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<meta name="author" content="Bob Mottram" />
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-<td class="left"><a href="#unnumbered-3">Is metadata protected?</a></td>
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+<td class="left"><a href="#unnumbered-3">How do I reset the tripwire?</a></td>
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-<td class="left"><a href="#unnumbered-4">Why isn't dynamic DNS working?</a></td>
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-<td class="left"><a href="#unnumbered-5">How do I get a domain name?</a></td>
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-<td class="left"><a href="#unnumbered-6">How do I get a "real" SSL certificate?</a></td>
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+<td class="left"><a href="#unnumbered-6">How do I get a domain name?</a></td>
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-<td class="left"><a href="#unnumbered-7">How do I renew a StartSSL certificate?</a></td>
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+<td class="left"><a href="#unnumbered-7">How do I get a "real" SSL certificate?</a></td>
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+<td class="left"><a href="#unnumbered-8">How do I renew a StartSSL certificate?</a></td>
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-<td class="left"><a href="#unnumbered-9">Why not use the services of $company instead? They took the Seppuku pledge</a></td>
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+<td class="left"><a href="#unnumbered-9">Why use self-signed certificates?</a></td>
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+<td class="left"><a href="#unnumbered-10">Why not use the services of $company instead? They took the Seppuku pledge</a></td>
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+</tr>
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+<td class="left"><a href="#unnumbered-11">Why does my email keep getting rejected as spam by Gmail/etc?</a></td>
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@@ -229,17 +233,37 @@ Like any other GNU/Linux system you can add more users. It's easy to add users t
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-<h2 id="unnumbered-3">Is metadata protected?</h2>
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+<h2 id="unnumbered-3">How do I reset the tripwire?</h2>
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<div class="outline-text-2" id="text-unnumbered-3">
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-Even when using Freedombone metadata analysis by third parties is still possible. They might have a much harder time knowing what the content is, but they can potentially construct extensive dossiers based upon who communicated with your server when. Metadata leakage is a general problem with most current web systems and it is hoped that more secure technology will become available in future. But for now if metadata protection is your main concern using Freedombone won't help.
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+You will get a daily email which indicates which files on the system have changed recently. Once per week the system will install any updates and those may also show up on the list, along with any changes due to installed packages or changed settings. Watch out for any files which change unexpectedly, which could indicate an intruder. To reset the tripwire:
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+<div class="org-src-container">
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+<pre class="src src-bash">ssh username@mydomain -p 2222
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+su
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+reset-tripwire
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+</pre>
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+</div>
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+You will need to press enter a couple of times. Doing this typically once per week may be a chore, and it's not completely foolproof, but it at least provides some degree of confidence that there have been no intrusions.
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+Even when using Freedombone metadata analysis by third parties is still possible. They might have a much harder time knowing what the content is, but they can potentially construct extensive dossiers based upon who communicated with your server when. Metadata leakage is a general problem with most current web systems and it is hoped that more secure technology will become available in future. But for now if metadata protection is your main concern using Freedombone won't help.
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+</p>
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+<h2 id="unnumbered-5">Why isn't dynamic DNS working?</h2>
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If you run the command:
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+<h2 id="unnumbered-6">How do I get a domain name?</h2>
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Suppose that you have bought a domain name (rather than using a free subdomain on freedns) and you want to use that instead.
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You can obtain a free "official" (as in recognised by default by web browsers) SSL certificate from <a href="https://www.startssl.com/">StartSSL</a>. You will first need to have bought a domain name, since it's not possible to obtain one for a freedns subdomain, so see <i>Using your own domain</i> for details of how to do that. You should also have tested that you can send email to the domain and receive it on the Freedombone (via Mutt or any other email client).
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The StartSSL certificates last for a year. You can check the expiry date of your current certificate/s by going to your site and if you're using Firefox then click on the <b>lock icon</b>, select "<b>more information</b>" then "<b>view certificate</b>".
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Almost everywhere on the web you will read that self-signed certificates are worthless. They bring up 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 <i>no certainty about who that connection is with</i>. The usual solution to this is to get a "real" SSL certificate from one of the certificate authorities, but it's far from clear that such authorities can be trusted. There have been various scandals involving such organisations, and it does not seem plausible to assume that they are somehow immune to the sort of treatment which <a href="http://en.wikipedia.org/wiki/Lavabit">Lavabit</a> received. So although most internet users have been trained to look for the lock icon as an indication that the connection is secured that belief may not always be well founded.
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<a href="http://seppuku.cryptostorm.org/">That pledge</a> 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 "<i>on our side</i>". Post-<a href="https://en.wikipedia.org/wiki/Nymwars">nymwars</a> and post-<a href="https://en.wikipedia.org/wiki/PRISM_(surveillance_program)">PRISM</a> 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.
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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 probably you can't do anything. There is zero accountability for such blocking, and you can't just contact someone and say "hey, I'm not a spammer". This system works well for the big internet companies because it effectively centralises email to a few well-known brand names and keeps any independent servers out.
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Bob Mottram
10 years ago