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faq

Bob Mottram 9 년 전
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-<td class="left"><a href="#sec-1">1</a></td>
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+<td class="org-left"><a href="#orgheadline1">Why not supply a disk image download?</a></td>
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-<td class="left"><a href="#sec-2">2</a></td>
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+<td class="org-left"><a href="#orgheadline2">I don't have a static IP address. Can I still install this system?</a></td>
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-<td class="left"><a href="#sec-3">3</a></td>
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+<td class="org-left"><a href="#orgheadline3">What is the best hardware to run this system on?</a></td>
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-<td class="left"><a href="#sec-4">4</a></td>
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+<td class="org-left"><a href="#orgheadline4">Can I add more users to the system?</a></td>
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-<td class="left"><a href="#sec-5">5</a></td>
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+<td class="org-left"><a href="#orgheadline5">How do I remove a user from the system?</a></td>
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-<td class="left"><a href="#sec-6">6</a></td>
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+<td class="org-left"><a href="#orgheadline6">How do I reset the tripwire?</a></td>
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-<td class="left"><a href="#sec-7">7</a></td>
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+<td class="org-left"><a href="#orgheadline7">Is metadata protected?</a></td>
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-<td class="left"><a href="#sec-8">8</a></td>
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+<td class="org-left"><a href="#orgheadline8">How do I create email processing rules?</a></td>
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-<td class="left"><a href="#sec-9">9</a></td>
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+<td class="org-left"><a href="#orgheadline9">Why isn't dynamic DNS working?</a></td>
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-<td class="left"><a href="#sec-10">10</a></td>
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+<td class="org-left"><a href="#orgheadline10">How do I change my encryption settings?</a></td>
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-<td class="left"><a href="#sec-11">11</a></td>
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+<td class="org-left"><a href="#orgheadline11">How do I get a domain name?</a></td>
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+<td class="org-left"><a href="#orgheadline12">How do I get a "real" SSL certificate?</a></td>
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+<td class="org-left"><a href="#orgheadline13">How do I renew a StartSSL certificate?</a></td>
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-<td class="left"><a href="#sec-14">14</a></td>
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+<td class="org-left"><a href="#orgheadline14">Why use self-signed certificates?</a></td>
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-<td class="left"><a href="#sec-15">15</a></td>
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+<td class="org-left"><a href="#orgheadline15">Why not use the services of $company instead? They took the Seppuku pledge</a></td>
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-<td class="left"><a href="#sec-16">16</a></td>
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+<td class="org-left"><a href="#orgheadline16">Why does my email keep getting rejected as spam by Gmail/etc?</a></td>
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-<h2 id="sec-1"><span class="section-number-2">1</span> Why not supply a disk image download?</h2>
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-<div class="outline-text-2" id="text-1">
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+<h2 id="orgheadline1">Why not supply a disk image download?</h2>
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 <p>
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 <p>
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 Shipping a Freedombone disk image ready to install on a flash disk would be easy, but disk images are relatively opaque. It would be quite easy to hide something nasty within a disk image and the user might never know. To guard against that possibility installing via the <b>freedombone</b> command is a lot more transparent, since it's really just a bash script. You can check the script code to see exactly what it's doing, and the packages are all downloaded from standard Debian repos (you can even choose which one you trust) or git repos. Doing it this way the system is fully auditable, whereas when shipping a disk image it's harder to be confident that no nefarious extras have been added.
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 Shipping a Freedombone disk image ready to install on a flash disk would be easy, but disk images are relatively opaque. It would be quite easy to hide something nasty within a disk image and the user might never know. To guard against that possibility installing via the <b>freedombone</b> command is a lot more transparent, since it's really just a bash script. You can check the script code to see exactly what it's doing, and the packages are all downloaded from standard Debian repos (you can even choose which one you trust) or git repos. Doing it this way the system is fully auditable, whereas when shipping a disk image it's harder to be confident that no nefarious extras have been added.
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-<div id="outline-container-sec-2" class="outline-2">
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-<h2 id="sec-2"><span class="section-number-2">2</span> I don't have a static IP address. Can I still install this system?</h2>
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-<div class="outline-text-2" id="text-2">
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+<h2 id="orgheadline2">I don't have a static IP address. Can I still install this system?</h2>
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 <p>
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 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.
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 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.
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-<h2 id="sec-3"><span class="section-number-2">3</span> What is the best hardware to run this system on?</h2>
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-<div class="outline-text-2" id="text-3">
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+<div id="outline-container-orgheadline3" class="outline-2">
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+<h2 id="orgheadline3">What is the best hardware to run this system on?</h2>
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 It 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 <a href="https://en.wikipedia.org/wiki/Uninterruptible_power_supply">UPS capability</a> 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.
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 It 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 <a href="https://en.wikipedia.org/wiki/Uninterruptible_power_supply">UPS capability</a> 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.
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-<h2 id="sec-4"><span class="section-number-2">4</span> Can I add more users to the system?</h2>
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-<div class="outline-text-2" id="text-4">
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+<div id="outline-container-orgheadline4" class="outline-2">
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+<h2 id="orgheadline4">Can I add more users to the system?</h2>
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 Yes. Freedombone can support a small number of users, for a "<i>friends and family</i>" type of home installation. This gives them access to an email account, XMPP and the blog (depending on whether the variant which you installed includes those). To add a user login as root then run the command:
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 Yes. Freedombone can support a small number of users, for a "<i>friends and family</i>" type of home installation. This gives them access to an email account, XMPP and the blog (depending on whether the variant which you installed includes those). To add a user login as root then run the command:
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-<h2 id="sec-5"><span class="section-number-2">5</span> How do I remove a user from the system?</h2>
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-<div class="outline-text-2" id="text-5">
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+<h2 id="orgheadline5">How do I remove a user from the system?</h2>
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 To remove a user login as root then run the command:
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 To remove a user login as root then run the command:
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-<h2 id="sec-6"><span class="section-number-2">6</span> How do I reset the tripwire?</h2>
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-<div class="outline-text-2" id="text-6">
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+<div id="outline-container-orgheadline6" class="outline-2">
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+<h2 id="orgheadline6">How do I reset the tripwire?</h2>
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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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 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 id="outline-container-sec-7" class="outline-2">
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-<h2 id="sec-7"><span class="section-number-2">7</span> Is metadata protected?</h2>
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-<div class="outline-text-2" id="text-7">
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+<div id="outline-container-orgheadline7" class="outline-2">
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+<h2 id="orgheadline7">Is metadata protected?</h2>
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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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 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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-<h2 id="sec-8"><span class="section-number-2">8</span> How do I create email processing rules?</h2>
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-<div class="outline-text-2" id="text-8">
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+<div id="outline-container-orgheadline8" class="outline-2">
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+<h2 id="orgheadline8">How do I create email processing rules?</h2>
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 You can administer email in the traditional manner by editing folders or procmail rules, but for convenience some commands are available to make that process simpler. See the relevant manpages for more details.
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 You can administer email in the traditional manner by editing folders or procmail rules, but for convenience some commands are available to make that process simpler. See the relevant manpages for more details.
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-<td class="left">freedombone-addlist</td>
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-<td class="left">Adds a mailing list</td>
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+<td class="org-left">freedombone-addlist</td>
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+<td class="org-left">Adds a mailing list</td>
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-<td class="left">Removes a mailing list</td>
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+<td class="org-left">Removes a mailing list</td>
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-<td class="left">Transfers emails from an address to a given folder</td>
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+<td class="org-left">Transfers emails from an address to a given folder</td>
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360 
-<td class="left">Removes an email transferal rule</td>
372 
+<td class="org-left">freedombone-rmemail</td>
373 
+<td class="org-left">Removes an email transferal rule</td>
361 
 </tr>
 374 
 </tr>
362
375
363 
 <tr>
 376 
 <tr>
364 
-<td class="left">freedombone-ignore</td>
365 
-<td class="left">Ignores email from an address or with a subject line containing text</td>
377 
+<td class="org-left">freedombone-ignore</td>
378 
+<td class="org-left">Ignores email from an address or with a subject line containing text</td>
366 
 </tr>
 379 
 </tr>
367
380
368 
 <tr>
 381 
 <tr>
369 
-<td class="left">freedombone-unignore</td>
370 
-<td class="left">Removes an ignore rule</td>
382 
+<td class="org-left">freedombone-unignore</td>
383 
+<td class="org-left">Removes an ignore rule</td>
371 
 </tr>
 384 
 </tr>
372 
 </tbody>
 385 
 </tbody>
373 
 </table>
 386 
 </table>
377 
 </p>
 390 
 </p>
378 
 </div>
 391 
 </div>
379 
 </div>
 392 
 </div>
380 
-<div id="outline-container-sec-9" class="outline-2">
381 
-<h2 id="sec-9"><span class="section-number-2">9</span> Why isn't dynamic DNS working?</h2>
382 
-<div class="outline-text-2" id="text-9">
393 
+<div id="outline-container-orgheadline9" class="outline-2">
394 
+<h2 id="orgheadline9">Why isn't dynamic DNS working?</h2>
395 
+<div class="outline-text-2" id="text-orgheadline9">
383 
 <p>
 396 
 <p>
384 
 If you run the command:
 397 
 If you run the command:
385 
 </p>
 398 
 </p>
447 
 </div>
 460 
 </div>
448 
 </div>
 461 
 </div>
449
462
450 
-<div id="outline-container-sec-10" class="outline-2">
451 
-<h2 id="sec-10"><span class="section-number-2">10</span> How do I change my encryption settings?</h2>
452 
-<div class="outline-text-2" id="text-10">
463 
+<div id="outline-container-orgheadline10" class="outline-2">
464 
+<h2 id="orgheadline10">How do I change my encryption settings?</h2>
465 
+<div class="outline-text-2" id="text-orgheadline10">
453 
 <p>
 466 
 <p>
454 
 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:
 467 
 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:
455 
 </p>
 468 
 </p>
467 
 </p>
 480 
 </p>
468 
 </div>
 481 
 </div>
469 
 </div>
 482 
 </div>
470 
-<div id="outline-container-sec-11" class="outline-2">
471 
-<h2 id="sec-11"><span class="section-number-2">11</span> How do I get a domain name?</h2>
472 
-<div class="outline-text-2" id="text-11">
483 
+<div id="outline-container-orgheadline11" class="outline-2">
484 
+<h2 id="orgheadline11">How do I get a domain name?</h2>
485 
+<div class="outline-text-2" id="text-orgheadline11">
473 
 <p>
 486 
 <p>
474 
 Suppose that you have bought a domain name (rather than using a free subdomain on freedns) and you want to use that instead.
 487 
 Suppose that you have bought a domain name (rather than using a free subdomain on freedns) and you want to use that instead.
475 
 </p>
 488 
 </p>
537 
 </div>
 550 
 </div>
538 
 </div>
 551 
 </div>
539
552
540 
-<div id="outline-container-sec-12" class="outline-2">
541 
-<h2 id="sec-12"><span class="section-number-2">12</span> How do I get a "real" SSL certificate?</h2>
542 
-<div class="outline-text-2" id="text-12">
553 
+<div id="outline-container-orgheadline12" class="outline-2">
554 
+<h2 id="orgheadline12">How do I get a "real" SSL certificate?</h2>
555 
+<div class="outline-text-2" id="text-orgheadline12">
543 
 <p>
 556 
 <p>
544 
-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 <a href="#sec-11">Using your own domain</a> 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).
557 
+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 <a href="#orgheadline11">Using your own domain</a> 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).
545 
 </p>
 558 
 </p>
546
559
547 
 <p>
 560 
 <p>
558
571
559 
 <div class="org-src-container">
 572 
 <div class="org-src-container">
560
573
561 
-<pre class="src src-bash">export HOSTNAME=mydomainname.com
562 
-openssl genrsa -out /etc/ssl/private/$HOSTNAME.key 2048
563 
-chown root:ssl-cert /etc/ssl/private/$HOSTNAME.key
564 
-chmod 440 /etc/ssl/private/$HOSTNAME.key
574 
+<pre class="src src-bash"><span class="org-builtin">export</span> <span class="org-variable-name">HOSTNAME</span>=mydomainname.com
575 
+openssl genrsa -out /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.key 2048
576 
+chown root:ssl-cert /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.key
577 
+chmod 440 /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.key
565 
 mkdir /etc/ssl/requests
 578 
 mkdir /etc/ssl/requests
566 
 </pre>
 579 
 </pre>
567 
 </div>
 580 
 </div>
572
585
573 
 <div class="org-src-container">
 586 
 <div class="org-src-container">
574
587
575 
-<pre class="src src-bash">openssl req -new -sha256 -key /etc/ssl/private/$HOSTNAME.key -out /etc/ssl/requests/$HOSTNAME.csr
588 
+<pre class="src src-bash">openssl req -new -sha256 -key /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.key -out /etc/ssl/requests/$<span class="org-variable-name">HOSTNAME</span>.csr
576 
 </pre>
 589 
 </pre>
577 
 </div>
 590 
 </div>
578
591
590
603
591 
 <div class="org-src-container">
 604 
 <div class="org-src-container">
592
605
593 
-<pre class="src src-bash">cat /etc/ssl/requests/$HOSTNAME.csr
606 
+<pre class="src src-bash">cat /etc/ssl/requests/$<span class="org-variable-name">HOSTNAME</span>.csr
594 
 </pre>
 607 
 </pre>
595 
 </div>
 608 
 </div>
596
609
604
617
605 
 <div class="org-src-container">
 618 
 <div class="org-src-container">
606
619
607 
-<pre class="src src-bash">editor /etc/ssl/certs/$HOSTNAME.crt
620 
+<pre class="src src-bash">editor /etc/ssl/certs/$<span class="org-variable-name">HOSTNAME</span>.crt
608 
 </pre>
 621 
 </pre>
609 
 </div>
 622 
 </div>
610
623
616
629
617 
 <pre class="src src-bash">mkdir /etc/ssl/roots
 630 
 <pre class="src src-bash">mkdir /etc/ssl/roots
618 
 mkdir /etc/ssl/chains
 631 
 mkdir /etc/ssl/chains
619 
-wget "http://www.startssl.com/certs/ca.pem" --output-document="/etc/ssl/roots/startssl-root.ca"
620 
-wget "http://www.startssl.com/certs/sub.class1.server.ca.pem" --output-document="/etc/ssl/chains/startssl-sub.class1.server.ca.pem"
621 
-wget "http://www.startssl.com/certs/sub.class2.server.ca.pem" --output-document="/etc/ssl/chains/startssl-sub.class2.server.ca.pem"
622 
-wget "http://www.startssl.com/certs/sub.class3.server.ca.pem" --output-document="/etc/ssl/chains/startssl-sub.class3.server.ca.pem"
623 
-ln -s "/etc/ssl/roots/startssl-root.ca" "/etc/ssl/roots/$HOSTNAME-root.ca"
624 
-ln -s "/etc/ssl/chains/startssl-sub.class1.server.ca.pem" "/etc/ssl/chains/$HOSTNAME.ca"
625 
-cp "/etc/ssl/certs/$HOSTNAME.crt" "/etc/ssl/certs/$HOSTNAME.crt+chain+root"
626 
-test -e "/etc/ssl/chains/$HOSTNAME.ca" &amp;&amp; cat "/etc/ssl/chains/$HOSTNAME.ca" &gt;&gt; "/etc/ssl/certs/$HOSTNAME.crt+chain+root"
627 
-test -e "/etc/ssl/roots/$HOSTNAME-root.ca" &amp;&amp; cat "/etc/ssl/roots/$HOSTNAME-root.ca" &gt;&gt; "/etc/ssl/certs/$HOSTNAME.crt+chain+root"
632 
+wget <span class="org-string">"http://www.startssl.com/certs/ca.pem"</span> --output-document=<span class="org-string">"/etc/ssl/roots/startssl-root.ca"</span>
633 
+wget <span class="org-string">"http://www.startssl.com/certs/sub.class1.server.ca.pem"</span> --output-document=<span class="org-string">"/etc/ssl/chains/startssl-sub.class1.server.ca.pem"</span>
634 
+wget <span class="org-string">"http://www.startssl.com/certs/sub.class2.server.ca.pem"</span> --output-document=<span class="org-string">"/etc/ssl/chains/startssl-sub.class2.server.ca.pem"</span>
635 
+wget <span class="org-string">"http://www.startssl.com/certs/sub.class3.server.ca.pem"</span> --output-document=<span class="org-string">"/etc/ssl/chains/startssl-sub.class3.server.ca.pem"</span>
636 
+ln -s <span class="org-string">"/etc/ssl/roots/startssl-root.ca"</span> <span class="org-string">"/etc/ssl/roots/$HOSTNAME-root.ca"</span>
637 
+ln -s <span class="org-string">"/etc/ssl/chains/startssl-sub.class1.server.ca.pem"</span> <span class="org-string">"/etc/ssl/chains/$HOSTNAME.ca"</span>
638 
+cp <span class="org-string">"/etc/ssl/certs/$HOSTNAME.crt"</span> <span class="org-string">"/etc/ssl/certs/$HOSTNAME.crt+chain+root"</span>
639 
+<span class="org-builtin">test</span> -e <span class="org-string">"/etc/ssl/chains/$HOSTNAME.ca"</span> &amp;&amp; cat <span class="org-string">"/etc/ssl/chains/$HOSTNAME.ca"</span> &gt;&gt; <span class="org-string">"/etc/ssl/certs/$HOSTNAME.crt+chain+root"</span>
640 
+<span class="org-builtin">test</span> -e <span class="org-string">"/etc/ssl/roots/$HOSTNAME-root.ca"</span> &amp;&amp; cat <span class="org-string">"/etc/ssl/roots/$HOSTNAME-root.ca"</span> &gt;&gt; <span class="org-string">"/etc/ssl/certs/$HOSTNAME.crt+chain+root"</span>
628 
 </pre>
 641 
 </pre>
629 
 </div>
 642 
 </div>
630
643
637 
 <pre class="src src-bash">mkdir /etc/ssl/backups
 650 
 <pre class="src src-bash">mkdir /etc/ssl/backups
638 
 mkdir /etc/ssl/backups/certs
 651 
 mkdir /etc/ssl/backups/certs
639 
 mkdir /etc/ssl/backups/private
 652 
 mkdir /etc/ssl/backups/private
640 
-cp /etc/ssl/certs/$HOSTNAME* /etc/ssl/backups/certs/
641 
-cp /etc/ssl/private/$HOSTNAME* /etc/ssl/backups/private/
653 
+cp /etc/ssl/certs/$<span class="org-variable-name">HOSTNAME</span>* /etc/ssl/backups/certs/
654 
+cp /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>* /etc/ssl/backups/private/
642 
 chmod -R 400 /etc/ssl/backups/certs/*
 655 
 chmod -R 400 /etc/ssl/backups/certs/*
643 
 chmod -R 400 /etc/ssl/backups/private/*
 656 
 chmod -R 400 /etc/ssl/backups/private/*
644 
 </pre>
 657 
 </pre>
650
663
651 
 <div class="org-src-container">
 664 
 <div class="org-src-container">
652
665
653 
-<pre class="src src-bash">openssl rsa -in /etc/ssl/private/$HOSTNAME.key -out /etc/ssl/private/$HOSTNAME.new.key
654 
-cp /etc/ssl/private/$HOSTNAME.new.key /etc/ssl/private/$HOSTNAME.key
655 
-shred -zu /etc/ssl/private/$HOSTNAME.new.key
666 
+<pre class="src src-bash">openssl rsa -in /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.key -out /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.new.key
667 
+cp /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.new.key /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.key
668 
+shred -zu /etc/ssl/private/$<span class="org-variable-name">HOSTNAME</span>.new.key
656 
 </pre>
 669 
 </pre>
657 
 </div>
 670 
 </div>
658
671
662
675
663 
 <div class="org-src-container">
 676 
 <div class="org-src-container">
664
677
665 
-<pre class="src src-bash">cat /etc/ssl/certs/$HOSTNAME.crt /etc/ssl/chains/startssl-sub.class1.server.ca.pem &gt; /etc/ssl/certs/$HOSTNAME.bundle.crt
678 
+<pre class="src src-bash">cat /etc/ssl/certs/$<span class="org-variable-name">HOSTNAME</span>.crt /etc/ssl/chains/startssl-sub.class1.server.ca.pem &gt; /etc/ssl/certs/$<span class="org-variable-name">HOSTNAME</span>.bundle.crt
666 
 </pre>
 679 
 </pre>
667 
 </div>
 680 
 </div>
668
681
673 
 <div class="org-src-container">
 686 
 <div class="org-src-container">
674
687
675 
 <pre class="src src-bash">mkdir /etc/ssl/mycerts
 688 
 <pre class="src src-bash">mkdir /etc/ssl/mycerts
676 
-cp /etc/ssl/certs/$HOSTNAME.bundle.crt /etc/ssl/mycerts
689 
+cp /etc/ssl/certs/$<span class="org-variable-name">HOSTNAME</span>.bundle.crt /etc/ssl/mycerts
677 
 cat /etc/ssl/mycerts/*.crt &gt; /etc/ssl/freedombone-bundle.crt
 690 
 cat /etc/ssl/mycerts/*.crt &gt; /etc/ssl/freedombone-bundle.crt
678 
 tar -czvf /etc/ssl/freedombone-certs.tar.gz /etc/ssl/mycerts/*.crt
 691 
 tar -czvf /etc/ssl/freedombone-certs.tar.gz /etc/ssl/mycerts/*.crt
679 
 </pre>
 692 
 </pre>
685
698
686 
 <div class="org-src-container">
 699 
 <div class="org-src-container">
687
700
688 
-<pre class="src src-bash">editor /etc/nginx/sites-available/$HOSTNAME
701 
+<pre class="src src-bash">editor /etc/nginx/sites-available/$<span class="org-variable-name">HOSTNAME</span>
689 
 </pre>
 702 
 </pre>
690 
 </div>
 703 
 </div>
691
704
710 
 </div>
 723 
 </div>
711
724
712 
 <p>
 725 
 <p>
713 
-Now visit your web site at <a href="https://mydomainname.com">https://mydomainname.com</a> and you should notice that there is no certificate warning displayed.  You will now be able to install systems which don't allow the use of self-signed certificates, such as <a href="https://github.com/redmatrix/hubzilla">Hubzilla</a>.
726 
+Now visit your web site at <a href="https://mydomainname.com/">https://mydomainname.com/</a> and you should notice that there is no certificate warning displayed.  You will now be able to install systems which don't allow the use of self-signed certificates, such as <a href="https://github.com/redmatrix/hubzilla">Hubzilla</a>.
714 
 </p>
 727 
 </p>
715 
 </div>
 728 
 </div>
716 
 </div>
 729 
 </div>
717
730
718 
-<div id="outline-container-sec-13" class="outline-2">
719 
-<h2 id="sec-13"><span class="section-number-2">13</span> How do I renew a StartSSL certificate?</h2>
720 
-<div class="outline-text-2" id="text-13">
731 
+<div id="outline-container-orgheadline13" class="outline-2">
732 
+<h2 id="orgheadline13">How do I renew a StartSSL certificate?</h2>
733 
+<div class="outline-text-2" id="text-orgheadline13">
721 
 <p>
 734 
 <p>
722 
 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>".
 735 
 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>".
723 
 </p>
 736 
 </p>
731 
 </p>
 744 
 </p>
732
745
733 
 <p>
 746 
 <p>
734 
-Now go to <a href="https://startssl.com">startssl.com</a> and click on the keys icon on the right hand side to log in. Select the <b>Control panel</b> then <b>Validations Wizard</b> and choose <b>Email address validation</b>. Enter your email address, then wait for the validation email to show up in your inbox. It will contain a code when you can then enter.
747 
+Now go to <a href="https://startssl.com/">startssl.com</a> and click on the keys icon on the right hand side to log in. Select the <b>Control panel</b> then <b>Validations Wizard</b> and choose <b>Email address validation</b>. Enter your email address, then wait for the validation email to show up in your inbox. It will contain a code when you can then enter.
735 
 </p>
 748 
 </p>
736
749
737 
 <p>
 750 
 <p>
787 
 </p>
 800 
 </p>
788 
 </div>
 801 
 </div>
789 
 </div>
 802 
 </div>
790 
-<div id="outline-container-sec-14" class="outline-2">
791 
-<h2 id="sec-14"><span class="section-number-2">14</span> Why use self-signed certificates?</h2>
792 
-<div class="outline-text-2" id="text-14">
803 
+<div id="outline-container-orgheadline14" class="outline-2">
804 
+<h2 id="orgheadline14">Why use self-signed certificates?</h2>
805 
+<div class="outline-text-2" id="text-orgheadline14">
793 
 <p>
 806 
 <p>
794 
 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.
 807 
 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.
795 
 </p>
 808 
 </p>
803 
 </p>
 816 
 </p>
804 
 </div>
 817 
 </div>
805 
 </div>
 818 
 </div>
806 
-<div id="outline-container-sec-15" class="outline-2">
807 
-<h2 id="sec-15"><span class="section-number-2">15</span> Why not use the services of $company instead? They took the Seppuku pledge</h2>
808 
-<div class="outline-text-2" id="text-15">
819 
+<div id="outline-container-orgheadline15" class="outline-2">
820 
+<h2 id="orgheadline15">Why not use the services of $company instead? They took the Seppuku pledge</h2>
821 
+<div class="outline-text-2" id="text-orgheadline15">
809 
 <p>
 822 
 <p>
810 
-<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.
823 
+<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.
811 
 </p>
 824 
 </p>
812 
 </div>
 825 
 </div>
813 
 </div>
 826 
 </div>
814 
-<div id="outline-container-sec-16" class="outline-2">
815 
-<h2 id="sec-16"><span class="section-number-2">16</span> Why does my email keep getting rejected as spam by Gmail/etc?</h2>
816 
-<div class="outline-text-2" id="text-16">
827 
+<div id="outline-container-orgheadline16" class="outline-2">
828 
+<h2 id="orgheadline16">Why does my email keep getting rejected as spam by Gmail/etc?</h2>
829 
+<div class="outline-text-2" id="text-orgheadline16">
817 
 <p>
 830 
 <p>
818 
 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.
 831 
 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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 <div id="postamble" class="status">
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-<p class="author">Author: Bob Mottram</p>
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-<p class="date">Created: 2015-10-27 Tue 11:37</p>
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-<p class="creator"><a href="http://www.gnu.org/software/emacs/">Emacs</a> 24.4.1 (<a href="http://orgmode.org">Org</a> mode 8.2.10)</p>
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-<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
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+
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+<style type="text/css">
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+.back-to-top {
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+    position: fixed;
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+    bottom: 2em;
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+    right: 0px;
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+    text-decoration: none;
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+    color: #000000;
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+    background-color: rgba(235, 235, 235, 0.80);
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+    font-size: 12px;
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+    padding: 1em;
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+    display: none;
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+}
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+
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+.back-to-top:hover {
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+    background-color: rgba(135, 135, 135, 0.50);
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+}
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+</style>
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+
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+<div class="back-to-top">
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+<a href="#top">Back to top</a> | <a href="mailto:bob@robotics.uk.to">E-mail me</a>
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+</div>
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+
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+<script type="text/javascript">
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+    var offset = 220;
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+    var duration = 500;
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+    jQuery(window).scroll(function() {
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+        if (jQuery(this).scrollTop() > offset) {
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+            jQuery('.back-to-top').fadeIn(duration);
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+        } else {
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+            jQuery('.back-to-top').fadeOut(duration);
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+        }
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+    });
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+</script>
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