diff --git a/doc/EN/faq.org b/doc/EN/faq.org index 25b9ab18..56b11da9 100644 --- a/doc/EN/faq.org +++ b/doc/EN/faq.org @@ -135,6 +135,7 @@ Celebrities recommend Signal. It's Free Software so it must be good, right? If you are currently using a proprietary chat app, something without any encryption or something /really bad/ such as Telegram, then Signal is definitely a step up in terms of security. But Signal has problems, which can be summarised as: + * *It uses phone numbers*. Phone numbers are used for Signal's initial verification, and they can of course be intercepted or faked. Plus it means that Open Whisper Systems keeps a list of phone numbers on its centralised server for its /"X has joined Signal"/ notification. Even if they're hashed, they're still unique identifiers and [[https://en.wikipedia.org/wiki/Rainbow_table][rainbow tables]] for the phone number system probably exist. Phone numbers are convenient for some users, but are also a non-trivial security risk. If you're using Signal then consider what it knows about who your contacts are, where that data is located and who else might have access to that. * *It's based on a single server* run by Open Whisper Systems. That's a single point of failure and ought to be a big red flag (of the sporting rather than the socialist variety) as a possible locus for concentrated nefariousness. * *It requires the installation of Google Play*. If you already have Google Play installed on a stock Android OS then this doesn't increase your security problems, but for other more secure Android variants it's a massive increase in attack surface. * *It depends entirely upon the Google message pushing system*. That means that Google /at least knows who Signal messages are being sent to and may be able to infer the rest via your (insecure) Android phone contact list or via timing correlation of alternating deliveries/. Remember that for an adversary metadata in aggregate is much better than having the content of messages. At any time Google could decide that it doesn't want to support Signal, or in adverse circumstances they could be leaned upon by the usual agencies or government cronies. diff --git a/website/EN/faq.html b/website/EN/faq.html index 98238b2f..4b39177e 100644 --- a/website/EN/faq.html +++ b/website/EN/faq.html @@ -3,7 +3,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
- +See here for the complete list of apps. In addition to those as part of the base install you get an email server.
Yes. The minimum requirements are to have some hardware that you can install Debian onto and also that you have administrator access to your internet router so that you can forward ports to the system which has Freedombone installed.
@@ -386,17 +386,17 @@ The lack of a static IP address can be worked around by using a dynamic DNS servWhen the project began in late 2013 the FreedomBox project seemed to be going nowhere, and was only designed to work with the DreamPlug hardware. There was some new hardware out - the Beaglebone Black - which could run Debian and was also a free hardware design so seemed more appropriate. Hence the name "Freedombone", being like FreedomBox but on a Beaglebone. There are some similarities and differences between the two projects:
The FreedomBox project supports Raspberry Pi builds, and the image build system for Freedombone is based on the same system. However, although the Raspberry Pi can run a version of Debian it requires a closed proprietary blob in order to boot the hardware. Who knows what that blob might contain or what exploits it could facilitate. From an adversarial point of view if you were trying to deliver "bulk equipment interference" then it doesn't get any better than piggybacking on something which has control of the boot process, and hence all subsequently run processes.
@@ -439,9 +439,9 @@ So although the Raspberry Pi is cheap and hugely popular it's not supported by tBefore you run screaming for the hills based upon whatever scare story you may have just read in the mainstream media there are a few things worthy of consideration. Tor is installed by default on Freedombone, but not as a relay or exit node. It's only used to provide onion addresses so that this gives you or the viewers of your sites some choice about how they access the information. It also allows you to subscribe to and read RSS feeds privately.
@@ -459,9 +459,9 @@ The media may also have sold you torrid tales about individual Tor project develGithub is paradoxically a centralized, closed and proprietary system which happens to mostly host free and open source projects. Up until now it has been relatively benign, but at some point in the name of "growth" it will likely start becoming more evil, or just become like SourceForge - which was also once much loved by FOSS developers, but turned into a den of malvertizing.
@@ -479,9 +479,9 @@ Currently many of the repositories used for applications which are not yet packaOrdinarily this is good advice. However, the threat model for a device in your home is different from the one for a generic server in a massive warehouse. Compare and contrast:
@@ -539,9 +539,9 @@ In the home environment a box with a good firewall and no GUI components installProbably you need to add the site to the NoScript whitelist. Typically click/press on the noscript icon (or select from the menu on mobile) then select whitelist and add the site URL. You may also need to disable HTTPS Everywhere when using onion addresses, which don't use https.
@@ -551,9 +551,9 @@ Another factor to be aware of is that it can take a while for the onion addressIt was originally designed to run on the Beaglebone Black, but that should be regarded as the most minimal system, because it's single core and has by today's standards a small amount of memory. Obviously the more powerful the hardware is the faster things like web pages (blog, social networking, etc) will be served but the more electricity such a system will require if you're running it 24/7. A good compromise between performance and energy consumption is something like an old netbook. The battery of an old netbook or laptop even gives you UPS capability to keep the system going during brief power outages or cable re-arrangements, and that means using full disk encryption on the server also becomes more practical.
@@ -563,9 +563,9 @@ It was originally designed to run on the Beaglebone Black, but that should be reYes. Freedombone can support a small number of users, for a "friends and family" type of home installation. This gives them access to an email account, XMPP, SIP phone and the blog (depending on whether the variant which you installed includes those).
@@ -588,9 +588,9 @@ Another point is that Freedombone installations are not intended to support manyCelebrities recommend Signal. It's Free Software so it must be good, right?
@@ -600,6 +600,7 @@ If you are currently using a proprietary chat app, something without any encryptOn mobile there are various options. The apps which are likely to be most secure are ones which have end-to-end encryption enabled by default and which can also be onion routed via Orbot. End-to-end encryption secures the content of the message and onion routing obscures the metadata, making it hard for a passive adversary to know who is communicating with who.
@@ -624,13 +625,13 @@ The current safest way to chat is to use Conv-There are many other fashionable chat apps with end-to-end security, but often they are closed source, have a single central server or can't be onion routed. It's also important to remember that closed source chat apps should be assumed to be untrustworthy, since their security cannot be independently verified. +There are many other fashionable chat apps with end-to-end security, but often they are closed source, have a single central server or can't be onion routed. It's also important to remember that closed source chat apps should be assumed to be untrustworthy, since their security cannot be independently verified.
To remove a user:
@@ -645,9 +646,9 @@ Select Administrator controls then Manage Users and then DeleteIf you're making profits out of the logs by running large server warehouses and then data mining what users click on - as is the business model of well known internet companies - then logging everything makes total sense. However, if you're running a home server then logging really only makes sense if you're trying to diagnose some specific problem with the system, and outside of that context logging everything becomes more of a liability than an asset.
@@ -661,9 +662,9 @@ On the Freedombone system web logs containing IP addresses are turned off by defThe tripwire will be automatically reset once per week. If you want to reset it earlier then do the following:
@@ -678,9 +679,9 @@ Select Administrator controls then "reset tripwire" using cursors and spa"We kill people based on metadata" @@ -696,9 +697,9 @@ Even when using Freedombone metadata analysis by third parties is still possible
ssh username@domainname -p 2222@@ -754,9 +755,9 @@ Spamassassin is also available and within Mutt you can use the S (shift+s) key t
If you run the command:
@@ -779,9 +780,9 @@ https://www.privateinternetaccess.com/pages/whats-my-ip/Suppose that some new encryption vulnerability has been announced and that you need to change your encryption settings. Maybe an algorithm thought to be secure is now no longer so and you need to remove it. You can change your settings by doing the following:
@@ -796,9 +797,9 @@ Select Administrator controls then select Security Settings. You wSuppose that you have bought a domain name (rather than using a free subdomain on freedns) and you want to use that instead.
@@ -862,9 +863,9 @@ You should now be able to send an email from postmaster@mynewdomainname aIf you did the full install or selected the social variant then the system will have tried to obtain a Let's Encrypt certificate automatically during the install process. If this failed for any reason, or if you have created a new site which you need a certificate for then do the following:
@@ -883,9 +884,9 @@ One thing to be aware of is that Let's Encrypt doesn't support many dynamic DNSNormally certificates will be automatically renewed once per month, so you don't need to be concerned about it. If anything goes wrong with the automatic renewal then you should receive a warning email.
@@ -904,9 +905,9 @@ Select Administrator controls then Security settings then RenewMost likely it's because Let's Encrypt doesn't support your particular domain or subdomain. Currently free subdomains tend not to work. You'll need to buy a domain name, link it to your dynamic DNS account and then do:
@@ -921,9 +922,9 @@ Select Administrator controls then Security settings then CreatAlmost everywhere on the web you will read that self-signed certificates are worthless. They bring up scary-scary looking browser warnings and gurus will advise you not to use them. Self-signed certificates are quite useful though. What the scary warnings mean - and it would be good if they explained this more clearly - is that you have an encrypted connection established but there is no certainty about who that connection is with. They probably will protect the content of your communications from passive bulk interception - such as the tapping of under-sea cables.
@@ -938,17 +939,17 @@ You might say, "but surely LetsEncrypt is a single point of failure!", anThat pledge is utterly worthless. Years ago people trusted Google in the same sort of way, because they promised not be be evil and because a lot of the engineers working for them seemed like honest types who were "on our side". Post-nymwars and post-PRISM we know exactly how much Google cared about the privacy and security of its users. But Google is only one particular example. In general don't trust pledges made by companies, even if the people running them seem really sincere.
Welcome to the world of email. Email is really the archetypal decentralized service, developed during the early days of the internet. In principle anyone can run an email server, and that's exactly what you're doing with Freedombone. Email is very useful, but it has a big problem, and that's that the protocols are totally insecure. That made it easy for spammers to do their thing, and in response highly elaborate spam filtering and blocking systems were developed. Chances are that your emails are being blocked in this way. Sometimes the blocking is so indisciminate that entire countries are excluded. What can you do about it? Unless you control the block list at the receiving end you may not be able to do much unless you can find an email proxy server which is trusted by the receiving server.