIN_SRC: bash
apt-get install fail2ban
#+END_SRC
** Set up a firewall
#+BEGIN_VERSE
/The documents, from a PowerPoint presentation prepared for a 2012 NSA conference called SIGDEV, show that the unit known as the Joint Threat Research Intelligence Group, or JTRIG, boasted of using the DDOS attack – which it dubbed Rolling Thunder/
-- NBC News article: /War on Anonymous: British Spies Attacked Hackers, Snowden Docs Show/
#+END_VERSE
A basic firewall limits the maximum rate at which connections can be made and closes any unused ports, and this helps to defend against various kinds of DDOS attack.
#+BEGIN_SRC: bash
apt-get install portsentry
emacs /etc/portsentry/portsentry.conf
#+END_SRC
Uncomment the entry for *iptables support for Linux*
Set the following properties:
#+BEGIN_SRC: bash
TCP_PORTS="1,7,9,11,15,79,109,110,111,119,138,139,512,513,514,515,540,635,1080,1524,2000,2001,4000,4001,5742,6000,6001,6667,12345,12346,20034,27665,30303,32771,32772,32773,32774,31337,40421,40425,49724,54320"
UDP_PORTS="1,7,9,66,67,68,69,111,137,138,161,162,474,513,517,518,635,640,641,666,700,2049,31335,27444,34555,32770,32771,32772,32773,32774,31337,54321"
ADVANCED_EXCLUDE_TCP="113,139,70,80,443,143,6670,993,5060,5061,25,465,22,5222,5223,5269,5280,5281,8444"
ADVANCED_EXCLUDE_UDP="520,138,137,67,70,80,443,143,6670,993, 5060,5061,25,465,22,5222,5223,5269,5280,5281,8444"
SCAN_TRIGGER="2"
BLOCK_UDP="2"
BLOCK_TCP="2"
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
service portsentry restart
emacs /tmp/firewall.sh
#+END_SRC
Enter the following:
#+BEGIN_SRC: bash
#!/bin/bash
# Enable syn cookies
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
# Other settings
echo 1 > /proc/sys/net/ipv4/tcp_keepalive_probes
echo 2 > /proc/sys/net/ipv4/tcp_synack_retries
echo 1 > /proc/sys/net/ipv4/tcp_syn_retries
# First of all delete any existing rules.
# This means you're back to a known state:
iptables -P INPUT ACCEPT
ip6tables -P INPUT ACCEPT
iptables -F
iptables -X
# Drop any IPv6 traffic
ip6tables -A INPUT -p icmp -j DROP
ip6tables -A INPUT -p tcp -j DROP
ip6tables -A INPUT -p udp -j DROP
# Drop access to unused ports
iptables -A INPUT -p tcp --destination-port 1 -j DROP
iptables -A INPUT -p tcp --destination-port 7 -j DROP
iptables -A INPUT -p tcp --destination-port 109:111 -j DROP
iptables -A INPUT -p tcp --destination-port 995 -j DROP
iptables -A INPUT -p tcp --destination-port 139 -j DROP
iptables -A INPUT -p tcp --destination-port 6000:6001 -j DROP
iptables -A INPUT -p tcp --destination-port 9 -j DROP
iptables -A INPUT -p tcp --destination-port 79 -j DROP
iptables -A INPUT -p tcp --destination-port 515 -j DROP
iptables -A INPUT -p tcp --destination-port 4001 -j DROP
iptables -A INPUT -p tcp --destination-port 1524 -j DROP
iptables -A INPUT -p tcp --destination-port 1080 -j DROP
iptables -A INPUT -p tcp --destination-port 512:514 -j DROP
iptables -A INPUT -p tcp --destination-port 31337 -j DROP
iptables -A INPUT -p tcp --destination-port 2000:2001 -j DROP
iptables -A INPUT -p tcp --destination-port 12345 -j DROP
iptables -A INPUT -p tcp --destination-port 32771:32774 -j DROP
iptables -A INPUT -p tcp --destination-port 4000 -j DROP
iptables -A INPUT -p tcp --destination-port 119 -j DROP
iptables -A INPUT -p tcp --destination-port 137 -j DROP
iptables -A INPUT -p udp --destination-port 1 -j DROP
iptables -A INPUT -p udp --destination-port 7 -j DROP
iptables -A INPUT -p udp --destination-port 109:111 -j DROP
iptables -A INPUT -p udp --destination-port 995 -j DROP
iptables -A INPUT -p udp --destination-port 139 -j DROP
iptables -A INPUT -p udp --destination-port 6000:6001 -j DROP
iptables -A INPUT -p udp --destination-port 9 -j DROP
iptables -A INPUT -p udp --destination-port 79 -j DROP
iptables -A INPUT -p udp --destination-port 515 -j DROP
iptables -A INPUT -p udp --destination-port 4001 -j DROP
iptables -A INPUT -p udp --destination-port 1524 -j DROP
iptables -A INPUT -p udp --destination-port 1080 -j DROP
iptables -A INPUT -p udp --destination-port 512:514 -j DROP
iptables -A INPUT -p udp --destination-port 31337 -j DROP
iptables -A INPUT -p udp --destination-port 2000:2001 -j DROP
iptables -A INPUT -p udp --destination-port 12345 -j DROP
iptables -A INPUT -p udp --destination-port 32771:32774 -j DROP
iptables -A INPUT -p udp --destination-port 4000 -j DROP
iptables -A INPUT -p udp --destination-port 119 -j DROP
iptables -A INPUT -p udp --destination-port 137 -j DROP
# Make sure NEW incoming tcp connections are SYN packets
iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP
# Drop packets with incoming fragments
iptables -A INPUT -f -j DROP
# Incoming malformed XMAS packets drop them
iptables -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
iptables -A INPUT -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP
iptables -A INPUT -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP
# Incoming malformed NULL packets:
iptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP
# Drop UDP to used ports
iptables -A INPUT -p udp --match multiport --dports 70,80,443,143,6670,993,5060,5061,25 -j DROP
iptables -A INPUT -p udp --match multiport --dports 465,22,5222,5223,5269,5280,5281,8444 -j DROP
# Limit ssh logins
iptables -A INPUT -p tcp --dport 22 -m limit --limit 3/minute --limit-burst 1 -j ACCEPT
# Limit web connections
iptables -A INPUT -p tcp --dport 80 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit number of XMPP connections
iptables -A INPUT -p tcp --match multiport --dports 5222:5223,5269,5280:5281 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit IRC connections
iptables -A INPUT -p tcp --dport 6666:6670 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit gopher connections
iptables -A INPUT -p tcp --dport 70 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit IMAP connections
iptables -A INPUT -p tcp --dport 143 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
iptables -A INPUT -p tcp --dport 993 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit SIP connections
iptables -A INPUT -p tcp --dport 5060:5061 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit SMTP/SMTPS connections
iptables -A INPUT -p tcp --dport 25 -m limit --limit 3/minute --limit-burst 1 -j ACCEPT
iptables -A INPUT -p tcp --dport 465 -m limit --limit 3/minute --limit-burst 1 -j ACCEPT
# Limit Bitmessage connections
iptables -A INPUT -p tcp --dport 8444 -m limit --limit 10/minute --limit-burst 1 -j ACCEPT
# Limit the number of incoming tcp connections
# Interface 0 incoming syn-flood protection
iptables -N syn_flood
iptables -A INPUT -p tcp --syn -j syn_flood
iptables -A syn_flood -m limit --limit 1/s --limit-burst 3 -j RETURN
iptables -A syn_flood -j DROP
# Limiting the incoming icmp ping request:
#iptables -A INPUT -p icmp -m limit --limit 1/s --limit-burst 1 -j ACCEPT
#iptables -A INPUT -p icmp -m limit --limit 1/s --limit-burst 1 -j LOG --log-prefix PING-DROP:
iptables -A INPUT -p icmp -j DROP
#iptables -A OUTPUT -p icmp -j ACCEPT
# Save the settings
iptables-save > /etc/firewall.conf
ip6tables-save > /etc/firewall6.conf
printf '#!/bin/sh\n' > /etc/network/if-up.d/iptables
printf 'iptables-restore < /etc/firewall.conf\n' >> /etc/network/if-up.d/iptables
printf 'ip6tables-restore < /etc/firewall6.conf\n' >> /etc/network/if-up.d/iptables
chmod +x /etc/network/if-up.d/iptables
#+END_SRC
Save and exit.
Note that this will disable IP version 6. At the time of writing it is expected that the average internet user is running on IP version 4.
#+BEGIN_SRC: bash
chmod +x /tmp/firewall.sh
. /tmp/firewall.sh
rm /tmp/firewall.sh
#+END_SRC
Also disable ping. This may be inconvenient to some extent, but it seems common for malicious systems, including but not limited to the [[http://www.nbcnews.com/news/investigations/snowden-docs-british-spies-used-sex-dirty-tricks-n23091][JTRIG "EFFECTS" team]], to try to disable the machine by flooding it with pings. These days there seems to be not much difference between "cybercrime" and nefarious state-sponsored internet activities.
#+BEGIN_SRC: bash
emacs /etc/sysctl.conf
#+END_SRC
Uncomment or change the following:
#+BEGIN_SRC: bash
net.ipv4.conf.all.accept_redirects = 0
net.ipv6.conf.all.accept_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv6.conf.all.accept_source_route = 0
net.ipv4.conf.default.rp_filter=1
net.ipv4.conf.all.rp_filter=1
net.ipv4.ip_forward=0
net.ipv6.conf.all.forwarding=0
#+END_SRC
And append the following:
#+BEGIN_SRC: bash
# ignore pings
net.ipv4.icmp_echo_ignore_all = 1
# disable ipv6
net.ipv6.conf.all.disable_ipv6 = 1
#+END_SRC
Save and exit. It may be a good idea to reboot at this point and then log back into the BBB using ssh. You can do a safe reboot of the system by typing:
#+BEGIN_SRC: bash
reboot
#+END_SRC
** Install Email
#+BEGIN_VERSE
/If you knew what I know about email, you might not use it/
-- Ladar Levison
#+END_VERSE
Email is not very secure, but its usefulness and ubiquity mean that it's likely to continue as a primary communications method for many years to come. You can encrypt the contents of email using PGP/GPG, but very few people do that and even for those that do the metadata (the From/To/CC/BCC) is always transmitted in the clear as a fundamental aspect of the protocol, allowing an attacker to easily construct detailed models of people's social network and life patterns even without knowing the content.
Exim4 seems much easier to install and configure than Postfix.
#+BEGIN_SRC: bash
aptitude install exim4 sasl2-bin swaks libnet-ssleay-perl procmail
#+END_SRC
You will be prompted to remove postfix. Say yes and yes again.
#+BEGIN_SRC: bash
dpkg-reconfigure exim4-config
#+END_SRC
Settings as follows:
#+BEGIN_SRC: bash
internet site
System mail name: mydomainname.com
IP addresses to listen on: blank
Destinations: mydomainname.com
Domains to relay mail: blank
Smarthost Relay: 192.168.1.0/60 (the range of addresses on your LAN)
Dial on demand = no
Maildir format in home directory
Split configuration = no
Root and postmaster: root email
#+END_SRC
To test the installation:
#+BEGIN_SRC: bash
telnet 192.168.1.60 25
ehlo xxx
quit
#+END_SRC
#+BEGIN_SRC: bash
emacs /etc/default/saslauthd
#+END_SRC
set START=yes then save and exit.
#+BEGIN_SRC: bash
/etc/init.d/saslauthd start
emacs exim-gencert
#+END_SRC
#+BEGIN_SRC: bash
#!/bin/sh -e
if [ -n "$EX4DEBUG" ]; then
echo "now debugging $0 $@"
set -x
fi
DIR=/etc/exim4
CERT=$DIR/exim.crt
KEY=$DIR/exim.key
# This exim binary was built with GnuTLS which does not support dhparams
# from a file. See /usr/share/doc/exim4-base/README.Debian.gz
#DH=$DIR/exim.dhparam
if ! which openssl > /dev/null ;then
echo "$0: openssl is not installed, exiting" 1>&2
exit 1
fi
# valid for ten years
DAYS=3650
if [ "$1" != "--force" ] && [ -f $CERT ] && [ -f $KEY ]; then
echo "[*] $CERT and $KEY exists!"
echo " Use \"$0 --force\" to force generation!"
exit 0
fi
if [ "$1" = "--force" ]; then
shift
fi
#SSLEAY=/tmp/exim.ssleay.$$.cnf
SSLEAY="$(tempfile -m600 -pexi)"
cat > $SSLEAY < /dev/null
rm "$MAILDIR/cur/$f"
done
for f in `ls $MAILDIR/new`
do
spamc -L spam < "$MAILDIR/new/$f" > /dev/null
rm "$MAILDIR/new/$f"
done
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /usr/bin/filterham
#+END_SRC
Add the following contents:
#+BEGIN_SRC: bash
#!/bin/bash
USERNAME=$1
MAILDIR=/home/$USERNAME/Maildir/.learn-ham
if [ ! -d "$MAILDIR" ]; then
exit
fi
for f in `ls $MAILDIR/cur`
do
spamc -L ham < "$MAILDIR/cur/$f" > /dev/null
rm "$MAILDIR/cur/$f"
done
for f in `ls $MAILDIR/new`
do
spamc -L ham < "$MAILDIR/new/$f" > /dev/null
rm "$MAILDIR/new/$f"
done
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/crontab
#+END_SRC
Append the following, replacing *myusername* with your username.
#+BEGIN_SRC: bash
*/3 * * * * root /usr/bin/timeout 120 /usr/bin/filterspam myusername
*/3 * * * * root /usr/bin/timeout 120 /usr/bin/filterham myusername
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod 655 /usr/bin/filterspam /usr/bin/filterham
service spamassassin restart
service exim4 restart
service cron restart
#+END_SRC
** Install Dovecot
Install the required packages.
#+BEGIN_SRC: bash
aptitude -y install dovecot-common dovecot-pop3d dovecot-imapd
#+END_SRC
Edit the configuration file.
#+BEGIN_SRC: bash
emacs /etc/dovecot/dovecot.conf
#+END_SRC
Line 26: change:
#+BEGIN_SRC: bash
listen = *
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/dovecot/conf.d/10-auth.conf
#+END_SRC
Line 9: uncomment and change (allow plain text auth)
#+BEGIN_SRC: bash
disable_plaintext_auth = no
#+END_SRC
Line 99: add:
#+BEGIN_SRC: bash
auth_mechanisms = plain login
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/dovecot/conf.d/10-mail.conf
#+END_SRC
Line 30: uncomment and add:
#+BEGIN_SRC: bash
mail_location = maildir:~/Maildir:LAYOUT=fs
#+END_SRC
Save and exit, then start the dovecot service.
#+BEGIN_SRC: bash
service dovecot restart
#+END_SRC
** Create Email folders and rules
*** Rules for mailing lists
A common situation with email is that you may be subscribed to various mailing lists and want incoming email from those to be automatically grouped into a separate folder for each list.
We can make a script to make adding mailing list rules easy:
#+BEGIN_SRC: bash
emacs /usr/bin/mailinglistrule
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
#!/bin/bash
MYUSERNAME=$1
MAILINGLIST=$2
SUBJECTTAG=$3
MUTTRC=/home/$MYUSERNAME/.muttrc
PM=/home/$MYUSERNAME/.procmailrc
LISTDIR=/home/$MYUSERNAME/Maildir/$MAILINGLIST
if [ ! -d "$LISTDIR" ]; then
mkdir -m 700 $LISTDIR
mkdir -m 700 $LISTDIR/tmp
mkdir -m 700 $LISTDIR/new
mkdir -m 700 $LISTDIR/cur
fi
chown -R $MYUSERNAME:$MYUSERNAME $LISTDIR
echo "" >> $PM
echo ":0" >> $PM
echo " * ^Subject:.*()\[$SUBJECTTAG\]" >> $PM
echo "$LISTDIR/new" >> $PM
chown $MYUSERNAME:$MYUSERNAME $PM
if [ ! -f "$MUTTRC" ]; then
cp /etc/Muttrc $MUTTRC
chown $MYUSERNAME:$MYUSERNAME $MUTTRC
fi
#+END_SRC
Save and exit, then make the script executable.
#+BEGIN_SRC: bash
chmod +x /usr/bin/mailinglistrule
#+END_SRC
Now we can add a new mailing list rule with the following, where /myusername/ is your username, /mailinglistname/ is the name of the mailing list (with no spaces) and /subjecttag/ is the tag which usually appears within square brackets in the subject line of emails from the list.
#+BEGIN_SRC: bash
mailinglistrule [myusername] [mailinglistname] [subjecttag]
#+END_SRC
Repeat this command for as many mailing lists as you need. Then edit your local Mutt configuration.
#+BEGIN_SRC: bash
emacs /home/myusername/.muttrc
#+END_SRC
Search for the *mailboxes* variable and add entries for the mailing lists you just created. For example:
#+BEGIN_SRC: bash
mailboxes = =Sent =mailinglistname
#+END_SRC
Then save and exit.
*** Rules for specific email addresses
You can also make a script which will allow you to move mail from specific email addresses to a folder.
#+BEGIN_SRC: bash
emacs /usr/bin/emailrule
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
#!/bin/bash
MYUSERNAME=$1
EMAILADDRESS=$2
MAILINGLIST=$3
MUTTRC=/home/$MYUSERNAME/.muttrc
PM=/home/$MYUSERNAME/.procmailrc
LISTDIR=/home/$MYUSERNAME/Maildir/$MAILINGLIST
if [ ! -d "$LISTDIR" ]; then
mkdir -m 700 $LISTDIR
mkdir -m 700 $LISTDIR/tmp
mkdir -m 700 $LISTDIR/new
mkdir -m 700 $LISTDIR/cur
fi
chown -R $MYUSERNAME:$MYUSERNAME $LISTDIR
echo "" >> $PM
echo ":0" >> $PM
echo " * ^From: $EMAILADDRESS" >> $PM
echo "$LISTDIR/new" >> $PM
chown $MYUSERNAME:$MYUSERNAME $PM
if [ ! -f "$MUTTRC" ]; then
cp /etc/Muttrc $MUTTRC
chown $MYUSERNAME:$MYUSERNAME $MUTTRC
fi
#+END_SRC
Save and exit, then make the script executable.
#+BEGIN_SRC: bash
chmod +x /usr/bin/emailrule
#+END_SRC
Then to add a particular email address to a folder run the command:
#+BEGIN_SRC: bash
emailrule [myusername] [emailaddress] [foldername]
#+END_SRC
If you want any mail from the given email address to be deleted then set the /foldername/ to /Trash/.
To ensure that the folder appears within Mutt.
#+BEGIN_SRC: bash
emacs /home/myusername/.muttrc
#+END_SRC
Search for the *mailboxes* variable and add entries for the mailing lists you just created. For example:
#+BEGIN_SRC: bash
mailboxes = =Sent =foldername
#+END_SRC
Then save and exit.
** Setting up a web site
#+BEGIN_VERSE
/It's important to have the geek community as a whole think about its responsibility and what it can do. We need various alternative voices pushing back on conventional government sometimes./
-- Tim Berners-Lee
#+END_VERSE
Edit the apache configuration so that it doesn't run out of memory if there are a lot of connections.
#+BEGIN_SRC: bash
su
emacs /etc/apache2/apache2.conf
#+END_SRC
Search for MaxClients and replace the value with 6. As an example the settings should look something like this:
#+BEGIN_SRC: bash
StartServers 3
MinSpareServers 3
MaxSpareServers 5
MaxClients 6
MaxRequestsPerChild 0
StartServers 2
MinSpareThreads 25
MaxSpareThreads 75
ThreadLimit 64
ThreadsPerChild 25
MaxClients 6
MaxRequestsPerChild 0
StartServers 2
MinSpareThreads 25
MaxSpareThreads 75
ThreadLimit 64
ThreadsPerChild 25
MaxClients 6
MaxRequestsPerChild 0
#+END_SRC
Then save and exit In the examples below replace /mydomainname.com/ with your own domain name.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
mkdir /var/www/$HOSTNAME
mkdir /var/www/$HOSTNAME/htdocs
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
The Apache configuration for the site should look something like the following. Replace /mydonainname.com/ with the site domain name.
#+BEGIN_SRC: bash
ServerAdmin myusername@mydomainname.com
ServerName mydomainname.com
DocumentRoot /var/www/mydomainname.com/htdocs
Options FollowSymLinks
AllowOverride All
Options All
AllowOverride All
Order allow,deny
allow from all
# Don't serve .php~ or .php# files created by emacs
Order allow,deny
Deny from all
Header set X-Content-Type-Options nosniff
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate, private"
Header set Pragma no-cache
deny from all
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
AllowOverride All
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel error
CustomLog ${APACHE_LOG_DIR}/access.log combined
ServerAdmin myusername@mydomainname.com
ServerName mydomainname.com
DocumentRoot /var/www/mydomainname.com/htdocs
Options FollowSymLinks
AllowOverride All
Options All
AllowOverride All
Order allow,deny
allow from all
# Don't serve .php~ or .php# files created by emacs
Order allow,deny
Deny from all
Header set X-Content-Type-Options nosniff
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate, private"
Header set Pragma no-cache
deny from all
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
AllowOverride All
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel error
CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined
# SSL Engine Switch:
# Enable/Disable SSL for this virtual host.
SSLEngine on
# A self-signed certificate
SSLCertificateFile /etc/ssl/certs/mydomainname.com.crt
SSLCertificateKeyFile /etc/ssl/private/mydomainname.com.key
# Options based on bettercrypto.org
SSLProtocol All -SSLv2 -SSLv3
SSLHonorCipherOrder On
SSLCompression off
SSLCipherSuite EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA
# Add six earth month HSTS header for all users ...
Header add Strict-Transport-Security "max-age=15768000"
# If you want to protect all subdomains , use the following header
# ALL subdomains HAVE TO support https if you use this !
# Strict-Transport-Security: max-age=15768000 ; includeSubDomains
# SSL Engine Options:
# Set various options for the SSL engine.
# o FakeBasicAuth:
# Translate the client X.509 into a Basic Authorisation. This means that
# the standard Auth/DBMAuth methods can be used for access control. The
# user name is the `one line' version of the client's X.509 certificate.
# Note that no password is obtained from the user. Every entry in the user
# file needs this password: `xxj31ZMTZzkVA'.
# o ExportCertData:
# This exports two additional environment variables: SSL_CLIENT_CERT and
# SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
# server (always existing) and the client (only existing when client
# authentication is used). This can be used to import the certificates
# into CGI scripts.
# o StdEnvVars:
# This exports the standard SSL/TLS related `SSL_*' environment variables.
# Per default this exportation is switched off for performance reasons,
# because the extraction step is an expensive operation and is usually
# useless for serving static content. So one usually enables the
# exportation for CGI and SSI requests only.
# o StrictRequire:
# This denies access when "SSLRequireSSL" or "SSLRequire" applied even
# under a "Satisfy any" situation, i.e. when it applies access is denied
# and no other module can change it.
# o OptRenegotiate:
# This enables optimized SSL connection renegotiation handling when SSL
# directives are used in per-directory context.
#SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
SSLOptions +StdEnvVars
SSLOptions +StdEnvVars
# SSL Protocol Adjustments:
# The safe and default but still SSL/TLS standard compliant shutdown
# approach is that mod_ssl sends the close notify alert but doesn't wait for
# the close notify alert from client. When you need a different shutdown
# approach you can use one of the following variables:
# o ssl-unclean-shutdown:
# This forces an unclean shutdown when the connection is closed, i.e. no
# SSL close notify alert is send or allowed to received. This violates
# the SSL/TLS standard but is needed for some brain-dead browsers. Use
# this when you receive I/O errors because of the standard approach where
# mod_ssl sends the close notify alert.
# o ssl-accurate-shutdown:
# This forces an accurate shutdown when the connection is closed, i.e. a
# SSL close notify alert is send and mod_ssl waits for the close notify
# alert of the client. This is 100% SSL/TLS standard compliant, but in
# practice often causes hanging connections with brain-dead browsers. Use
# this only for browsers where you know that their SSL implementation
# works correctly.
# Notice: Most problems of broken clients are also related to the HTTP
# keep-alive facility, so you usually additionally want to disable
# keep-alive for those clients, too. Use variable "nokeepalive" for this.
# Similarly, one has to force some clients to use HTTP/1.0 to workaround
# their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
# "force-response-1.0" for this.
BrowserMatch "MSIE [2-6]" \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0
# MSIE 7 and newer should be able to use keepalive
BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
#+END_SRC
Then to enable the site:
#+BEGIN_SRC: bash
a2ensite
a2dissite default
a2dissite default-ssl
a2enmod rewrite
a2enmod headers
#+END_SRC
Ensure that "NameVirtualHost *:443" is added to /etc/apache2/ports.conf. It should look something like the following:
#+BEGIN_SRC: bash
NameVirtualHost *:80
Listen 80
NameVirtualHost *:443
Listen 443
NameVirtualHost *:443
Listen 443
#+END_SRC
Create a self-signed certificate. The passphrase isn't important and will be removed, so make it easy (such as "password").
#+BEGIN_SRC: bash
emacs makecert
#+END_SRC
Enter the following:
#+BEGIN_SRC: bash
#!/bin/bash
HOSTNAME=$1
openssl genrsa -des3 -out $HOSTNAME.key 1024
openssl req -new -x509 -nodes -sha1 -days 3650 -key $HOSTNAME.key -out $HOSTNAME.crt
openssl rsa -in $HOSTNAME.key -out $HOSTNAME.new.key
cp $HOSTNAME.new.key $HOSTNAME.key
rm $HOSTNAME.new.key
cp $HOSTNAME.key /etc/ssl/private
chmod 400 /etc/ssl/private/$HOSTNAME.key
cp $HOSTNAME.crt /etc/ssl/certs
shred -zu $HOSTNAME.key $HOSTNAME.crt
a2enmod ssl
service apache2 restart
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod +x makecert
./makecert mydomainname.com
#+END_SRC
Enter some trivial password for the key file. The password will be removed as part of the makecert script. Note that leaving a password on the key file would mean that after a power cycle the apache server will not be able to boot properly (it would wait indefinitely for a password to be manually entered) and would look as if it had crashed.
If all has gone well then there should be no warnings or errors after you run the service restart command. After that you should enable ports 80 (HTTP) and 443 (HTTPS) on your internet router/firewall, such that they are redirected to the BBB.
** Accessing your Email
*** Mutt email client
#+BEGIN_VERSE
/I dreamt last night that I was living in a surveillance state. I woke up and… I’m still in a surveillance state./
-- Conrad Kramer
#+END_VERSE
#+BEGIN_SRC: bash
apt-get install mutt-patched lynx abook
exit
mkdir ~/.mutt
echo "text/html; lynx -dump -width=78 -nolist %s | sed ‘s/^ //’; copiousoutput; needsterminal; nametemplate=%s.html" > ~/.mutt/mailcap
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
su
emacs /etc/Muttrc
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
set mbox_type=Maildir
set folder="~/Maildir"
set mask="!^\\.[^.]"
set mbox="~/Maildir"
set record="+Sent"
set postponed="+Drafts"
set trash="+Trash"
set spoolfile="~/Maildir"
auto_view text/x-vcard text/html text/enriched
set editor="emacsclient %s"
set header_cache="+.cache"
macro index S "=.learn-spam" "move to learn-spam"
macro pager S "=.learn-spam" "move to learn-spam"
macro index H "=.learn-ham" "copy to learn-ham"
macro pager H "=.learn-ham" "copy to learn-ham"
# set up the sidebar
set sidebar_width=12
set sidebar_visible=yes
set sidebar_delim='|'
set sidebar_sort=yes
set rfc2047_parameters
# Show inbox and sent items
mailboxes = =Sent
# Alter these colours as needed for maximum bling
color sidebar_new yellow default
color normal white default
color hdrdefault brightcyan default
color signature green default
color attachment brightyellow default
color quoted green default
color quoted1 white default
color tilde blue default
# ctrl-n, ctrl-p to select next, prev folder
# ctrl-o to open selected folder
bind index \Cp sidebar-prev
bind index \Cn sidebar-next
bind index \Co sidebar-open
bind pager \Cp sidebar-prev
bind pager \Cn sidebar-next
bind pager \Co sidebar-open
# ctrl-b toggles sidebar visibility
macro index \Cb 'toggle sidebar_visible' "toggle sidebar"
macro pager \Cb 'toggle sidebar_visible' "toggle sidebar"
# esc-m Mark new messages as read
macro index m "T~N;WNT~O;WO\CT~T" "mark all messages read"
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/mail/spamassassin/local.cf
#+END_SRC
Uncomment *use_bayes*, *bayes_auto_learn*
Save and exit, then run:
#+BEGIN_SRC: bash
service spamassassin restart
#+END_SRC
Now to add an address book:
#+BEGIN_SRC: bash
emacs ~/.muttrc
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
set alias_file=~/.mutt-alias
source ~/.mutt-alias
set query_command= "abook --mutt-query '%s'"
macro index,pager A "abook --add-email-quiet" "add the sender address to abook"
#+END_SRC
Then save and exit.
#+BEGIN_SRC: bash
touch ~/.mutt-alias
#+END_SRC
Finally you can then type *mutt* to get access to your email. Hence as a fallback, or if you prefer as the primary way of accessing email, you can ssh into the BBB and use the mutt command line email client. Ssh clients are available for all operating systems, and also you should be reasonably protected from passive surveillance between wherever you are and the BBB (although not between the BBB and the wider internet), which can be useful if you are for example using an Android tablet from a cafe or railway station.
To use the address book system open an email and then to add the sender to the address list press the A key. It will ask you for an alias which may be used the next time you want to send a mail. Alternatively you may just edit the *~/.mutt-alias* file directly to add email addresses.
Some useful keys to know are:
| ESC / | Search for text within message contents |
| "/" | Search for text within headers |
| * | Move to the last message |
| TAB | Move to the next unread message |
| d | Delete a message |
| u | Undelete a mail which is pending deletion |
| $ | Delete all messages selected and check for new messages |
| a | Add to the address book |
| m | Send a new mail |
| ESC-m | Mark all messages as having been read |
| S | Mark a message as spam |
| H | Mark a message as ham |
| CTRL-b | Toggle side bar on/off |
| CTRL-n | Next mailbox (on side bar) |
| CTRL-p | Previous mailbox (on side bar) |
| CTRL-o | Open mailbox (on side bar) |
*** K9 Android client
#+BEGIN_VERSE
/The surveillance state is robust. It is robust politically, legally, and technically./
-- Bruce Schneier
#+END_VERSE
**** Incoming server settings
* Select settings/account settings
* Select Fetching mail/incoming server
* Enter your username and password
* IMAP server should be your domain name
* Security: SSL/TLS (always)
* Authentication: Plain
* Port: 993
**** Outgoing (SMTP) server settings
* Select settings/account settings
* Select Sending mail/outgoing server
* Set SMTP server to your domain name
* Set Security to SSL/TLS (always)
* Set port to 465
* Set authentication to PLAIN
* Enter your username and password
* Accept the SSL certificate
**** Folders
To view any new folders which you may have created using the /mailinglistrule/ script from your inbox press the *K9 icon* at the top left to access folders, then press the *menu button* and select *refresh folder list*.
If your folder still doesn't show up then press the *menu button*, select *show folders* and select *all folders*.
*** Webmail
#+BEGIN_VERSE
/Most of the information extracted is "content", such as recordings of phone calls or the substance of email messages./
-- From a 2013 Guardian article on GCHQ/NSA bulk internet data interception.
#+END_VERSE
For maximum speed and efficiency the recommended email client is Mutt, accessed via ssh, but non-technical people who aren't using an Android app are unlikely to want to use email in that manner. So it's a good idea to also have a webmail system installed, both for accessibility and as a fallback should ssh not be available due to port blocking.
Install dependencies.
#+BEGIN_SRC: bash
apt-get install libapache2-mod-authz-unixgroup
#+END_SRC
Create a mysql database, specifying a password which should be a long random string generated with a password manager such as KeepassX.
#+BEGIN_SRC: bash
mysql -u root -p
create database roundcubemail;
CREATE USER 'roundcube'@'localhost' IDENTIFIED BY 'roundcubepassword';
GRANT ALL PRIVILEGES ON roundcubemail.* TO 'roundcube'@'localhost';
quit
#+END_SRC
Download roundcube.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/roundcubemail.tar.gz
#+END_SRC
Verify it.
#+BEGIN_SRC: bash
sha256sum roundcubemail.tar.gz
e8a311b22a8e1f70abb72ed9551cc9233cf6c5221f1eebf1ae64974117e3148b roundcubemail.tar.gz
#+END_SRC
Extract the files.
#+BEGIN_SRC: bash
tar -xzvf roundcubemail.tar.gz
export HOSTNAME=mydomainname.com
cp -r roundcubemail-* /var/www/$HOSTNAME/htdocs/mail
chown -R www-data:www-data /var/www/$HOSTNAME/htdocs/mail/temp
chown -R www-data:www-data /var/www/$HOSTNAME/htdocs/mail/logs
rm /var/www/$HOSTNAME/htdocs/mail/.htaccess
#+END_SRC
Edit your web site configuration.
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
Within the 80 VirtualHost section add the following:
#+BEGIN_SRC: bash
deny from all
#+END_SRC
Within the 443 VirtualHost section add the following:
#+BEGIN_SRC: bash
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
#+END_SRC
Save and exit, then restart Apache.
#+BEGIN_SRC: bash
service apache2 restart
#+END_SRC
Now with a browser visit https://mydomainname.com/mail/installer. Scroll down and click "next". Give your webmail site a product name.
The *spellcheck_engine* option being limited to Google is slightly concerning in terms of privacy and security, but seems not to be implemented.
Change the *database password* to the password you gave when creating the MySql database above.
Set *smtp_port* to 465.
Click *create config*
Click download to download the file.
In a terminal on your local machine (not logged into the BBB):
#+BEGIN_SRC: bash
cd ~/Downloads
scp config.inc.php myusername@mydomainname.com:/home/myusername
#+END_SRC
Then in a terminal ssh'd into the BBB:
#+BEGIN_SRC: bash
mv /home/myusername/config.inc.php /var/www/$HOSTNAME/htdocs/mail/config
chmod 755 /var/www/$HOSTNAME/htdocs/mail/config/config.inc.php
#+END_SRC
Click *continue*.
Click *initialize database*.
Under *Test SMTP config* you can use a [[mailinator.com]] address to check that mail can be sent.
Now we can delete the installer.
#+BEGIN_SRC: bash
rm -rf /var/www/$HOSTNAME/htdocs/mail/installer
#+END_SRC
Now with a browser navigate to https://mydomainname.com/mail and log in.
You'll notice that you may not be able to see any mailing list folders which you may have created earlier using the /mailinglistrule/ script. To make folders visible click on the cog-like settings icon at the bottom left of the screen then select *manage folders*. You will then be able to select which folders you wish to become visible. Make sure that the *Sent*, *spam* and *ham* folders are selected.
Click on the *Mail* icon to go back to your main mail screen then click on the *Settings* icon at the top right of the screen and select *special folders*. Set *Junk* to *spam* then click the save button. Also select *identities* and make sure that your email address is correct.
*** Thunderbird
#+BEGIN_VERSE
/Towards the end of 2012, we heard from the National Technical Assistance Centre (NTAC), a division of GCHQ and a liaison with the Home Office, [that] they wanted the keys to decrypt the customer data./
-- Brian Spector, on the shutting down of the PrivateSky encrypted email service
#+END_VERSE
Another common way in which you may want to access email is via Thunderbird. This may be especially useful if you're trying to convert former Windows users who may previously have been using some version of Outlook.
The following instructions should be carried out on the client machines (laptop, etc), not on the BBB itself.
**** Initial setup
Install *Thunderbird* and *Enigmail*. How you do this just depends upon your distro and software manager or "app store".
Open Thinderbird
Select "*Skip this and use existing email*"
Enter your name, email address (myusername@mydomainname.com) and the password for your user (the one from [[Add a user]]).
You'll get a message saying "/Thunderbird failed to find the settings/"
The settings should be as follows, substituting /mydomainname.com/ for your domain name and /myusername/ for the username given previously in [[Add a user]].
* Incoming: IMAP, mydomainname.com, 993, SSL/TLS, Normal Password
* Outgoing: SMTP, mydomainname.com, 465, SSL/TLS, Normal Password
* Username: myusername
Click *Done*.
Click *Get Certificate* and make sure "*permanently store this exception*" is selected", then click *Store Security Exception*.
From OpenPGP setup select "*Yes, I would like the wizard to get me started*". If the wizard doesn't start automatically then "setup wizard" can be selected from OpenPGP on the menu bar.
Select "*Yes, I want to sign all of my email*"
Select "*No, I will create per-recipient rules*"
Select "*yes*" to change default settings.
**** If you have existing GPG key
Export your GPG public and private keys.
#+BEGIN_SRC: bash
gpg --output ~/public_key.txt --armor --export KEY_ID
gpg --output ~/private_key.txt --armor --export-secret-key KEY_ID
#+END_SRC
Select "*I have existing public and private keys*".
Select your public and private GPG exported key files.
Select the account which you want to use and click *Next*, *Next* and *Finish*.
Remove your exported key files.
#+BEGIN_SRC: bash
shred -zu ~/public_key.txt
shred -zu ~/private_key.txt
#+END_SRC
**** If you don't have any existing GPG or PGP key
Select "*I want to create a new key pair*"
Enter a passphrase and click *Next* a couple of times.
Click *Generate Certificate* to generate a revocation certificate.
Enter the passphrase which you gave previously.
Click *Finish*
From the menu select *OpenPGP* and then *Key Management*. Make sure that *Display all keys* is selected and then select your key. Select *Keyserver* on the menu and then *Upload Public Keys*. This will upload your public key to a key server so that others can find it.
Select *File* from the menu then *Export keys to file*. Click on *Export Secret keys* and select a location to save them to. It's a good idea to save them to a USB stick which can then be removed from the computer and carried around on a keyring together with your physical keys. If you need to set up GPG or Thunderbird/Enigmail on others then this file will be used to import your keys.
**** Using for the first time
Click on the Thunderbird menu, which looks like three horizontal bars on the right hand side.
Hover over *preferences* and then *Account settings*.
Select *Synchronization & Storage*.
Make sure that *Keep messages for this account on this computer* is unticked, then click *Ok*.
Click on *Inbox*. Depending upon how much email you have it may take a while to import the subject lines.
Note that when sending an email for the first time you will also need to accept the SSL certificate.
Get into the habit of using email encryption and encourage others to do so. Remember that you may not think that your emails are very interesting but the Surveillance State is highly interested in them and will be actively trying to data mine your private life looking for "suspicious" patterns, regardless of whether you are guilty of any crime or not.
**** Making folders visible
By default you won't be able to see any folders which you may have created earlier using the /mailinglistrule/ script. To make folders visible select:
*Menu*, hover over *Preferences*, select *Account Settings*, select *Server Settings* then click on the *Advanced* button.
Make sure that "*show only subscribed folders*" is not checked. Then click the *ok* buttons. Folders will be re-scanned, which may take some time depending upon how much email you have, but your folders will then appear.
** Install a Blog
#+BEGIN_VERSE
/When society gives censors wide and vague powers they never confine themselves to deserving targets. They are not snipers, but machine-gunners. Allow them to fire at will, and they will hit anything that moves./
-- Nick Cohen
#+END_VERSE
Wordpress is the most popular blogging platform, but in practice I found it to be high maintenance with frequent security updates and breakages. More practical for a home server is Flatpress. Flatpress doesn't use a MySql database, just text files, and so is easy to relocate or reinstall.
See the [[Setting up a web site]] section of this document for details of how to configure the web server for your blog's domain.
Download flatpress.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/flatpress.tar.gz
#+END_SRC
Verify the download:
#+BEGIN_SRC: bash
sha256sum flatpress.tar.gz
6312a49aab5aabd6371518dcaf081f489dff04d001bc34b4fe3f2a81170bbd4e flatpress.tar.gz
#+END_SRC
Extract and install it.
#+BEGIN_SRC: bash
tar -xzvf flatpress.tar.gz
cd flatpress-*
cp -r * /var/www/$HOSTNAME/htdocs
rm -rf flatpress-*
rm -f flatpress.tar.gz
#+END_SRC
Now visit your blog and follow the setup instructions, which are quite minimal. Various themes and addons are available from the Flatpress web site, http://www.flatpress.org
** Install an IRC server
#+BEGIN_VERSE
/Give me the liberty to know, to utter, and to argue freely according to conscience, above all liberties./
-- John Milton
#+END_VERSE
*** Base install
IRC is not an especially secure system. For instance, even with the best encryption it's easily possible to imagine IRC-specific cribs which could be used by cryptanalytic systems. However, we'll try to implement it in a manner which will at least give the surveillance aparatus something to ponder over.
First install some dependencies.
#+BEGIN_SRC: bash
apt-get update
apt-get install build-essential openssl libssl-dev
#+END_SRC
Then get the source code for ircd-hybrid.
#+BEGIN_SRC: bash
cd /tmp
mkdir hybrid
cd hybrid
apt-get source ircd-hybrid
#+END_SRC
Modify the source code to include SSL security.
#+BEGIN_SRC: bash
emacs ircd-hybrid-*/debian/rules
#+END_SRC
Beneath MAXCLIENTS add the line:
#+BEGIN_SRC: bash
USE_OPENSSL = 1
#+END_SRC
Then save and exit. Now we can build the debian package for ircd-hybrid and install it.
#+BEGIN_SRC: bash
cd ircd-hybrid-*
dpkg-buildpackage -rfakeroot -uc -b
cd ..
dpkg -i ircd-hybrid_*.deb
#+END_SRC
Customise the configuration to your system, giving it a name and description. In this example 192.168.1.60 is the static IP address on the BBB on the local network, so change that if necessary.
#+BEGIN_SRC: bash
emacs /etc/ircd-hybrid/ircd.conf
#+END_SRC
Set *name* to the name of your server, and set a description.
Set a *network_name* and *network_desc*. The network name should not contain any spaces.
Set max_clients to 20, or however many you expect that you'll typically need.
Within the admin section set your *name* and *email*.
Within the *listen* section set host to your fixed IP address (in the earlier
sections it was 192.168.1.60).
Within the *auth* section set user = "*@192.168.1.60" - or whatever the fixed IP address of the BBB is on your network.
Uncomment the first *connect* section and set the *name* to your domain name, the *host* to 192.168.1.60 and the send/accept passwords to a password which you use to log into the IRC server. Also set the *port* to 6670.
Save and exit, then restart the IRC server. Open port 6670 on your internet router and forward it to the BBB.
Ensure that the configuration is only readable by the root user.
#+BEGIN_SRC: bash
chmod 600 /etc/ircd-hybrid/ircd.conf
#+END_SRC
*** Channel management
To to install channel management tools.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/hybserv_1.9.4-1_armhf.deb
#+END_SRC
Verify it.
#+BEGIN_SRC: bash
sha256sum hybserv_1.9.4-1_armhf.deb
41bf4eb6e24c87610a80bc14db1103a57484835510eea7e4ba9709c523318615 hybserv_1.9.4-1_armhf.deb
#+END_SRC
Install it.
#+BEGIN_SRC: bash
dpkg -i hybserv_1.9.4-1_armhf.deb
#+END_SRC
Make a md5 version of the password for the IRC server operator.
#+BEGIN_SRC: bash
/usr/bin/mkpasswd
#+END_SRC
Edit the ircd-hybrid configuration.
#+BEGIN_SRC: bash
emacs /etc/ircd-hybrid/ircd.conf
#+END_SRC
Enter the md5 password which you previously created within the /operator/ section. Also change /user/ to:
#+BEGIN_SRC: bash
user = "*@*";
#+END_SRC
Then save and exit.
#+BEGIN_SRC: bash
emacs /etc/hybserv/hybserv.conf
#+END_SRC
Change #MD5 PASSWORD HERE# to the md5 operator password created earlier, mydomainname.com to your domain name and mysendacceptpassword to the send/accept password specified within /ircd.conf/.
#+BEGIN_SRC: bash
A:mynickname
N:irc.mydomainname.com:Hybrid services
O:*@*:#MD5 PASSWORD HERE#:root:segj (comment out other Q: lines)
S:mysendacceptpassword:192.168.1.60:6670 (remove the other two services)
#+END_SRC
Also remove the line *#NOT-EDITED#*, then save and exit.
Now we need to restart the ircd and hybrid server to make things work:
#+BEGIN_SRC: bash
service ircd-hybrid restart
service hybserv start
#+END_SRC
*** Usage with Irssi
On another computer (not the BBB).
#+BEGIN_SRC: bash
sudo apt-get install irssi
irssi
#+END_SRC
Connect to the IRC and identify yourself as an operator. Here /mynetwork/ should be the same as *network_name* specified earlier within /ircd.conf/. The network name is something equivalent to "freenode".
#+BEGIN_SRC: bash
/network add -nick mynick mynetwork
/channel add -auto #mychannel mynetwork channelpassword
/server add -auto -network mynetwork -ssl mydonainname.com 6670 mysendacceptpassword
/connect mydomainname.com
/join #mychannel
/msg -servername chanserv REGISTER #mychannel channelpassword
/msg -servername chanserv set #mychannel mlock +k channelpassword
#+END_SRC
If you edit the irssi config file:
#+BEGIN_SRC: bash
emacs ~/.irssi/config
#+END_SRC
It should look something like this:
#+BEGIN_SRC: bash
{
address = "mydomainname.com";
chatnet = "mynetwork";
port = "6670";
password = "mysendacceptpassword";
use_ssl = "yes";
ssl_verify = "no";
autoconnect = "yes";
},
#+END_SRC
If you're not using a self-signed certificate (self-signed is the default) then you can set *ssl_verify* to "yes".
By default Irssi does not look especially attractive. To improve it's looks:
#+BEGIN_SRC: bash
cd ~/.irssi
wget http://freedombone.uk.to/irssi/xchat.theme
mkdir ~/.irssi/scripts
mkdir ~/.irssi/scripts/autorun
cd ~/.irssi/scripts/autorun
wget http://freedombone.uk.to/irssi/xchatnickcolor.pl
wget http://freedombone.uk.to/irssi/adv_windowlist.pl
#+END_SRC
Verify the files:
#+BEGIN_SRC: bash
sha256sum ~/.irssi/xchat.theme
7a84130ad55aabd0b043a03b013628438e6c7f82a58e15267633bc7eb443e60b
sha256sum ~/.irssi/scripts/autorun/xchatnickcolor.pl
8293e867a22d42ce5a28cd755237509b6f3587fd2b21d7d20af4a832081610ca
sha256sum ~/.irssi/scripts/autorun/adv_windowlist.pl
e4dd8f6d384bf4f2d0ab5ccf06df06e4a69d2647b08d37c8fc6cfd9326688395
#+END_SRC
Then run Irssi and enter the commands:
#+BEGIN_SRC: bash
/set theme xchat
/statusbar window remove act
/set awl
/set awl_block -14
/set awl_display_key $Q%K|$N%n $H$C$S
/set awl_display_key_active $Q%K|$N%n $H%U$C%n$S
/set awl_display_nokey [$N]$H$C$S
/run autorun/adv_windowlist.pl
/set awl_viewer off
/save
#+END_SRC
*** Usage with XChat
Within the network list click, *Add* and enter your domain name then click *Edit*.
Select the entry within the servers box, then enter *mydomainname.com/6670* and press *Enter*.
Uncheck *use global user information*.
Enter first and second nicknames and check *auto connect to this network on startup*.
Check *use SSL* and *accept invalid SSL certificate*.
Enter some favourite channels and within *server password* enter /mysendacceptpassword/ which you defined earlier when setting up the server.
Click *close* and then *connect*.
*** Install Irssi as a daemon
It may be useful to run a persistent Irssi session on the BBB. This will enable you to log in and see any entries which occurred previously so that you don't find yourself in an argument without knowledge of what was said in the last few minutes or hours. This feature only works for a single user on the BBB - typically the administrator.
First install some prerequisites.
#+BEGIN_SRC: bash
apt-get install irssi screen
#+END_SRC
Create an initialisation script.
#+BEGIN_SRC: bash
emacs /etc/init.d/irssid
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
#!/bin/bash
### BEGIN INIT INFO
# Provides: irssid
# Required-Start: $network
# Required-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start irssi daemon within screen session at boot time
# Description: This init script will start an irssi session under screen using the settings provided in /etc/irssid.conf
### END INIT INFO
# Include the LSB library functions
. /lib/lsb/init-functions
# Setup static variables
configFile='/etc/irssid.conf'
daemonExec='/usr/bin/screen'
daemonArgs='-D -m'
daemonName="$(basename "$daemonExec")"
pidFile='/var/run/irssid.pid'
#
# Checks if the environment is capable of running the script (such as
# availability of programs etc).
#
# Return: 0 if the environmnt is properly setup for execution of init script, 1
# if not all conditions have been met.
#
function checkEnvironment() {
# Verify that the necessary binaries are available for execution.
local binaries=(irssi screen)
for bin in "${binaries[@]}"; do
if ! which "$bin" > /dev/null; then
log_failure_msg "Binary '$bin' is not available. Please install \
package containing it."
exit 5
fi
done
}
#
# Checks if the configuration files are available and properly setup.
#
# Return: 0 if irssid if properly configured, 1 otherwise.
#
function checkConfig() {
# Make sure the configuration file has been created
if ! [[ -f $configFile ]]; then
log_failure_msg "Please populate the configuration file '$configFile' \
before running."
exit 6
fi
# Make sure the required options have been set
local reqOptions=(user group session)
for option in "${reqOptions[@]}"; do
if ! grep -q -e "^[[:blank:]]*$option=" "$configFile"; then
log_failure_msg "Mandatory option '$option' was not specified in \
'$configFile'"
exit 6
fi
done
}
#
# Loads the configuration file and performs any additional configuration steps.
#
function configure() {
. "$configFile"
daemonArgs="$daemonArgs -S $session irssi"
[[ -n $args ]] && daemonArgs="$daemonArgs $args"
daemonCommand="$daemonExec $daemonArgs"
}
#
# Starts the daemon.
#
# Return: LSB-compliant code.
#
function start() {
start-stop-daemon --start --quiet --oknodo --pidfile "$pidFile" \
--make-pidfile --chuid "$user:$group" --background \
--exec "$daemonExec" -- $daemonArgs
}
#
# Stops the daemon.
#
# Return: LSB-compliant code.
#
function stop() {
start-stop-daemon --stop --quiet --oknodo --retry 30 --pidfile "$pidFile" \
--chuid "$user:$group" --exec "$daemonExec" -- $daemonArgs
}
checkEnvironment
checkConfig
configure
case "$1" in
start)
log_daemon_msg "Starting daemon" "irssid"
start && log_end_msg 0 || log_end_msg $?
;;
stop)
log_daemon_msg "Stopping daemon" "irssid"
stop && log_end_msg 0 || log_end_msg $?
;;
restart)
log_daemon_msg "Restarting daemon" "irssid"
stop
start && log_end_msg 0 || log_end_msg $?
;;
force-reload)
log_daemon_msg "Restarting daemon" "irssid"
stop
start && log_end_msg 0 || log_end_msg $?
;;
status)
status_of_proc -p "$pidFile" "$daemonExec" screen && exit 0 || exit $?
;;
*)
echo "irssid (start|stop|restart|force-reload|status|help)"
;;
esac
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod +x /etc/init.d/irssid
#+END_SRC
Create a configuration file, replacing /myusername/ with your username.
#+BEGIN_SRC: bash
emacs /etc/irssid.conf
#+END_SRC
#+BEGIN_SRC: bash
#
# Configuration file for irssid init script
#
# Mandatory options:
#
# user - Specify user for running irssi.
# group - Specify group for running irssi.
# session - Specify screen session name to be used for irssi.
#
# Non-mandatory options:
#
# args - Pass additional arguments to irssi.
#
user='myusername'
group='irssi'
session='irssi'
args='--config /home/myusername/.irssi/config'
#+END_SRC
Save and exit. Then add your user to the irssi group and start the daemon.
#+BEGIN_SRC: bash
groupadd irssi
usermod -aG irssi myusername
update-rc.d irssid defaults
service irssid start
#+END_SRC
Create a script to make running IRC on the server easier.
#+BEGIN_SRC: bash
emacs /usr/bin/irc
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
#!/bin/bash
screen -r irssi
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod +x /usr/bin/irc
chown myusername:myusername /usr/bin/irc
#+END_SRC
Then to subsequently access irssi log into the BBB using ssh and type:
#+BEGIN_SRC: bash
irc
#+END_SRC
** Install a Jabber/XMPP server
#+BEGIN_VERSE
/Well heck, it isn’t that hard to write an instant messaging system./
--Jeremie Miller
#+END_VERSE
*** The Server
Generate a SSL certificate.
#+BEGIN_SRC: bash
openssl ecparam -out /etc/ssl/private/xmpp.pem -name prime256v1
openssl genpkey -paramfile /etc/ssl/private/xmpp.pem -out /etc/ssl/private/xmpp.key
openssl req -new -x509 -key /etc/ssl/private/xmpp.key -out /etc/ssl/certs/xmpp.crt -days 3650
#+END_SRC
The above uses a Diffie-Hellman elliptic curve (ECDH P-256) algorithm. It is apparent that amongst crypographers there are differences of opinion about the security of elliptic curves, so if you prefer there is also a more traditional RSA way to generate an SSL certificate:
#+BEGIN_SRC: bash
openssl genrsa -out /etc/ssl/private/xmpp.key 4096
openssl req -new -x509 -key /etc/ssl/private/xmpp.key -out /etc/ssl/certs/xmpp.crt -days 3650
#+END_SRC
Change permissions.
#+BEGIN_SRC: bash
chmod 600 /etc/ssl/private/xmpp.key
chmod 600 /etc/ssl/certs/xmpp.crt
chown prosody:prosody /etc/ssl/private/xmpp.key
chown prosody:prosody /etc/ssl/certs/xmpp.crt
#+END_SRC
Install Prosody.
#+BEGIN_SRC: bash
apt-get install prosody
cp -a /etc/prosody/conf.avail/example.com.cfg.lua /etc/prosody/conf.avail/xmpp.cfg.lua
emacs /etc/prosody/conf.avail/xmpp.cfg.lua
#+END_SRC
Change the *VirtualHost* name to your domain name and remove the line below it.
Set the ssl section to:
#+BEGIN_SRC: bash
ssl = {
key = "/etc/ssl/private/xmpp.key";
certificate = "/etc/ssl/certs/xmpp.crt";
}
#+END_SRC
And also append the following:
#+BEGIN_SRC: bash
modules_enabled = {
"bosh"; -- Enable mod_bosh
"tls"; -- Enable mod_tls
}
c2s_require_encryption = true
s2s_require_encryption = true
#+END_SRC
Save and exit. Create a symbolic link.
#+BEGIN_SRC: bash
ln -sf /etc/prosody/conf.avail/xmpp.cfg.lua /etc/prosody/conf.d/xmpp.cfg.lua
#+END_SRC
Add a user. You will be prompted to specify a password. You can repeat the process for as many users as needed. This will also be your Jabber ID (JID).
#+BEGIN_SRC: bash
prosodyctl adduser myusername@mydomainname.com
#+END_SRC
Restart the server
#+BEGIN_SRC: bash
service prosody restart
#+END_SRC
On your internet router/firewall open ports 5222, 5223, 5269, 5280 and 5281 and forward them to the BBB.
It's possible to test that your XMPP server is working at https://xmpp.net. It may take several minutes and you'll get a low score because of the self-signed certificate, but it will at least verify that your server is capable of communicating.
*** Managing users
To add a user:
#+BEGIN_SRC: bash
prosodyctl adduser myusername@mydomainname.com
#+END_SRC
To change a user password:
#+BEGIN_SRC: bash
prosodyctl passwd myusername@mydomainname.com
#+END_SRC
To remove a user:
#+BEGIN_SRC: bash
prosodyctl deluser myusername@mydomainname.com
#+END_SRC
Report the status of the XMPP server:
#+BEGIN_SRC: bash
prosodyctl status
#+END_SRC
*** Using with Jitsi
Jitsi is the recommended communications client for desktop or laptop systems, since it includes the /off the record/ (OTR) feature which provides some additional security beyond the usual SSL certificates.
Jitsi can be downloaded from https://jitsi.org/
On your desktop/laptop open Jitsi and select *Options* from the *Tools* menu.
Click *Add* to add a new user, then enter the Jabber ID which you previously specified with /prosodyctl/ when setting up the XMPP server. Close and then you should notice that your status is "Online" (or if not then you should be able to set it to online).
From the *File* menu you can add contacts, then select the chat icon to begin a chat. Click on the lock icon on the right hand side and this will initiate an authentication procedure in which you can specify a question and answer to verify the identity of the person you're communicating with. Once authentication is complete then you'll be chating using OTR, which provides an additional layer of security.
When opening Jitsi initially you will get a certificate warning for your domain name (assuming that you're using a self-signed certificate). If this happens then select *View Certificate* and enable the checkbox to trust the certificate, then select *Continue Anyway*. Once you've done this then the certificate warning will not appear again unless you reinstall Jitsi or use a different computer.
You can also [[https://www.youtube.com/watch?v=vgx7VSrDGjk][see this video]] as an example of using OTR.
*** Using with Ubuntu
The default XMPP client in Ubuntu is Empathy. Using Empathy isn't as secure as using Jitsi, since it doesn't include the /off the record/ feature, but since it's the default it's what many users will have easy access to.
Open *System Settings* and select *Online Accounts*, *Add account* and then *Jabber*.
Enter your username (myusername@mydomainname.com) and password.
Click on *Advanced* and make sure that *Encryption required* and *Ignore SSL certificate errors* are checked. Ignoring the certificate errors will allow you to use the self-signed certificate created earlier. Then click *Done* and set your Jabber account and Empathy to *On*.
*** Using with Android
There are a few XMPP clients available on Android. Ideally choose ones which support off-the-record messaging. Here are some examples.
**** Xabber
Install [[https://f-droid.org/][F-Droid]]
Search for and install Xabber.
Add an account and enter your Jabber/XMPP ID and password.
From the menu select *Settings* then *Security* then *OTR mode*. Set the mode to *Required*.
Make sure that *Check server certificate* is not checked.
Go back to the initial screen and then using the menu you can add contacts and begin chatting. Both parties will need to go through the off-the-record question and answer verification before the chat can begin, but that only needs to be done once for each person you're chatting with.
**** Gibberbot
Install [[https://f-droid.org/][F-Droid]]
Search for and install Gibberbot, otherwise known as ChatSecure.
From the menu open *Accounts*
Select *Add account*
Change the server port from 0 to 5222
Done
Accept unknown certificate? Select *Always*
Go back to the initial screen and then using the menu you can add contacts and begin chatting.
** Social Networking
#+BEGIN_VERSE
/Facebook is not your friend, it is a surveillance engine./
-- Richard Stallman, Free Software Foundation
#+END_VERSE
*** Friendica
**** Installation
See [[Setting up a web site]] for details of how to update the Apache configuration for your Friendica site. You should have a separate domain name specifically to run Friendica on. It can't be installed in a subdirectory on a domain used for something else.
Edit your Apache configuration and disable the port 80 (HTTP) version of the site. We only want to log into Friendica via HTTPS, so to prevent anyone from accidentally logging in insecurely:
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/mydomainname.com
#+END_SRC
Within the section which begins with ** change the following:
#+BEGIN_SRC: bash
deny from all
#+END_SRC
Save and exit, then restart the apache server.
#+BEGIN_SRC: bash
service apache2 restart
#+END_SRC
Now install some dependencies.
#+BEGIN_SRC: bash
apt-get install mysql-server php5-common php5-cli php5-curl php5-gd php5-mysql php5-mcrypt
#+END_SRC
Enter an admin password for MySQL.
Create a mysql database.
#+BEGIN_SRC: bash
mysql -u root -p
create database friendica;
CREATE USER 'friendicaadmin'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON friendica.* TO 'friendicaadmin'@'localhost';
quit
#+END_SRC
You may need to fix Git SSL problems.
#+BEGIN_SRC: bash
git config --global http.sslVerify true
apt-get install ca-certificates
cd ~/
emacs .gitconfig
#+END_SRC
The .gitconfig file should look something like this:
#+BEGIN_SRC: bash
[http]
sslVerify = true
sslCAinfo = /etc/ssl/certs/ca-certificates.crt
[user]
email = myusername@mydomainname.com
name = yourname
#+END_SRC
Get the source code.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
cd /var/www/$HOSTNAME
mv htdocs htdocs_old
git clone https://github.com/friendica/friendica.git htdocs
chmod -R 755 htdocs
chown -R www-data:www-data htdocs
chown -R www-data:www-data htdocs/view/smarty3
git clone https://github.com/friendica/friendica-addons.git htdocs/addon
#+END_SRC
Now visit the URL of your site and you should be taken through the rest of the installation procedure. If you have trouble with "allow override" ensure that "AllowOverride" is set to "all" in your Apache settings for the site (within /etc/apache2/sites-available) and then restart the apache2 service.
Install the poller.
#+BEGIN_SRC: bash
emacs /etc/crontab
#+END_SRC
and append the following, changing mydomainname.com to whatever your domain is.
#+BEGIN_SRC: bash
*/10 * * * * root cd /var/www/mydomainname.com/htdocs; /usr/bin/timeout 120 /usr/bin/php include/poller.php
#+END_SRC
Save and exit, then restart cron.
#+BEGIN_SRC: bash
service cron restart
#+END_SRC
You can improve the speed of Friendica database searches by adding the following indexes:
#+BEGIN_SRC: bash
mysql -u root -p
use friendica;
CREATE INDEX `uri_received` ON item(`uri`, `received`);
CREATE INDEX `received_uri` ON item(`received`, `uri`);
CREATE INDEX `contact-id_created` ON item(`contact-id`, created);
CREATE INDEX `uid_network_received` ON item(`uid`, `network`, `received`);
CREATE INDEX `uid_parent` ON item(`uid`, `parent`);
CREATE INDEX `uid_received` ON item(`uid`, `received`);
CREATE INDEX `uid_network_commented` ON item(`uid`, `network`, `commented`);
CREATE INDEX `uid_title` ON item(uid, `title`);
CREATE INDEX `created_contact-id` ON item(`created`, `contact-id`);
quit
#+END_SRC
Make sure that Friendica doesn't use too much memory.
#+BEGIN_SRC: bash
emacs /var/www/$HOSTNAME/htdocs/.htaccess
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
php_value memory_limit 32M
#+END_SRC
The save ane exit.
**** Backups
Make sure that the database gets backed up. By using cron if anything goes wrong then you should be able to recover the database either from the previous day or the previous week.
#+BEGIN_SRC: bash
emacs /etc/cron.daily/friendicabackup
#+END_SRC
Enter the following
#+BEGIN_SRC: bash
#!/bin/sh
MYSQL_PASSWORD=
umask 0077
# Backup the database
mysqldump --password=$MYSQL_PASSWORD friendica > /var/backups/friendica_daily.sql
# Make the backup readable only by root
chmod 600 /var/backups/friendica_daily.sql
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod 600 /etc/cron.daily/friendicabackup
chmod +x /etc/cron.daily/friendicabackup
emacs /etc/cron.weekly/friendicabackup
#+END_SRC
Enter the following
#+BEGIN_SRC: bash
#!/bin/sh
MYSQL_PASSWORD=
umask 0077
# Backup the database
mysqldump --password=$MYSQL_PASSWORD friendica > /var/backups/friendica_weekly.sql
# Make the backup readable only by root
chmod 600 /var/backups/friendica_weekly.sql
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod 600 /etc/cron.weekly/friendicabackup
chmod +x /etc/cron.weekly/friendicabackup
#+END_SRC
**** Recommended configuration
***** Admin
To get to the admin settings you will need to be logged in with the admin email address which you specified at the beginning of the installation procedure. Depending upon the theme which you're using "/admin/" will be available either as an icon or on a drop down menu.
Under the *plugins* section the main one which you may wish to enable is the NSFW plugin. With that enabled if a post contans the #NSFW tag then it will appear minimised by default and you will need to click a button to open it.
Under the *themes* section select a few themes, including mobile themes which are suitable for phones or tablets.
Under the *site* section give your Friendica node a name other than "/my friend network/", you can change the icon and banner text and set the default mobile theme typically to /frost-mobile/. If you don't want your node to host a lot of accounts for people you don't know then you may want to set the register policy to "/requires approval/". For security it's probably a good idea only to host accounts for people who you actually know, rather than random strangers. Also be aware that the Beaglebone does not have a great deal of computational power or bandwidth and will not function well if there are hundreds of users using your node. If you're not federating with Diaspora or other sites then you may wish to select "/only allow Friendica contacts/". That improves the security of the system, since communication between Friendica nodes is always encrypted separately and in addition to the usual SSL encryption layer - which makes life interesting for the Surveillance State and at least keeps those cryptanalysts employed.
It's probably a good idea to enable "/private posts by default for new users/" and also "/don't include post content in email notifications/". Since traditional email isn't a secure system and is easily vulnerable to attack by systems such as [[https://en.wikipedia.org/wiki/XKeyscore][Xkeyscore]].
***** Settings
Each user has their own customisable settings, typically available either via an icon or by an entry on a drop down menu.
Under *additional features* enable "/richtext editor/", "/post preview/", "/group filter/", "/network filter/", "/edit sent posts/" and "/dislike posts/".
Under *display settings* select your desktop and mobile themes.
Once you have connected to enough friends it's also a good idea to use the "/export personal data/" option from here. This will save a file to your local system, which you can import into another friendica node if necessary.
**** To access from an Android device
***** App
Open a browser on your device and go to https://f-droid.org/ then download and install the F-Droid apk. If you then open F-Droid you can search for and install the Friendica app.
If you are using a self-signed certificate then at the login screen scroll down to the bottom, select the SSL settings then scroll down and disable SSL certificate checks. You will then be able to log in using https, which at least gives you some protection via the encryption.
More information about the Friendica app can be found on http://friendica-for-android.wiki-lab.net/
***** Mobile Theme
Another way to access Friendica from a mobile device is to just use the web browser. If you have selected a mobile theme within your settings then when viewing from an Android system the mobile theme will be displayed.
*** Movim
#+BEGIN_VERSE
/The way we communicate with others and with ourselves ultimately determines the quality of our lives/
-- Anthony Robbins
#+END_VERSE
Movim is another social networking system based around the XMPP protocol.
You will need to have previously [[Install a Jabber/XMPP server][installed the Jabber/XMPP server]].
Edit your Apache configuration and disable the port 80 (HTTP) version of the site. We only want to log into Movim via HTTPS, so to prevent anyone from accidentally logging in insecurely:
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/mydomainname.com
#+END_SRC
Within the section which begins with ** add the following:
#+BEGIN_SRC: bash
deny from all
#+END_SRC
Within the section which begins with ** add the following:
#+BEGIN_SRC: bash
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
#+END_SRC
Save and exit, then restart the apache server.
#+BEGIN_SRC: bash
service apache2 restart
#+END_SRC
Download the source.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/movim.tar.gz
#+END_SRC
Verify it.
#+BEGIN_SRC: bash
sha256sum movim.tar.gz
2740ddbedf6cefcc2934759374376643b6cdea4fb7f944ec25098a6868cb499e movim.tar.gz
#+END_SRC
Install it.
#+BEGIN_SRC: bash
tar -xzvf movim.tar.gz
export HOSTNAME=mydomainname.com
cp -r movim-* /var/www/$HOSTNAME/htdocs/movim
chmod 755 /var/www/$HOSTNAME/htdocs/movim
chown -R www-data:www-data /var/www/$HOSTNAME/htdocs/movim
#+END_SRC
Install some MySql prerequisites.
#+BEGIN_SRC: bash
apt-get install mysql-server php5-common php5-cli php5-curl php5-gd php5-mysql php5-mcrypt
#+END_SRC
If necessary, enter an admin password for MySQL.
Create a mysql database.
#+BEGIN_SRC: bash
mysql -u root -p
create database movim;
CREATE USER 'movimadmin'@'localhost' IDENTIFIED BY 'movimadminpassword';
GRANT ALL PRIVILEGES ON movim.* TO 'movimadmin'@'localhost';
quit
#+END_SRC
With a web browser navigate to:
https://mydomainname.com/movim/admin
Enter /admin/ as the username and /password/ as the password.
Click on /General Settings/ and alter the administrator username to /movimadmin/ and password to some long random string (using a password manager such as KeepassX).
Change the /Environment/ from /Development/ to /Production/.
The /BOSH URL/ should be http://localhost:5280/http-bind (TODO: should this be https://localhost:5281/http-bind and if so do certificate warnings need to be disabled?)
Click /Submit/ followed by /Resend/.
Click on /Database Settings/ and alter the MySql movim database username to /movimadmin/ and password to the password you specified in the previous step.
Click /Submit/ followed by /Resend/. If you get a lot of orange warnings about database fields being created then hit /Submit/ again until you see "Movim database is up to date".
If everything on all three tabs looks green then you are ready to go. Click on the Movim logo at the top left and then log in with your Jabber ID (JID).
*** Red Matrix
**** Introduction
Red Matrix is the current version of the Friendica social networking system. It's more general than Friendica in that it's designed as a generic communication system based around a protocol called "zot". At the time of writing in early 2014 Red Matrix remains at an alpha stage of development and so it's not advised that you install it unless you're willing to put up with bugs and frustrations. In the large majority of cases it's better to stick with Friendica for now.
**** Prerequisites
The main problem with Red Matrix is that in order to install it you will need to have purchased a domain name (i.e. not a FreeDNS subdomain) and a SSL certificate for it.
You could join some other Red Matrix server, but this suffers from "/The Levison Problem/" in which some goons show up with a gagging order demanding coppies of the SSL private key. In that scenario unless the owner of the server is exceptionally brave users may never be informed that the site has been compromised or that there is interception hardware attached to the server. Joining another server defeats the object of being digitally self-sufficient and raises legal question marks about the ownership of data which you might upload to a server which doesn't belong to you.
**** Installation
See [[Setting up a web site]] for details of how to update the Apache configuration for your Red Matrix site. You should have a separate domain name specifically to run Red Matrix on. It can't be installed in a subdirectory on a domain used for something else.
Edit your Apache configuration and disable the port 80 (HTTP) version of the site. We only want to log into Red Matrix via HTTPS, so to prevent anyone from accidentally logging in insecurely:
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/mydomainname.com
#+END_SRC
Within the section which begins with ** change the following:
#+BEGIN_SRC: bash
deny from all
#+END_SRC
Save and exit, then restart the apache server.
#+BEGIN_SRC: bash
service apache2 restart
#+END_SRC
Now install some dependencies.
#+BEGIN_SRC: bash
apt-get install mysql-server php5-common php5-cli php5-curl php5-gd php5-mysql php5-mcrypt
#+END_SRC
Enter an admin password for MySQL.
Create a mysql database.
#+BEGIN_SRC: bash
mysql -u root -p
create database redmatrix;
CREATE USER 'redmatrixadmin'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON redmatrix.* TO 'redmatrixadmin'@'localhost';
quit
#+END_SRC
You may need to fix Git SSL problems.
#+BEGIN_SRC: bash
git config --global http.sslVerify true
apt-get install ca-certificates
cd ~/
emacs .gitconfig
#+END_SRC
The .gitconfig file should look something like this:
#+BEGIN_SRC: bash
[http]
sslVerify = true
sslCAinfo = /etc/ssl/certs/ca-certificates.crt
[user]
email = myusername@mydomainname.com
name = yourname
#+END_SRC
Get the source code.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
cd /var/www/$HOSTNAME
mv htdocs htdocs_old
git clone https://github.com/friendica/red.git htdocs
chmod -R 755 htdocs
chown -R www-data:www-data htdocs
mkdir htdocs/view/tpl/smarty3
chmod 777 htdocs/view/tpl
chmod 777 htdocs/view/tpl/smarty3
git clone https://github.com/friendica/red-addons.git htdocs/addon
#+END_SRC
Now visit the URL of your site and you should be taken through the rest of the installation procedure. Note that this may take a few minutes so don't be concerned if it looks as if it has crashed - just leave it running. If you have trouble with "allow override" ensure that "AllowOverride" is set to "all" in your Apache settings for the site (within /etc/apache2/sites-available) and then restart the apache2 service.
Install the poller.
#+BEGIN_SRC
emacs /etc/crontab
#+END_SRC
and append the following, changing mydomainname.com to whatever your domain is.
#+BEGIN_SRC
*/10 * * * * root cd /var/www/mydomainname.com/htdocs; /usr/bin/php include/poller.php
#+END_SRC
Save and exit, then restart cron.
#+BEGIN_SRC: bash
service cron restart
#+END_SRC
**** Backups
Make sure that the database gets backed up. By using cron if anything goes wrong then you should be able to recover the database either from the previous day or the previous week.
#+BEGIN_SRC: bash
emacs /etc/cron.daily/redmatrixbackup
#+END_SRC
Enter the following
#+BEGIN_SRC: bash
#!/bin/sh
MYSQL_PASSWORD=
umask 0077
# Backup the database
mysqldump --password=$MYSQL_PASSWORD redmatrix > /var/backups/redmatrix_daily.sql
# Make the backup readable only by root
chmod 600 /var/backups/redmatrix_daily.sql
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod 600 /etc/cron.daily/redmatrixbackup
chmod +x /etc/cron.daily/redmatrixbackup
emacs /etc/cron.weekly/redmatrixbackup
#+END_SRC
Enter the following
#+BEGIN_SRC: bash
#!/bin/sh
MYSQL_PASSWORD=
umask 0077
# Backup the database
mysqldump --password=$MYSQL_PASSWORD redmatrix > /var/backups/redmatrix_weekly.sql
# Make the backup readable only by root
chmod 600 /var/backups/redmatrix_weekly.sql
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod 600 /etc/cron.weekly/redmatrixbackup
chmod +x /etc/cron.weekly/redmatrixbackup
#+END_SRC
**** To access from an Android device
***** App
Open a browser on your device and go to https://f-droid.org/ then download and install the F-Droid apk. If you then open F-Droid you can search for and install the Friendica app.
If you are using a self-signed certificate then at the login screen scroll down to the bottom, select the SSL settings then scroll down and disable SSL certificate checks. You will then be able to log in using https, which at least gives you some protection via the encryption.
More information about the Friendica app can be found on http://friendica-for-android.wiki-lab.net/
** Install Gopher
*** Server setup
Gopher is an old internet protocol which originated a few years before the web and is purely text based. It can be quite fun to build a gopher site and browse the gopherverse. One thing to keep in mind is that there is no security with gopher, so any text transmitted is trivially interceptable by systems such as [[https://en.wikipedia.org/wiki/XKeyscore][Xkeyscore]] or deep packet inspection.
To set up a gopher server:
#+BEGIN_SRC: bash
apt-get install build-essential
cd /tmp
wget http://freedombone.uk.to/geomyidae-current.tgz
#+END_SRC
Verify the download:
#+BEGIN_SRC: bash
sha256sum geomyidae-current.tgz
162f55ab059ab0a9be8e840497795293bbd51c34b1f4564dcdf3f0ddd5c0db31 geomyidae-current.tgz
#+END_SRC
Then extract and install it.
#+BEGIN_SRC: bash
tar -xzvf geomyidae-current.tgz
cd geomyidae-*
make
make install
mkdir -p /var/gopher
#+END_SRC
Your content should be placed within /var/gopher with the index page being named index.gph. The Gopher format is very simple - simpler than HTML - so creating pages is not much more difficult than editing a text file.
#+BEGIN_SRC: bash
emacs /etc/init.d/gopher
#+END_SRC
Enter the following:
#+BEGIN_SRC: bash
#! /bin/sh
### BEGIN INIT INFO
# Provides: gopher
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Gopher daemon
# Description: Gopher daemon
### END INIT INFO
# Do NOT "set -e"
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Gopher daemon"
NAME=geomyidae
DAEMON=/usr/bin/$NAME
DAEMON_ARGS="-l /var/log/geomyidae.log -b /var/gopher -p 70"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
|| return 1
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
$DAEMON_ARGS \
|| return 2
# Add code here, if necessary, that waits for the process to be ready
# to handle requests from services started subsequently which depend
# on this one. As a last resort, sleep for some time.
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
# Wait for children to finish too if this is a daemon that forks
# and if the daemon is only ever run from this initscript.
# If the above conditions are not satisfied then add some other code
# that waits for the process to drop all resources that could be
# needed by services started subsequently. A last resort is to
# sleep for some time.
start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
[ "$?" = 2 ] && return 2
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
return "$RETVAL"
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
#
# If the daemon can reload its configuration without
# restarting (for example, when it is sent a SIGHUP),
# then implement that here.
#
start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
return 0
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
#reload|force-reload)
#
# If do_reload() is not implemented then leave this commented out
# and leave 'force-reload' as an alias for 'restart'.
#
#log_daemon_msg "Reloading $DESC" "$NAME"
#do_reload
#log_end_msg $?
#;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
exit 3
;;
esac
:
#+END_SRC
Save and exit. Then start the gopher service.
#+BEGIN_SRC: bash
chmod +x /etc/init.d/gopher
update-rc.d gopher defaults
service gopher start
#+END_SRC
On your internet router change the firewall settings to route port 70 to the BBB, then provided that you have a gopher plugin installed within your browser then you should be able to navigate to your gopher site with:
#+BEGIN_SRC: bash
gopher://mydomainname.com
#+END_SRC
There is a browser addon for Gopher called "overbite". Installing that should enable you to view your site.
*** A phlogging script
A phlog is the gopher equivalent of a blog on the web. You can create a script which makes phlogging easy.
#+BEGIN_SRC: bash
emacs /usr/bin/mkphlog
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
#!/bin/sh
# mkphlog - a utility to ease the creation of phlogs.
# Organizes phlog posts in separate directories.
# Created by octotep; anyone can distribute, modify, and
# share this file however they please.
#
# Version 0.3
#
# Modified by Bob Mottram
#
# Please note, all date strings are in the form of mm/dd/yy(yy)
# The base of the entire gopher site.
gopherRoot="/var/gopher"
# The name of the phlog directory (contained in $gopherHome)
phlogDirName="phlog"
# Default editor, unless the user has one specified in env
editor=${EDITOR:-emacs}
# Default timezone, unless the user has one specified in env
TZ=${TZ:-UTC}
# Tells the script how many lines the title of the main page spans.
# Used to insert the newest post at the top.
# Titles created by mkphlog are 3 lines.
# Isn't used if $addTitleToMain is false
titleLineCount=3
entryDate=`date +%Y-%m-%d`
# Creates the phlog directory if it dosen't already exist.
CreatePhlogDir() {
mkdir $phlogDirName
chmod 755 $phlogDirName
cd $phlogDirName
echo "Phlog directory created."
}
# Updates the main phlog listing
UpdatePhlogListing() {
# Just in case the user didn't specify a title
if [ "$postTitleAns" = "" ] ; then
echo -n "Do you want to create a blank post? (y/n) "
read blankPostAns
case $blankPostAns in
y* | Y* ) $postTitleAns="New Post" ;;
n* | N* ) echo "Goodbye, then." ; exit 1 ;;
* ) exit 1 ;;
esac
fi
cd $gopherRoot/$phlogDirName/
title2=$(echo "${postTitleAns}" | tr " " _)
postfilename="${entryDate}_${title2}.txt"
touch ${postfilename}
echo $postTitleAns >> ${postfilename}
date "+%A %b %e %l:%M:%S %Y" >> ${postfilename}
echo "------------------------------" >> ${postfilename}
echo >> ${postfilename}
}
if [ -d $gopherRoot ] ; then
cd $gopherRoot
else
echo "You don't have a gopherspace set-up. Please run the gopher server setup instructions."
exit 1
fi
if [ -d $phlogDirName ] ; then
cd $phlogDirName
else
echo -n "Do you want to create a phlog directory? (y/n) "
read phlogDirAns
case $phlogDirAns in
y* | Y* ) CreatePhlogDir ;;
n* | N* ) exit 1 ;;
* ) exit 1 ;;
esac
fi
echo -n "Would you like to create a phlog entry for today? (y/n) "
read phlogAns
case $phlogAns in
y* | Y* ) echo "Creating today's phlog entry..." ;;
n* | N* ) exit 0 ;;
* ) exit 1 ;;
esac
# Make sure there isn't a post for that day, lest we overwrite it.
if [ ! -d $entryDate ]; then
echo -n "Title: "
read postTitleAns
title2=$(echo "${postTitleAns}" | tr " " _)
postfilename="${entryDate}_${title2}.txt"
touch ${postfilename}
chmod 644 ${postfilename}
UpdatePhlogListing
echo -n "Would you like to edit the post with $editor? (y/n) "
read editorAns
case $editorAns in
y* | Y* ) $editor $gopherRoot/$phlogDirName/${postfilename} ;;
n* | N* ) exit 0 ;;
* ) exit 0 ;;
esac
rm $gopherRoot/$phlogDirName/${postfilename}~
else
echo "There is already a post for today."
echo -n "Would you like to edit the post with $editor? (y/n) "
read editorAns
case $editorAns in
y* | Y* ) $editor $gopherRoot/$phlogDirName/$entryDate*.txt ;;
n* | N* ) exit 0 ;;
* ) exit 1 ;;
esac
rm $gopherRoot/$phlogDirName/${postfilename}.txt~
fi
exit 0
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chmod +x /usr/bin/mkphlog
#+END_SRC
Now entering the command /mkphlog/ will allow you to create a phlog entry.
** Install Owncloud
#+BEGIN_VERSE
/It's not water vapour/
-- Larry Ellison
#+END_VERSE
Owncloud will allow you to upload and download files, share photos, collaboratively edit documents, have a calendar and more. You should be warned that Owncloud runs quite slowly via an ordinary web browser, but it can be a convenient way to access and share your data from any location in a reasonably secure manner.
*** Server Installation
Install some dependencies:
#+BEGIN_SRC: bash
apt-get install apache2 php5 php5-gd php-xml-parser php5-intl
apt-get install php5-sqlite php5-mysql smbclient curl libcurl3 php5-curl
#+END_SRC
It's very important that /mod_php5/ and not /mod_php5filter/ be installed. If you have /mod_php5filter/ installed then Owncloud will always fail to install.
#+BEGIN_SRC: bash
a2dismod php5filter
apt-get install libapache2-mod-php5
#+END_SRC
Ensure that the size of files which may be uploaded or downloaded is large enough.
#+BEGIN_SRC: bash
emacs /etc/php5/apache2/php.ini
#+END_SRC
Set the following:
#+BEGIN_SRC: bash
upload_max_filesize = 512M
post_max_size = 512M
#+END_SRC
Save and exit, then edit your Apache configuration.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
And add the following, to the 443 VirtualHost section. Really we only will want to be using Owncloud with HTTPS to ensure some level of security and avoidance of dragnet surveillance.
#+BEGIN_SRC: bash
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
#+END_SRC
To ensure that nobody logs in insecurely add the following to the 80 VirtualHost section.
#+BEGIN_SRC: bash
deny from all
#+END_SRC
Save and exit, then restart apache.
#+BEGIN_SRC: bash
service apache2 restart
#+END_SRC
Download owncloud.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/owncloud.tar.bz2
#+END_SRC
Verify the download:
#+BEGIN_SRC: bash
sha256sum owncloud.tar.bz2
92b53fdfa7c4165b83dd2f8447f63928454a5815d08ff2d6165dd1a8969ecbe1 owncloud.tar.bz2
#+END_SRC
Extract the archive. This may take a couple of minutes, so don't be alarmed that the system has crashed.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
tar -xjf owncloud.tar.bz2
#+END_SRC
Move the extracted files to your site and set file permissions.
#+BEGIN_SRC: bash
cp -r owncloud /var/www/$HOSTNAME/htdocs
chown -R www-data:www-data /var/www/$HOSTNAME/htdocs/owncloud/apps
chown -R www-data:www-data /var/www/$HOSTNAME/htdocs/owncloud/config
chown www-data:www-data /var/www/$HOSTNAME/htdocs/owncloud
#+END_SRC
Edit the htaccess file for Owncloud.
#+BEGIN_SRC: bash
emacs /var/www/$HOSTNAME/htdocs/owncloud/.htaccess
#+END_SRC
Set the following.
#+BEGIN_SRC: bash
php_value upload_max_filesize 512M
php_value post_max_size 512M
php_value memory_limit 32M
#+END_SRC
Save and exit.
With a web browser visit your domain (mydomainname.com/owncloud) and enter an administrator username and password.
*** Owncloud on Android
First install [[https://f-droid.org/][F-Droid]] and then search for the current Owncloud app. Once it's installed you'll then be able to log into the BBB with the URL https://mydomainname.com/opencloud, supplying your username and password.
** Install a Wiki
#+BEGIN_VERSE
/I believe that technology can liberate, but you need to be a master rather than a user. You need to pull technology apart and master it rather than letting it control you./
-- Tom Barbalet
#+END_VERSE
Dokuwiki is based upon flat files, and so is easy to move from one server to another without a lot of database complications.
Download the wiki.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/dokuwiki.tgz
#+END_SRC
Verify it.
#+BEGIN_SRC: bash
sha256sum dokuwiki.tgz
6b126f90979463d9ddaa74acc6f96aa230cfdc789946f241c3646086d9574be8 dokuwiki.tgz
#+END_SRC
Then extract and install it.
#+BEGIN_SRC: bash
export HOSTNAME=mywikidomainname.com
tar -xzvf dokuwiki.tgz
mv /var/www/$HOSTNAME/htdocs /var/www/$HOSTNAME/htdocs_old
mv dokuwiki /var/www/$HOSTNAME/htdocs
#+END_SRC
Edit the Apache configuration for your wiki site.
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
The settings should look something like the following. Replace /mywikidomainname.com/ with your wiki domain name.
#+BEGIN_SRC: bash
ServerAdmin myusername@mywikidomainname.com
ServerName mydomainname.com
DocumentRoot /var/www/mywikidomainname.com/htdocs
order deny,allow
allow from all
order allow,deny
deny from all
satisfy all
Options FollowSymLinks
AllowOverride All
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
AllowOverride All
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel error
CustomLog ${APACHE_LOG_DIR}/access.log combined
ServerAdmin myusername@mywikidomainname.com
ServerName mywikidomainname.com
DocumentRoot /var/www/mywikidomainname.com/htdocs
order deny,allow
allow from all
order allow,deny
deny from all
satisfy all
Options FollowSymLinks
AllowOverride All
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
AllowOverride All
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel error
CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined
# SSL Engine Switch:
# Enable/Disable SSL for this virtual host.
SSLEngine on
# A self-signed certificate
SSLCertificateFile /etc/ssl/certs/mydomainname.com.crt
SSLCertificateKeyFile /etc/ssl/private/mydomainname.com.key
# Options based on bettercrypto.org
SSLProtocol All -SSLv2 -SSLv3
SSLHonorCipherOrder On
SSLCompression off
SSLCipherSuite EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA
# SSL Engine Options:
# Set various options for the SSL engine.
# o FakeBasicAuth:
# Translate the client X.509 into a Basic Authorisation. This means that
# the standard Auth/DBMAuth methods can be used for access control. The
# user name is the `one line' version of the client's X.509 certificate.
# Note that no password is obtained from the user. Every entry in the user
# file needs this password: `xxj31ZMTZzkVA'.
# o ExportCertData:
# This exports two additional environment variables: SSL_CLIENT_CERT and
# SSL_SERVER_CERT. These contain the PEM-encoded certificates of the
# server (always existing) and the client (only existing when client
# authentication is used). This can be used to import the certificates
# into CGI scripts.
# o StdEnvVars:
# This exports the standard SSL/TLS related `SSL_*' environment variables.
# Per default this exportation is switched off for performance reasons,
# because the extraction step is an expensive operation and is usually
# useless for serving static content. So one usually enables the
# exportation for CGI and SSI requests only.
# o StrictRequire:
# This denies access when "SSLRequireSSL" or "SSLRequire" applied even
# under a "Satisfy any" situation, i.e. when it applies access is denied
# and no other module can change it.
# o OptRenegotiate:
# This enables optimized SSL connection renegotiation handling when SSL
# directives are used in per-directory context.
#SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire
SSLOptions +StdEnvVars
SSLOptions +StdEnvVars
# SSL Protocol Adjustments:
# The safe and default but still SSL/TLS standard compliant shutdown
# approach is that mod_ssl sends the close notify alert but doesn't wait for
# the close notify alert from client. When you need a different shutdown
# approach you can use one of the following variables:
# o ssl-unclean-shutdown:
# This forces an unclean shutdown when the connection is closed, i.e. no
# SSL close notify alert is send or allowed to received. This violates
# the SSL/TLS standard but is needed for some brain-dead browsers. Use
# this when you receive I/O errors because of the standard approach where
# mod_ssl sends the close notify alert.
# o ssl-accurate-shutdown:
# This forces an accurate shutdown when the connection is closed, i.e. a
# SSL close notify alert is send and mod_ssl waits for the close notify
# alert of the client. This is 100% SSL/TLS standard compliant, but in
# practice often causes hanging connections with brain-dead browsers. Use
# this only for browsers where you know that their SSL implementation
# works correctly.
# Notice: Most problems of broken clients are also related to the HTTP
# keep-alive facility, so you usually additionally want to disable
# keep-alive for those clients, too. Use variable "nokeepalive" for this.
# Similarly, one has to force some clients to use HTTP/1.0 to workaround
# their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and
# "force-response-1.0" for this.
BrowserMatch "MSIE [2-6]" \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0
# MSIE 7 and newer should be able to use keepalive
BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
#+END_SRC
Enable your site with:
#+BEGIN_SRC: bash
a2ensite
#+END_SRC
then select the domain name and reload.
#+BEGIN_SRC: bash
service apache2 reload
#+END_SRC
and alter permissions:
#+BEGIN_SRC: bash
chmod -R 755 /var/www/$HOSTNAME/htdocs
chown -R www-data:www-data /var/www/$HOSTNAME/htdocs
#+END_SRC
Open a browser and visit http://$HOSTNAME/install.php, then fill out the details. Once everything has been accepted without errors:
#+BEGIN_SRC: bash
rm /var/www/$HOSTNAME/htdocs/install.php
#+END_SRC
Add a few extra mime types:
#+BEGIN_SRC: bash
emacs /var/www/$HOSTNAME/htdocs/conf/mime.conf
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
ogv video/ogg
mp4 video/mp4
webm video/webm
#+END_SRC
Save and exit.
If you need to be able to upload large files to the wiki then edit */etc/php5/apache2/php.ini* and set *upload_max_filesize* accordingly. If the directory */etc/php5/apache2* doesn't exist then you will need to install the package *libapache2-mod-php5*.
Now you can visit your wiki and begin editing.
** Install Bitmessage
#+BEGIN_VERSE
/Love your neighbour. Fight the future. If you are reading this you ARE the resistance./
-- BitChirp
#+END_VERSE
*** A new kind of Email
[[https://bitmessage.org][Bitmessage]] is a new type of messaging system intended to fulfill the same role as email, but without the security problems. In particular, Bitmessage attempts to not just encrypt the content but also the metadata. It's message broadcasting system makes it exceedingly difficult for an attacker to know which computer a message is destined for. The only way you know whether a message has been sent to you is whether you are able to decrypt it from the passing stream of messages.
Although similar to Bitcoin in some regards, such as "/proof of work/", Bitmessage has no block chain and messages are only buffered for approximately three days after which they are deleted from any given node.
Installing Bitmessage as a daemon will increase the size of the network, and therefore the level of security for all users.
*** The Daemon
Install from the current source code.
#+BEGIN_SRC: bash
apt-get install python screen
cd /tmp
git clone https://github.com/Bitmessage/PyBitmessage.git
cd PyBitmessage
make install
#+END_SRC
Now create the daemon.
#+BEGIN_SRC: bash
emacs /etc/init.d/pybitmessage
#+END_SRC
Add the following text:
#+BEGIN_SRC: bash
#!/bin/bash
# /etc/init.d/bitmessage
### BEGIN INIT INFO
# Provides: pybitmessage
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts bitmessage as a background daemon, suitable for servers
# Description: This file should be used to construct scripts to be
# placed in /etc/init.d.
### END INIT INFO
# Author: Super-Nathan
#Settings
SERVICE='pybitmessage'
LOGFILE='/dev/null' # this disables logging
# LOGFILE='/var/log/bitmessage.log' # comment out the above line and un-comment this line to save a log
COMMAND="python bitmessagemain.py > $LOGFILE"
USERNAME='bitmsg'
NICELEVEL=19 # from 0-19 the bigger the number, the less the impact on system resources
HISTORY=1024
PBM_LOCATION="/usr/local/share/pybitmessage"
INVOCATION="nice -n ${NICELEVEL} ${COMMAND}"
PATH='/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/core_perl:/sbin:/usr/sbin:/bin:/usr/local/share/pybitmessage'
bm_start() {
echo "Starting $SERVICE..."
cd ${PBM_LOCATION}
su --command "screen -h ${HISTORY} -dmS ${SERVICE} ${INVOCATION}" $USERNAME
}
bm_stop() {
echo "Stopping $SERVICE"
su --command "screen -p 0 -S ${SERVICE} -X stuff "'^C'"" $USERNAME
}
#Start-Stop here
case "$1" in
start)
bm_start
;;
stop)
bm_stop
;;
restart)
bm_stop
sleep 60s
bm_start
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
;;
esac
exit 0
#+END_SRC
Save and exit.
Add a user which will be specifically for Bitmessage. Since bitmessage is still a relatively young and experimental project, this adds further compartmentalisation such that if there are any bugs within PyBitmessage then an attacker can't neccessarily gain control of root or any other user account. Here we create a user called /bitmsg/ and give it a long random password.
#+BEGIN_SRC: bash
adduser bitmsg
#+END_SRC
Create a /keys.dat/ file which is used to configure Bitmessage.
#+BEGIN_SRC: bash
mkdir /home/bitmsg/.config
mkdir /home/bitmsg/.config/PyBitmessage
emacs /home/bitmsg/.config/PyBitmessage/keys.dat
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
[bitmessagesettings]
settingsversion = 7
port = 8444
timeformat = %%a, %%d %%b %%Y %%I:%%M %%p
blackwhitelist = black
startonlogon = false
minimizetotray = false
showtraynotifications = false
startintray = false
socksproxytype = none
sockshostname = localhost
socksport = 9050
socksauthentication = false
sockslisten = false
socksusername =
sockspassword =
keysencrypted = false
messagesencrypted = false
defaultnoncetrialsperbyte = 640
defaultpayloadlengthextrabytes = 14000
minimizeonclose = false
maxacceptablenoncetrialsperbyte = 0
maxacceptablepayloadlengthextrabytes = 0
userlocale = system
namecoinrpctype = namecoind
namecoinrpchost = localhost
namecoinrpcuser =
namecoinrpcpassword =
namecoinrpcport = 8336
sendoutgoingconnections = True
daemon = true
#+END_SRC
Save and exit. Then enable the daemon and run it.
#+BEGIN_SRC: bash
rm -f /tmp/-usr-local-share-pybitmessage-*.lock
chown -R bitmsg:bitmsg /home/bitmsg
chmod +x /etc/init.d/pybitmessage
update-rc.d pybitmessage defaults
service pybitmessage start
#+END_SRC
Now open port 8444 on your internet router or firewall and direct it to the BBB.
*** Using Bitmessage
Although in principle it would be possible to send Bitmessages directly from the BBB, in practice the /proof of work/ requirement would mean that it would take an infeasibly long time to send messages, and the computational workload would likely greatly impair the performance of other services also running on the system. So to send and receive Bitmessages it's better to just install the client on a laptop or desktop machine.
The easiest way to install the client is either to download it from [[https://bitmessage.org][bitmessage.org]] or to get the latest build from Github as follows:
#+BEGIN_SRC: bash
cd /tmp
git clone https://github.com/Bitmessage/PyBitmessage.git
cd PyBitmessage
make install
pybitmessage
#+END_SRC
*** Connect to Email
TODO: how to connect Bitmessage to an email client.
#+BEGIN_SRC: bash
cd /tmp
wget http://freedombone.uk.to/notbit.tar.gz
#+END_SRC
Verify it.
#+BEGIN_SRC: bash
sha256sum notbit.tar.gz
972fdc9cbb8034141282337dcd5e557bce57969ff6bd1d607da89bd93cc7bb68
#+END_SRC
Extract and install it.
#+BEGIN_SRC: bash
tar -xzvf notbit.tar.gz
cd notbit
apt-get install dh-autoreconf
./autogen.sh --prefix=/home/myusername
make
make install
#+END_SRC
** Overcome restrictive environments
#+BEGIN_VERSE
/Censorship reflects a society's lack of confidence in itself. It is a hallmark of an authoritarian regime./
-- Potter Stewart
#+END_VERSE
In some environments, such as behind corporate firewalls or under regimes hostile towards the idea of open access to knowledge and information you may find that you're not able to use tools such as /ssh/ to get access to the BBB. In the worst case all ports other than 80 and 443 may be blocked.
In that scenario you can use a tool called [[http://code.google.com/p/shellinabox/][shellinabox]] to log into your BBB via your web site rather than via a terminal. This means that you can administrate your system from any device which has a web browser and keyboard.
#+BEGIN_SRC: bash
apt-get install shellinabox libapache2-mod-proxy-html
#+END_SRC
Update your Apache configuration.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
Within the section which begins with ** add the following, replacing /mydomainname.com/ with your domain name and /myusername/ with your username.
#+BEGIN_SRC: bash
ProxyPass http://localhost:4200/
Order allow,deny
Allow from all
AuthName "Authentication for shellinabox"
AuthUserFile /home/mydomainname.com/public_html/.htpasswd
AuthGroupFile /home/mydomainname.com/public_html/.htgroup
AuthType Basic
Require group shellinabox
Require user myusername
#+END_SRC
Save and exit, then create a login password. It's recommended that the password be a long random string and that you then access it using a password manager such as KeepassX.
#+BEGIN_SRC: bash
mkdir /home/$HOSTNAME
mkdir /home/$HOSTNAME/public_html
htpasswd -c /home/$HOSTNAME/public_html/.htpasswd myusername
#+END_SRC
Create a user group.
#+BEGIN_SRC: bash
emacs /home/$HOSTNAME/public_html/.htgroup
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
shellinabox: myusername
#+END_SRC
Save and exit, then restart Apache.
#+BEGIN_SRC: bash
a2enmod proxy_http
service apache2 restart
#+END_SRC
Now with a web browser navigate to https://mydomainname.com/shell and log in.
If you're in a very locked down environment where access to web sites is severely restricted then as a last resort you may be able to use a command line browser, such as [[https://en.wikipedia.org/wiki/Lynx_%28web_browser%29][lynx]] from within /shellinabox/.
** Set up a mailing list
#+BEGIN_VERSE
/All over the world there are many people who are united in creating software, content, and culture that is freely available for others to share, enjoy and enrich their lives. Together we believe that freedom is good. We believe it helps people do good things, make better choices, and lead safer and more secure lives. Together we are a community united by this belief./
-- Jono Bacon
#+END_VERSE
*** With Email
Email mailing lists are old skool but still remain as a common and easy way of communicating on the internet. If you're running a public organisation such as an open source project or community group then you may want to set one up.
**** Installation
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
apt-get install mailman
newlist mailman
#+END_SRC
Enter an email address for the list administrator and a password.
#+BEGIN_SRC: bash
emacs /etc/mailman/mm_cfg.py
#+END_SRC
Set *MTA=None* and change *http:* to *https:*, then save and exit.
Add some settings.
#+BEGIN_SRC: bash
emacs /etc/exim4/conf.d/main/04_mailman_options
#+END_SRC
Add the following, replacing /mydomainname.com/ with your domain name.
#+BEGIN_SRC: bash
# Mailman macro definitions
# Home dir for the Mailman installation
MM_HOME=/var/lib/mailman
# User and group for Mailman
MM_UID=list
MM_GID=list
#
# Domains that your lists are in - colon separated list
# you may wish to add these into local_domains as well
domainlist mm_domains=mydomainname.com
# The path of the Mailman mail wrapper script
MM_WRAP=MM_HOME/mail/mailman
#
# The path of the list config file (used as a required file when
# verifying list addresses)
MM_LISTCHK=MM_HOME/lists/${lc::$local_part}/config.pck
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/exim4/conf.d/main/000_localmacros
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
SYSTEM_ALIASES_PIPE_TRANSPORT = address_pipe
SYSTEM_ALIASES_USER = list
SYSTEM_ALIASES_GROUP = list
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/exim4/conf.d/acl/30_exim4-config_check_rcpt
#+END_SRC
Append the following, before the final /accept/:
#+BEGIN_SRC: bash
# Do callback verification unless Mailman incoming bounce
deny !local_parts = *-bounces : *-bounces+*
!verify = sender/callout=30s,defer_ok
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs
/etc/exim4/conf.d/router/450_mailman_aliases
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
mailman_router:
driver = accept
domains = +mm_domains
require_files = MM_LISTCHK
local_part_suffix_optional
local_part_suffix = -admin : \
-bounces : -bounces+* : \
-confirm : -confirm+* : \
-join : -leave : \
-owner : -request : \
-subscribe : -unsubscribe
transport = mailman_transport
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/exim4/conf.d/transport/40_mailman_pipe
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
mailman_transport:
driver = pipe
command = MM_WRAP \
'${if def:local_part_suffix \
{${sg{$local_part_suffix}{-(\\w+)(\\+.*)?}{\$1}}} \
{post}}' \
$local_part
current_directory = MM_HOME
home_directory = MM_HOME
user = MM_UID
group = MM_GID
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
chown root:list /var/lib/mailman/mail/mailman
update-exim4.conf.template -r
update-exim4.conf
service exim4 restart
emacs /etc/apache2/conf.d/mailman
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
Alias /pipermail /var/lib/mailman/archives/public
Alias /images/mailman /usr/share/images/mailman
DirectoryIndex index.html
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
Add the following to the 443 section.
#+BEGIN_SRC: bash
Options Indexes FollowSymLinks MultiViews
Order allow,deny
Allow from all
RedirectMatch ^/$ /cgi-bin/mailman/listinfo
#+END_SRC
Save and exit.
#+BEGIN_SRC: bash
service apache2 restart
#+END_SRC
Now add your mailing list. The list name should not include any spaces.
#+BEGIN_SRC: bash
newlist mymailinglistname
#+END_SRC
With a browser visit https://$HOSTNAME/cgi-bin/mailman/admin/mymailinglistname to configure the mailing list.
Under *General Options* add an email address for a moderator (could be the same as the administrator) and click *Submit your changes*.
Under *Privacy Options* set steps required for subscription to *Confirm and approve* and click *Submit your changes*.
Also change these settings for the account within https://$HOSTNAME/cgi-bin/mailman/admin/mailman
#+BEGIN_SRC: bash
emacs /etc/aliases
#+END_SRC
Append the following, replacing /mymailinglistname/ with your mailing list name:
#+BEGIN_SRC: bash
mymailinglistname: "|/var/lib/mailman/mail/mailman post mymailinglistname"
mymailinglistname-admin: "|/var/lib/mailman/mail/mailman admin mymailinglistname"
mymailinglistname-bounces: "|/var/lib/mailman/mail/mailman bounces mymailinglistname"
mymailinglistname-confirm: "|/var/lib/mailman/mail/mailman confirm mymailinglistname"
mymailinglistname-join: "|/var/lib/mailman/mail/mailman join mymailinglistname"
mymailinglistname-leave: "|/var/lib/mailman/mail/mailman leave mymailinglistname"
mymailinglistname-owner: "|/var/lib/mailman/mail/mailman owner mymailinglistname"
mymailinglistname-request: "|/var/lib/mailman/mail/mailman request mymailinglistname"
mymailinglistname-subscribe: "|/var/lib/mailman/mail/mailman subscribe mymailinglistname"
mymailinglistname-unsubscribe: "|/var/lib/mailman/mail/mailman unsubscribe mymailinglistname"
#+END_SRC
Save and exit. Then to test that the mailing list works:
#+BEGIN_SRC: bash
exim -d+route -bt mymailinglistname@$HOSTNAME
#+END_SRC
If everything is working then this shouldn't show any problems.
**** Using the mailing list
Direct subscribers towards:
#+BEGIN_SRC: bash
https://mydomainname.com/cgi-bin/mailman/listinfo/mymailinglistname
#+END_SRC
To administrate the list visit:
#+BEGIN_SRC: bash
https://mydomainname.com/cgi-bin/mailman/admin/mymailinglistname
#+END_SRC
To add another mailing list:
#+BEGIN_SRC: bash
newlist mymailinglistname
#+END_SRC
To delete a mailing list:
#+BEGIN_SRC: bash
rmlist -a mymailinglistname
#+END_SRC
*** With Bitmessage
On your local machine (not the BBB) you can make a private mailing list which is difficult to censor and where there is no single point of failure. This type of mailing list is known as a "chan".
On a Debian based system:
#+BEGIN_SRC: bash
sudo apt-get install makepasswd
#+END_SRC
or on an RPM based system:
#+BEGIN_SRC: bash
sudo yum install makepasswd
#+END_SRC
Create a name for your mailing list. This will be a random string.
#+BEGIN_SRC: bash
makepasswd -c 40
#+END_SRC
Keep a note of this.
Run the Bitmessage client and on the menu select *File/Join-Create Chan/Create new chan*
Enter the random string which you created as the name of the mailing list. Also take a note of the BM address which is created.
You can hand out the random string used to generate the mailing list and its corresponding BM address to fellow members, either within a bitmessage or on paper or via [[https://en.wikipedia.org/wiki/Sneakernet][sneakernet]] or in a GPG/PGP encrypted email or via an XMPP+OTR or Friendica private message. Once others have those two pieces of data then they will be able to join.
To make the list easier to identify, rather than just appearing as a random string, then under the *Your Identities* tab right click on it and select *Set Avatar* and assign a suitable icon.
The disadvantage of this type of mailing list is that it's not possible for any one participant to act as a list moderator, or in other words each participant must do their own moderation. That's ok if the size of the group is small, but if it's larger then anyone spamming or trolling the list can make things miserable for the others.
** Install Tripwire
#+BEGIN_VERSE
/...by the time you get done with all of that, we have a freedom box/
-- Eben Moglen
#+END_VERSE
Tripwire will try to detect any intrusions into your system. It's a good idea to install it after you have installed all of the other programs which you intend to use.
#+BEGIN_SRC: bash
apt-get install tripwire
export HOSTNAME=mydomainname.com
cd /etc/tripwire
cp arm-local.key $HOSTNAME-local.key
cp site.key $HOSTNAME-site.key
tripwire --init
tripwire --update-policy --secure-mode low /etc/tripwire/twpol.txt
tripwire --check --interactive
#+END_SRC
you will be asked for two passphrases ("site" and "local"). Make a note of these.
Turn off reporting of changes to system logs.
#+BEGIN_SRC: bash
emacs /etc/tripwire/twcfg.txt
#+END_SRC
Set *SYSLOGREPORTING* to false and comment out the line, then save and exit.
#+BEGIN_SRC: bash
emacs /etc/tripwire/twpol.txt
#+END_SRC
Comment out the line:
#+BEGIN_SRC: bash
/var/log -> $(SEC_CONFIG) ;
#+END_SRC
Then save and exit.
If you subsequently install any more packages or make configuration changes then update the policy again with:
#+BEGIN_SRC: bash
tripwire --update-policy --secure-mode low /etc/tripwire/twpol.txt
#+END_SRC
Also, to look for any rootkits.
#+BEGIN_SRC: bash
apt-get install rkhunter
#+END_SRC
* Router/Firewall ports
The following ports on your internet router/firewall should be forwarded to the BBB.
| Protocol | Port/s |
|---------------+------------|
| Gopher | 70 |
| HTTP | 80 |
| HTTPS | 443 |
| IMAP | 143 |
| IRC SSL | 6670 |
| SIP | 5060..5061 |
| SMTP | 25 |
| SMTPS | 465 |
| SSH | 22 |
| XMPP | 5222..5223 |
| XMPP (server) | 5269 |
| XMPP (BOSH) | 5280..5281 |
| Bitmessage | 8444 |
* Hints and Tips
** Messaging security
If you're connected to other friends via Friendica then the preferred way to send private messages is via Friendica's built-in messaging system. This is a lot more convenient than using GPG with ordinary email and yet still provides a similar level of protection from unwarranted interception.
** Moving Domains
If you're moving servers and using a different domain name or path then you can search and replace URLs within files in the following way:
#+BEGIN_SRC: bash
find /var/www/mynewdomain/htdocs -type f -exec sed -i 's@myolddomain@mynewdomain@g' {} \;
#+END_SRC
If you're moving the blog to a new domain then you will need to delete the lock file:
#+BEGIN_SRC: bash
rm /var/www/myblogdomainname.com/htdocs/fp-content/%%setup.lock
#+END_SRC
Then visit your blog and reinstall it. Your existing content will be unaffected but you will need to delete the welcome post which gets added and also re-select your chosen theme.
** MySql foo
*** Backup all databases
To back up all mysql databases:
#+BEGIN_SRC: bash
mysqldump -u root -p --all-databases --events > /var/backups/databasebackup.sql
#+END_SRC
*** Restoring a particular mysql database
To restore yesterday's friendica backup:
#+BEGIN_SRC: bash
mysql -D friendica -o < /var/backups/friendica_daily.sql
#+END_SRC
To restore yesterday's mediawiki backup:
#+BEGIN_SRC: bash
mysql -D wikidb -o < /var/backups/wikidb_daily.sql
#+END_SRC
*** Removing mysql server
If you manage to screw up sql server completely then it can be fully deleted with:
#+BEGIN_SRC: bash
ps aux | grep mysql
#+END_SRC
and use /kill -9 / to kill all mysql processes.
#+BEGIN_SRC: bash
apt-get remove --purge mysql\*
apt-get clean
updatedb
#+END_SRC
* Deprecated
The following items have been deprecated until such time as a successful installation is achieved.
** Collaborative Document Editing
#+BEGIN_VERSE
/Openness and participation are antidotes to surveillance and control./
-- Howard Rheingold
#+END_VERSE
#+BEGIN_SRC: bash
apt-get install nodejs-legacy
curl https://npmjs.org/install.sh | sh
#+END_SRC
Create an etherpad database.
#+BEGIN_SRC: bash
mysql -p
CREATE DATABASE etherpad CHARACTER SET utf8 COLLATE utf8_general_ci;
GRANT ALL PRIVILEGES ON etherpad.* TO etherpad@localhost IDENTIFIED BY '__yourPasswd__';
FLUSH PRIVILEGES;
exit
#+END_SRC
Download etherpad.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
cd /var/www/$HOSTNAME/htdocs
git clone git://github.com/ether/etherpad-lite.git etherpad
#+END_SRC
Edit the configuration file
#+BEGIN_SRC: bash
cd /var/www/$HOSTNAME/htdocs/etherpad
cp settings.json.template settings.json
emacs /var/www/$HOSTNAME/htdocs/etherpad/settings.json
#+END_SRC
Change the following settings. /rAnD0m5tRIng/ should be altered to a random string 10 characters in length.
#+BEGIN_SRC: bash
//IP and port which etherpad should bind at
"ip": "127.0.0.1",
// set a session key
"sessionKey" : "rAnD0m5tRIng",
//configure the connection settings
"dbType" : "mysql",
"dbSettings" : {
"user" : "etherpad",
"host" : "localhost",
"password": "__yourPassword__",
"database": "etherpad"
},
// add admin user
"users": {
"admin": {
"password": "__yourAdminPassword__",
"is_admin": true
}
},
#+END_SRC
Save and exit, then create a system user.
#+BEGIN_SRC: bash
adduser --system --home=/var/www/$HOSTNAME/htdocs/etherpad/ --group etherpad
chown -R etherpad: /var/www/$HOSTNAME/htdocs/etherpad/
#+END_SRC
Create an init script using your favorite editor.
#+BEGIN_SRC: bash
emacs /etc/init.d/etherpad
#+END_SRC
Add the following, replacing /mydomainname.com/ with your domain name:
#+BEGIN_SRC: bash
#!/bin/sh
### BEGIN INIT INFO
# Provides: etherpad-lite
# Required-Start: $local_fs $remote_fs $network $syslog
# Required-Stop: $local_fs $remote_fs $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts etherpad lite
# Description: starts etherpad lite using start-stop-daemon
### END INIT INFO
PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/node/bin"
LOGFILE="/var/www/mydomainname.com/htdocs/etherpad/etherpad-lite.log"
EPLITE_DIR="/var/www/mydomainname.com/htdocs/etherpad"
EPLITE_BIN="bin/safeRun.sh"
USER="etherpad"
GROUP="etherpad"
DESC="Etherpad Lite"
NAME="etherpad-lite"
set -e
. /lib/lsb/init-functions
start() {
echo "Starting $DESC... "
start-stop-daemon --start --chuid "$USER:$GROUP" --background --make-pidfile --pidfile /var/run/$NAME.pid --exec $EPLITE_DIR/$EPLITE_BIN -- $LOGFILE || true
echo "done"
}
#We need this function to ensure the whole process tree will be killed
killtree() {
local _pid=$1
local _sig=${2-TERM}
for _child in $(ps -o pid --no-headers --ppid ${_pid}); do
killtree ${_child} ${_sig}
done
kill -${_sig} ${_pid}
}
stop() {
echo "Stopping $DESC... "
while test -d /proc/$(cat /var/run/$NAME.pid); do
killtree $(cat /var/run/$NAME.pid) 15
sleep 0.5
done
rm /var/run/$NAME.pid
echo "done"
}
status() {
status_of_proc -p /var/run/$NAME.pid "" "etherpad-lite" && exit 0 || exit $?
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
status)
status
;;
*)
echo "Usage: $NAME {start|stop|restart|status}" >&2
exit 1
;;
esac
exit 0
#+END_SRC
Save and exit, then enable the daemon.
#+BEGIN_SRC: bash
chmod +x /etc/init.d/etherpad
update-rc.d etherpad defaults
service etherpad start
#+END_SRC
Update your Apache configuration.
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
Within the section which begins with ** add the following:
#+BEGIN_SRC: bash
ProxyPass http://localhost:9001/
ProxyPassReverse http://localhost:9001/
Order allow,deny
allow from all
AuthName "Welcome to Etherpad"
AuthUserFile /home/mydomainname.com/public_html/.htpasswd
AuthGroupFile /home/mydomainname.com/public_html/.htgroup
AuthType Basic
Require group etherpad
#+END_SRC
Save and exit, then restart Apache.
#+BEGIN_SRC: bash
apt-get install libapache2-mod-proxy-html
a2enmod proxy proxy_http headers deflate
service apache2 restart
#+END_SRC
Create some passwords for users.
#+BEGIN_SRC: bash
mkdir /home/$HOSTNAME
mkdir /home/$HOSTNAME/public_html
htpasswd -c /home/$HOSTNAME/public_html/.htpasswd myusername
#+END_SRC
Create a user group.
#+BEGIN_SRC: bash
emacs /home/$HOSTNAME/public_html/.htgroup
#+END_SRC
Add the following:
#+BEGIN_SRC: bash
etherpad: myusername
#+END_SRC
Save and exit.
** Install a VoIP server
#+BEGIN_VERSE
/Our core principles, whether in software or sovereignty, have always been about freedom and dignity, for all people, on an equal basis/
-- David Sugar, GNU Telephony
#+END_VERSE
*** The server
Sipwitch is like an introduction service or phone book for SIP VoIP clients. Once introduced the clients can then talk directly, and this means that sipwitch is very lightweight and can run on low power systems such as the BBB.
Edit your package sources:
#+BEGIN_SRC: bash
emacs /etc/apt/sources.list
#+END_SRC
Append the following line:
#+BEGIN_SRC: bash
deb http://dev.gnutelephony.org/archive/ wheezy/
#+END_SRC
Save and exit.
To load the repository the first time after adding it to the sources.list, since you do not have the verification keys already installed yet. Then do
#+BEGIN_SRC: bash
apt-get install gnutelephony-keyring
#+END_SRC
After that it will be happy to accept it as a signed repository. The verification keys can also be directly fetched with
#+BEGIN_SRC: bash
cd /tmp
wget http://dev.gnutelephony.org/archive/wheezy/public.key
#+END_SRC
and manually added instead with
#+BEGIN_SRC: bash
apt-key add public.key
#+END_SRC
To make sure you have all dependencies, do
#+BEGIN_SRC: bash
apt-get update;apt-get dist-upgrade
#+END_SRC
Before we install anything, let's inspect what is available to us by using
#+BEGIN_SRC: bash
dpkg -l sipwitch
#+END_SRC
To see the main application. The columns will indicate if the package is installed, which version and a description of the package. Then do
#+BEGIN_SRC: bash
dpkg -l sipwitch-*
#+END_SRC
to see available supporting applications and plugins. Again, the columns will indicate if the package is installed, which version and a description of each of these.
To install only the main application, do
#+BEGIN_SRC: bash
apt-get install sipwitch
#+END_SRC
and to install all supporting plugins:
#+BEGIN_SRC: bash
apt-get install sipwitch-plugin-scripting sipwitch-plugin-subscriber sipwitch-plugin-forward sipwitch-plugin-zeroconf
#+END_SRC
Add your user into the sipwitch group
#+BEGIN_SRC: bash
groupadd sipwitch
groupadd sipusers
usermod -aG sipwitch myusername
usermod -aG sipusers myusername
#+END_SRC
Then edit the configuration
#+BEGIN_SRC: bash
emacs /etc/sipwitch.conf
#+END_SRC
Change the *mapped* value from 200 to 20, since we don't want to be serving huge numbers of calls.
Alter the *range* value to 10, since we don't need a large number of extensions. This will mean that exension numbers 200 to 209 are available.
Do not set the *realm* value, as doing so seems to prevent the server from working.
Save and exit.
Create a digest string for your username:
#+BEGIN_SRC: bash
sipwitch digest myusername
#+END_SRC
Make a note of the resulting string because you're going to use it in the users file you'll now create.
#+BEGIN_SRC: bash
export HOSTNAME=mydomainname.com
touch /etc/sipwitch.d/$HOSTNAME.xml
chmod 600 /etc/sipwitch.d/$HOSTNAME.xml
emacs /etc/sipwitch.d/$HOSTNAME.xml
#+END_SRC
It should look something like the following:
#+BEGIN_SRC: bash
yourdigeststring201Your full name
#+END_SRC
Save and exit. Now edit the configuration.
#+BEGIN_SRC: bash
emacs /etc/default/sipwitch
#+END_SRC
Change "desktop" to "server", then save and exit.
Update the IP settings:
#+BEGIN_SRC: bash
iptables -A INPUT -p tcp --dport 5060 -j ACCEPT
iptables -A INPUT -p udp --dport 5060 -j ACCEPT
iptables -A INPUT -p tcp --dport 5061 -j ACCEPT
iptables -A INPUT -p udp --dport 5061 -j ACCEPT
iptables-save
#+END_SRC
Test that it's working:
#+BEGIN_SRC: bash
pkill -9 sipw
sipw -x9 -f
#+END_SRC
Then try to register with the server using a SIP client (such as Jitsi). If everything worked then use CTRL-C to exit. Then start the service.
#+BEGIN_SRC: bash
service sipwitch start
#+END_SRC
*** Clients
**** Jitsi
Download the latst version from https://jitsi.org/index.php/Main/Download
TODO
**** Twinkle client
The client should have a user profile as following:
The "user name" is the xxx id used in the entry of /etc/sipwitch.conf
The "domain" is the yyy domain in the main config yyy entry of /etc/sipwitch.conf
The SIP Authentication should have:
realm = realm as set in of /etc/sipwitch.conf
authentication name = entry, same as "User Name" field.
password = value of zzz in entry of /etc/sipwitch.conf
Under security tab, set "Enable ZRTP/SRTP encryption"
**** Android
TODO
CSipSimple?
** Install Mediagoblin
#+BEGIN_SRC: bash
apt-get install git-core python python-dev python-lxml python-imaging python-virtualenv apache2-suexec libapache2-mod-fcgid
#+END_SRC
#+BEGIN_SRC: bash
adduser --system mediagoblin
addgroup mediagoblin
adduser mediagoblin mediagoblin
export HOSTNAME=mydomainname.com
cd /var/www/$HOSTNAME/htdocs
git clone git://gitorious.org/mediagoblin/mediagoblin.git mediagoblin
chown -hR mediagoblin:mediagoblin /var/www/$HOSTNAME/htdocs/mediagoblin
cd /var/www/$HOSTNAME/htdocs/mediagoblin
git submodule init && git submodule update
cp mediagoblin.ini mediagoblin_local.ini
emacs mediagoblin.ini
#+END_SRC
Set email_sender_address to the address you wish to be used as the sender for system-generated emails
Edit direct_remote_path, base_dir, and base_url if your mediagoblin directory is not the root directory of your vhost.
Save and exit.
#+BEGIN_SRC: bash
a2enmod suexec
a2enmod fcgid
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
Add the following to the 80 virtual host, replacing mydomainname.com with your domain name.
#+BEGIN_SRC: bash
deny from all
#+END_SRC
Add the following to the 443 virtual host.
#+BEGIN_SRC: bash
# Serve static and media files via alias
Alias /mgoblin_static/ /var/www/mydomainname.com/htdocs/mediagoblin/mediagoblin/static/
Alias /mgoblin_media/ /var/www/mydomainname.com/htdocs/mediagoblin/user_dev/media/public/
# Rewrite all URLs to fcgi, except for static and media urls
RewriteEngine On
RewriteRule ^(mgoblin_static|mgoblin_media)($|/) - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^/(.*)$ /mg.fcgi/$1 [QSA,L]
# Allow access to static and media directories
Order allow,deny
Allow from all
Order allow,deny
Allow from all
# Connect to fcgi server
FastCGIExternalServer /var/www/mg.fcgi -host 127.0.0.1:26543
#+END_SRC
Save and exit
#+BEGIN_SRC: bash
cd /var/www/$HOSTNAME/htdocs/mediagoblin
./lazyserver.sh --server-name=fcgi fcgi_host=127.0.0.1 fcgi_port=26543
#+END_SRC
https://github.com/joar/mediagoblin-init-scripts
** Kune
Kune is a collaboration tool aimed at not just socialising but also getting stuff done within a community. It's based upon Apache Wave (formerly Google Wave).
#+BEGIN_SRC: bash
apt-get install openjdk-6-jdk openjdk-7-jre mysql-server adduser dbconfig-common libjmagick6-jni
#+END_SRC
Add the Kune repository:
#+BEGIN_SRC: bash
emacs /etc/apt/sources.list
#+END_SRC
Append the following:
#+BEGIN_SRC: bash
deb ftp://ftp.kune.ourproject.org/pub/kune/debian/ stable/
#+END_SRC
Save and exit, then install the Kune package.
#+BEGIN_SRC: bash
gpg --keyserver pgp.mit.edu --recv-keys 9E358A05
gpg --armor --export 9E358A05 | apt-key add -
apt-get update
apt-get install kune
#+END_SRC
You will be asked for the MySql root password and another password to be used with the Kune database.
Allow the system to start automatically at boot.
#+BEGIN_SRC: bash
emacs /etc/default/kune
#+END_SRC
Set /START=yes/, then save and exit.
#+BEGIN_SRC: bash
service kune start
#+END_SRC
Now configure Apache.
#+BEGIN_SRC: bash
a2enmod expires
a2enmod proxy
a2enmod proxy_connect
a2enmod proxy_http
#+END_SRC
Upgrade the database.
#+BEGIN_SRC: bash
mysql -p kune_prod < /usr/share/dbconfig-common/data/kune/upgrade/mysql/0.1.0+b5
mysql -p kune_prod < /usr/share/dbconfig-common/data/kune/upgrade/mysql/0.1.0+b6
mysql -p kune_prod < /usr/share/dbconfig-common/data/kune/upgrade/mysql/0.2.0+b12
mysql -p kune_prod < /usr/share/dbconfig-common/data/kune/upgrade/mysql/0.2.0+b23
mysql -p kune_prod < /usr/share/dbconfig-common/data/kune/upgrade/mysql/0.2.0+b25
#+END_SRC
Edit the Apache configuration.
#+BEGIN_SRC: bash
emacs /etc/apache2/sites-available/$HOSTNAME
#+END_SRC
ServerName YOURSERVERNAME
ProxyRequests Off
Order deny,allow
Allow from all
ExpiresActive On
ExpiresDefault "modification plus 2 years"
ExpiresActive Off
ProxyPass /kune/ http://localhost:8888/
ProxyPassReverse /kune/ http://localhost:8888/
Order allow,deny
Allow from all
Within a browser open https://mydomainname.com:8888
See documentation in /usr/share/doc/kune/INSTALL.gz
* Related projects
* [[https://freedomboxfoundation.org/][Freedombox]]
* [[https://arkos.io/][ArkOS]]