From 32e5425dc796a41bb0a74dea83d475acdb750c31 Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@robotics.uk.to>
Date: Sun, 12 Jan 2014 10:24:54 +0000
Subject: [PATCH] More secure IRC implementation

---
 beaglebone.txt | 62 ++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 45 insertions(+), 17 deletions(-)

diff --git a/beaglebone.txt b/beaglebone.txt
index 29de5069..c0273080 100644
--- a/beaglebone.txt
+++ b/beaglebone.txt
@@ -1707,9 +1707,50 @@ TODO
 
 CSipSimple?
 ** Install an IRC server
+*** Basic 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
-apt-get install ircd-hybrid irssi
 emacs /etc/ircd-hybrid/ircd.conf
 #+END_SRC
 
@@ -1717,7 +1758,7 @@ Set *name* to the name of your server, and set a description.
 
 Set a *network_name* and *network_desc*.
 
-Set max_clients to 20.
+Set max_clients to 20, or however many you expect that you'll typically need.
 
 Within the admin section set your *name* and *email*.
 
@@ -1726,26 +1767,12 @@ 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.
 
-Save and exit.
+Save and exit, then restart the IRC server.  Open ports 6666-6670 on your internet router and forward them to the BBB.
 
 #+BEGIN_SRC: bash
 service ircd-hybrid restart
 #+END_SRC
 
-Try to connect to the IRC and identify yourself as an operator.
-
-In irssi:
-
-#+BEGIN_SRC
-  /connect mydomainname.com
-
-  /join #mychannel
-
-  /msg -servername chanserv REGISTER #mychannel channelpassword
-
-  /msg -servername chanserv set #mychannel mlock +k channelpassword
-#+END_SRC
-
 ** Install Gopher
 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.
 
@@ -2270,6 +2297,7 @@ The following ports on your internet router/firewall should be forwarded to the
 | HTTPS    |        443 |
 | IMAP     |        143 |
 | IRC      | 6665..6669 |
+| IRC SSL  |       6670 |
 | SIP      | 5060..5061 |
 | SMTP     |         25 |
 | SMTPS    |        465 |