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  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21
  22     <div class="entry">
  23       <div class="title"><a href="http://people.skolelinux.org/pere/blog/New_and_improved_Frikanalen_Kodi_addon_version_0_0_3.html">New and improved Frikanalen Kodi addon version 0.0.3</a></div>
  24       <div class="date"> 8th November 2018</div>
  25       <div class="body"><p>If you read my blog regularly, you probably know I am involved in
  26 running and developing the <a href="https://frikanalen.no/">Norwegian
  27 TV channel Frikanalen</a>.  It is an open channel, allowing everyone
  28 in Norway to publish videos on a TV channel with national coverage.
  29 You can think of it as Youtube for national television.
  30 In addition to distribution on RiksTV and Uninett, Frikanalen is also
  31 available as a Kodi addon.  The last few days I have updated the code
  32 to add more features.  A
  33 <a href="https://kodi.tv/addon/plugins-video-add-ons/frikanalen-nett-tv">new
  34 and improved version 0.0.3 Frikanalen addon</a> was just made
  35 available via the Kodi repositories.  This new version include a
  36 option to browse videos by category, as well as free text search
  37 in the video archive.  It will now also show the video duration in the
  38 video lists, which were missing earlier.  A new and experimental
  39 link to the HD video stream currently being worked on is provided, for
  40 those that want to see what the <a href="https://casparcg.com/">CasparCG</a>
  41 output look like.  The alternative is the SD video stream, generated
  42 using MLT.  CasparCG is controlled by our
  43 <a href="https://github.com/Frikanalen/mltplayout/">mltplayout
  44 server</a> which instead of talking to mlt is giving PLAY instructions
  45 to the CasparCG server when it is time to start a new program.</p>
  46
  47 <p>By now, you are probably wondering what kind of content is being
  48 played on the video.  These days, it is filled with technical
  49 presentations like those from <a href="https://www.nuug.no/">NUUG</a>,
  50 <a href="https://www.debconf.org/">Debconf</a>, Makercon, and TED,
  51 but there are also some periods with
  52 <a href="https://www.empo.no/">EMPT TV</a> and
  53 <a href="https://www.p7.no/">P7</a>.
  54
  55 <p>As usual, if you use Bitcoin and want to show your support of my
  56 activities, please send Bitcoin donations to my address
  57 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
  58 </div>
  59       <div class="tags">
  60
  61
  62         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
  63
  64
  65       </div>
  66     </div>
  67     <div class="padding"></div>
  68
  69     <div class="entry">
  70       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Time_for_an_official_MIME_type_for_patches_.html">Time for an official MIME type for patches?</a></div>
  71       <div class="date"> 1st November 2018</div>
  72       <div class="body"><p>As part of my involvement in
  73 <a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core">the Nikita
  74 archive API project</a>, I've been importing a fairly large lump of
  75 emails into a test instance of the archive to see how well this would
  76 go.  I picked a subset of <a href="https://notmuchmail.org/">my
  77 notmuch email database</a>, all public emails sent to me via
  78 @lists.debian.org, giving me a set of around 216 000 emails to import.
  79 In the process, I had a look at the various attachments included in
  80 these emails, to figure out what to do with attachments, and noticed
  81 that one of the most common attachment formats do not have
  82 <a href="https://www.iana.org/assignments/media-types/media-types.xhtml">an
  83 official MIME type</a> registered with IANA/IETF.  The output from
  84 diff, ie the input for patch, is on the top 10 list of formats
  85 included in these emails.  At the moment people seem to use either
  86 text/x-patch or text/x-diff, but neither is officially registered.  It
  87 would be better if one official MIME type were registered and used
  88 everywhere.</p>
  89
  90 <p>To try to get one official MIME type for these files, I've brought
  91 up the topic on
  92 <a href="https://www.ietf.org/mailman/listinfo/media-types">the
  93 media-types mailing list</a>.  If you are interested in discussion
  94 which MIME type to use as the official for patch files, or involved in
  95 making software using a MIME type for patches, perhaps you would like
  96 to join the discussion?</p>
  97
  98 <p>As usual, if you use Bitcoin and want to show your support of my
  99 activities, please send Bitcoin donations to my address
 100 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 101 </div>
 102       <div class="tags">
 103
 104
 105         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
 106
 107
 108       </div>
 109     </div>
 110     <div class="padding"></div>
 111
 112     <div class="entry">
 113       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Measuring_the_speaker_frequency_response_using_the_AUDMES_free_software_GUI___nice_free_software.html">Measuring the speaker frequency response using the AUDMES free software GUI - nice free software</a></div>
 114       <div class="date">22nd October 2018</div>
 115       <div class="body"><p><img src="http://people.skolelinux.org/pere/blog/images/2018-10-22-audmes-measure-speakers.png" align="right" width="40%"/></p>
 116
 117 <p>My current home stereo is a patchwork of various pieces I got on
 118 flee markeds over the years.  It is amazing what kind of equipment
 119 show up there.  I've been wondering for a while if it was possible to
 120 measure how well this equipment is working together, and decided to
 121 see how far I could get using free software.  After trawling the web I
 122 came across an article from DIY Audio and Video on
 123 <a href="https://www.diyaudioandvideo.com/Tutorial/SpeakerResponseTesting/">Speaker
 124 Testing and Analysis</a> describing how to test speakers, and it listing
 125 several software options, among them
 126 <a href="https://sourceforge.net/projects/audmes/">AUDio MEasurement
 127 System (AUDMES)</a>.  It is the only free software system I could find
 128 focusing on measuring speakers and audio frequency response.  In the
 129 process I also found an interesting article from NOVO on
 130 <a href="http://novo.press/understanding-speaker-specifications-and-frequency-response/">Understanding
 131 Speaker Specifications and Frequency Response</a> and an article from
 132 ecoustics on
 133 <a href="https://www.ecoustics.com/articles/understanding-speaker-frequency-response/">Understanding
 134 Speaker Frequency Response</a>, with a lot of information on what to
 135 look for and how to interpret the graphs.  Armed with this knowledge,
 136 I set out to measure the state of my speakers.</p>
 137
 138 <p>The first hurdle was that AUDMES hadn't seen a commit for 10 years
 139 and did not build with current compilers and libraries.  I got in
 140 touch with its author, who no longer was spending time on the program
 141 but gave me write access to the subversion repository on Sourceforge.
 142 The end result is that now the code build on Linux and is capable of
 143 saving and loading the collected frequency response data in CSV
 144 format.  The application is quite nice and flexible, and I was able to
 145 select the input and output audio interfaces independently.  This made
 146 it possible to use a USB mixer as the input source, while sending
 147 output via my laptop headphone connection.  I lacked the hardware and
 148 cabling to figure out a different way to get independent cabling to
 149 speakers and microphone.</p>
 150
 151 <p>Using this setup I could see how a large range of high frequencies
 152 apparently were not making it out of my speakers.  The picture show
 153 the frequency response measurement of one of the speakers.  Note the
 154 frequency lines seem to be slightly misaligned, compared to the CSV
 155 output from the program.  I can not hear several of these are high
 156 frequencies, according to measurement from
 157 <a href="http://freehearingtestsoftware.com">Free Hearing Test
 158 Software</a>, an freeware system to measure your hearing (still
 159 looking for a free software alternative), so I do not know if they are
 160 coming out out the speakers.  I thus do not quite know how to figure
 161 out if the missing frequencies is a problem with the microphone, the
 162 amplifier or the speakers, but I managed to rule out the audio card in my
 163 PC by measuring my Bose noise canceling headset using its own
 164 microphone.  This setup was able to see the high frequency tones, so
 165 the problem with my stereo had to be in the amplifier or speakers.</p>
 166
 167 <p>Anyway, to try to role out one factor I ended up picking up a new
 168 set of speakers at a flee marked, and these work a lot better than the
 169 old speakers, so I guess the microphone and amplifier is OK.  If you
 170 need to measure your own speakers, check out AUDMES.  If more people
 171 get involved, perhaps the project could become good enough to
 172 <a href="https://bugs.debian.org/910876">include in Debian</a>?  And if
 173 you know of some other free software to measure speakers and amplifier
 174 performance, please let me know.  I am aware of the freeware option
 175 <a href="https://www.roomeqwizard.com/">REW</a>, but I want something
 176 that can be developed also when the vendor looses interest.</p>
 177
 178 <p>As usual, if you use Bitcoin and want to show your support of my
 179 activities, please send Bitcoin donations to my address
 180 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 181 </div>
 182       <div class="tags">
 183
 184
 185         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software</a>.
 186
 187
 188       </div>
 189     </div>
 190     <div class="padding"></div>
 191
 192     <div class="entry">
 193       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Web_browser_integration_of_VLC_with_Bittorrent_support.html">Web browser integration of VLC with Bittorrent support</a></div>
 194       <div class="date">21st October 2018</div>
 195       <div class="body"><p>Bittorrent is as far as I know, currently the most efficient way to
 196 distribute content on the Internet.  It is used all by all sorts of
 197 content providers, from national TV stations like
 198 <a href="https://www.nrk.no/">NRK</a>, Linux distributors like
 199 <a href="https://www.debian.org/">Debian</a> and
 200 <a href="https://www.ubuntu.com/">Ubuntu</a>, and of course the
 201 <a href="https://archive.org/">Internet archive</A>.
 202
 203 <p>Almost a month ago
 204 <a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">a new
 205 package adding Bittorrent support to VLC</a> became available in
 206 Debian testing and unstable.  To test it, simply install it like
 207 this:</p>
 208
 209 <p><pre>
 210 apt install vlc-plugin-bittorrent
 211 </pre></p>
 212
 213 <p>Since the plugin was made available for the first time in Debian,
 214 several improvements have been made to it.  In version 2.2-4, now
 215 available in both testing and unstable, a desktop file is provided to
 216 teach browsers to start VLC when the user click on torrent files or
 217 magnet links.  The last part is thanks to me finally understanding
 218 what the strange x-scheme-handler style MIME types in desktop files
 219 are used for.  By adding x-scheme-handler/magnet to the MimeType entry
 220 in the desktop file, at least the browsers Firefox and Chromium will
 221 suggest to start VLC when selecting a magnet URI on a web page.  The
 222 end result is that now, with the plugin installed in Buster and Sid,
 223 one can visit any
 224 <a href="https://archive.org/details/CopyingIsNotTheft1080p">Internet
 225 Archive page with movies</a> using a web browser and click on the
 226 torrent link to start streaming the movie.</p>
 227
 228 <p>Note, there is still some misfeatures in the plugin.  One is the
 229 fact that it will hang and
 230 <a href="https://github.com/johang/vlc-bittorrent/issues/13">block VLC
 231 from exiting until the torrent streaming starts</a>.  Another is the
 232 fact that it
 233 <a href="https://github.com/johang/vlc-bittorrent/issues/9">will pick
 234 and play a random file in a multi file torrent</a>.  This is not
 235 always the video file you want.  Combined with the first it can be a
 236 bit hard to get the video streaming going.  But when it work, it seem
 237 to do a good job.</p>
 238
 239 <p>For the Debian packaging, I would love to find a good way to test
 240 if the plugin work with VLC using autopkgtest.  I tried, but do not
 241 know enough of the inner workings of VLC to get it working.  For now
 242 the autopkgtest script is only checking if the .so file was
 243 successfully loaded by VLC.  If you have any suggestions, please
 244 submit a patch to the Debian bug tracking system.</p>
 245
 246 <p>As usual, if you use Bitcoin and want to show your support of my
 247 activities, please send Bitcoin donations to my address
 248 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 249 </div>
 250       <div class="tags">
 251
 252
 253         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 254
 255
 256       </div>
 257     </div>
 258     <div class="padding"></div>
 259
 260     <div class="entry">
 261       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Release_0_2_of_free_software_archive_system_Nikita_announced.html">Release 0.2 of free software archive system Nikita announced</a></div>
 262       <div class="date">18th October 2018</div>
 263       <div class="body"><p>This morning, the new release of the
 264 <a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita
 265 Noark 5 core project</a> was
 266 <a href="https://lists.nuug.no/pipermail/nikita-noark/2018-October/000406.html">announced
 267 on the project mailing list</a>.  The free software solution is an
 268 implementation of the Norwegian archive standard Noark 5 used by
 269 government offices in Norway.  These were the changes in version 0.2
 270 since version 0.1.1 (from NEWS.md):
 271
 272 <ul>
 273   <li>Fix typos in REL names</li>
 274   <li>Tidy up error message reporting</li>
 275   <li>Fix issue where we used Integer.valueOf(), not Integer.getInteger()</li>
 276   <li>Change some String handling to StringBuffer</li>
 277   <li>Fix error reporting</li>
 278   <li>Code tidy-up</li>
 279   <li>Fix issue using static non-synchronized SimpleDateFormat to avoid
 280       race conditions</li>
 281   <li>Fix problem where deserialisers were treating integers as strings</li>
 282   <li>Update methods to make them null-safe</li>
 283   <li>Fix many issues reported by coverity</li>
 284   <li>Improve equals(), compareTo() and hash() in domain model</li>
 285   <li>Improvements to the domain model for metadata classes</li>
 286   <li>Fix CORS issues when downloading document</li>
 287   <li>Implementation of case-handling with registryEntry and document upload</li>
 288   <li>Better support in Javascript for OPTIONS</li>
 289   <li>Adding concept description of mail integration</li>
 290   <li>Improve setting of default values for GET on ny-journalpost</li>
 291   <li>Better handling of required values during deserialisation </li>
 292   <li>Changed tilknyttetDato (M620) from date to dateTime</li>
 293   <li>Corrected some opprettetDato (M600) (de)serialisation errors.</li>
 294   <li>Improve parse error reporting.</li>
 295   <li>Started on OData search and filtering.</li>
 296   <li>Added Contributor Covenant Code of Conduct to project.</li>
 297   <li>Moved repository and project from Github to Gitlab.</li>
 298   <li>Restructured repository, moved code into src/ and web/.</li>
 299   <li>Updated code to use Spring Boot version 2.</li>
 300   <li>Added support for OAuth2 authentication.</li>
 301   <li>Fixed several bugs discovered by Coverity.</li>
 302   <li>Corrected handling of date/datetime fields.</li>
 303   <li>Improved error reporting when rejecting during deserializatoin.</li>
 304   <li>Adjusted default values provided for ny-arkivdel, ny-mappe,
 305    ny-saksmappe, ny-journalpost and ny-dokumentbeskrivelse.</li>
 306   <li>Several fixes for korrespondansepart*.</li>
 307   <li>Updated web GUI:
 308      <ul>
 309        <li>Now handle both file upload and download.</li>
 310        <li>Uses new OAuth2 authentication for login.</li>
 311        <li>Forms now fetches default values from API using GET.</li>
 312        <li>Added RFC 822 (email), TIFF and JPEG to list of possible file formats.</li>
 313      </ul></li>
 314 </ul>
 315
 316 <p>The changes and improvements are extensive.  Running diffstat on
 317 the changes between git tab 0.1.1 and 0.2 show 1098 files changed,
 318 108666 insertions(+), 54066 deletions(-).</p>
 319
 320 <p>If free and open standardized archiving API sound interesting to
 321 you, please contact us on IRC
 322 (<a href="irc://irc.freenode.net/%23nikita">#nikita on
 323 irc.freenode.net</a>) or email
 324 (<a href="https://lists.nuug.no/mailman/listinfo/nikita-noark">nikita-noark
 325 mailing list</a>).</p>
 326
 327 <p>As usual, if you use Bitcoin and want to show your support of my
 328 activities, please send Bitcoin donations to my address
 329 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 330 </div>
 331       <div class="tags">
 332
 333
 334         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
 335
 336
 337       </div>
 338     </div>
 339     <div class="padding"></div>
 340
 341     <div class="entry">
 342       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Fetching_trusted_timestamps_using_the_rfc3161ng_python_module.html">Fetching trusted timestamps using the rfc3161ng python module</a></div>
 343       <div class="date"> 8th October 2018</div>
 344       <div class="body"><p>I have  earlier covered the basics of trusted timestamping using the
 345 'openssl ts' client.  See blog post for
 346 <a href="http://people.skolelinux.org/pere/blog/Public_Trusted_Timestamping_services_for_everyone.html">2014</a>,
 347 <a href="http://people.skolelinux.org/pere/blog/syslog_trusted_timestamp___chain_of_trusted_timestamps_for_your_syslog.html">2016</a>
 348 and
 349 <a href="http://people.skolelinux.org/pere/blog/Idea_for_storing_trusted_timestamps_in_a_Noark_5_archive.html">2017</a>
 350 for those stories.  But some times I want to integrate the timestamping
 351 in other code, and recently I needed to integrate it into Python.
 352 After searching a bit, I found
 353 <a href="https://dev.entrouvert.org/projects/python-rfc3161">the
 354 rfc3161 library</a> which seemed like a good fit, but I soon
 355 discovered it only worked for python version 2, and I needed something
 356 that work with python version 3.  Luckily I next came across
 357 <a href="https://github.com/trbs/rfc3161ng/">the rfc3161ng library</a>,
 358 a fork of the original rfc3161 library.  Not only is it working with
 359 python 3, it have fixed a few of the bugs in the original library, and
 360 it has an active maintainer.  I decided to wrap it up and make it
 361 <a href="https://tracker.debian.org/pkg/python-rfc3161ng">available in
 362 Debian</a>, and a few days ago it entered Debian unstable and testing.</p>
 363
 364 <p>Using the library is fairly straight forward.  The only slightly
 365 problematic step is to fetch the required certificates to verify the
 366 timestamp.  For some services it is straight forward, while for others
 367 I have not yet figured out how to do it.  Here is a small standalone
 368 code example based on of the integration tests in the library code:</p>
 369
 370 <pre>
 371 #!/usr/bin/python3
 372
 373 """
 374
 375 Python 3 script demonstrating how to use the rfc3161ng module to
 376 get trusted timestamps.
 377
 378 The license of this code is the same as the license of the rfc3161ng
 379 library, ie MIT/BSD.
 380
 381 """
 382
 383 import os
 384 import pyasn1.codec.der
 385 import rfc3161ng
 386 import subprocess
 387 import tempfile
 388 import urllib.request
 389
 390 def store(f, data):
 391     f.write(data)
 392     f.flush()
 393     f.seek(0)
 394
 395 def fetch(url, f=None):
 396     response = urllib.request.urlopen(url)
 397     data = response.read()
 398     if f:
 399         store(f, data)
 400     return data
 401
 402 def main():
 403     with tempfile.NamedTemporaryFile() as cert_f,\
 404          tempfile.NamedTemporaryFile() as ca_f,\
 405          tempfile.NamedTemporaryFile() as msg_f,\
 406          tempfile.NamedTemporaryFile() as tsr_f:
 407
 408         # First fetch certificates used by service
 409         certificate_data = fetch('https://freetsa.org/files/tsa.crt', cert_f)
 410         ca_data_data = fetch('https://freetsa.org/files/cacert.pem', ca_f)
 411
 412         # Then timestamp the message
 413         timestamper = \
 414             rfc3161ng.RemoteTimestamper('http://freetsa.org/tsr',
 415                                         certificate=certificate_data)
 416         data = b"Python forever!\n"
 417         tsr = timestamper(data=data, return_tsr=True)
 418
 419         # Finally, convert message and response to something 'openssl ts' can verify
 420         store(msg_f, data)
 421         store(tsr_f, pyasn1.codec.der.encoder.encode(tsr))
 422         args = ["openssl", "ts", "-verify",
 423                 "-data", msg_f.name,
 424                 "-in", tsr_f.name,
 425                 "-CAfile", ca_f.name,
 426                 "-untrusted", cert_f.name]
 427         subprocess.check_call(args)
 428
 429 if '__main__' == __name__:
 430    main()
 431 </pre>
 432
 433 <p>The code fetches the required certificates, store them as temporary
 434 files, timestamp a simple message, store the message and timestamp to
 435 disk and ask 'openssl ts' to verify the timestamp.  A timestamp is
 436 around 1.5 kiB in size, and should be fairly easy to store for future
 437 use.</p>
 438
 439 <p>As usual, if you use Bitcoin and want to show your support of my
 440 activities, please send Bitcoin donations to my address
 441 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 442 </div>
 443       <div class="tags">
 444
 445
 446         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>.
 447
 448
 449       </div>
 450     </div>
 451     <div class="padding"></div>
 452
 453     <div class="entry">
 454       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Automatic_Google_Drive_sync_using_grive_in_Debian.html">Automatic Google Drive sync using grive in Debian</a></div>
 455       <div class="date"> 4th October 2018</div>
 456       <div class="body"><p>A few days, I rescued a Windows victim over to Debian.  To try to
 457 rescue the remains, I helped set up automatic sync with Google Drive.
 458 I did not find any sensible Debian package handling this
 459 automatically, so I rebuild the grive2 source from
 460 <a href="http://www.webupd8.org/">the Ubuntu UPD8 PPA</a> to do the
 461 task and added a autostart desktop entry and a small shell script to
 462 run in the background while the user is logged in to do the sync.
 463 Here is a sketch of the setup for future reference.</p>
 464
 465 <p>I first created <tt>~/googledrive</tt>, entered the directory and
 466 ran '<tt>grive -a</tt>' to authenticate the machine/user.  Next, I
 467 created a autostart hook in <tt>~/.config/autostart/grive.desktop</tt>
 468 to start the sync when the user log in:</p>
 469
 470 <p><blockquote><pre>
 471 [Desktop Entry]
 472 Name=Google drive autosync
 473 Type=Application
 474 Exec=/home/user/bin/grive-sync
 475 </pre></blockquote></p>
 476
 477 <p>Finally, I wrote the <tt>~/bin/grive-sync</tt> script to sync
 478 ~/googledrive/ with the files in Google Drive.</p>
 479
 480 <p><blockquote><pre>
 481 #!/bin/sh
 482 set -e
 483 cd ~/
 484 cleanup() {
 485     if [ "$syncpid" ] ; then
 486         kill $syncpid
 487     fi
 488 }
 489 trap cleanup EXIT INT QUIT
 490 /usr/lib/grive/grive-sync.sh listen googledrive 2>&1 | sed "s%^%$0:%" &
 491 syncpdi=$!
 492 while true; do
 493     if ! xhost >/dev/null 2>&1 ; then
 494         echo "no DISPLAY, exiting as the user probably logged out"
 495         exit 1
 496     fi
 497     if [ ! -e /run/user/1000/grive-sync.sh_googledrive ] ; then
 498         /usr/lib/grive/grive-sync.sh sync googledrive
 499     fi
 500     sleep 300
 501 done 2>&1 | sed "s%^%$0:%"
 502 </pre></blockquote></p>
 503
 504 <p>Feel free to use the setup if you want.  It can be assumed to be
 505 GNU GPL v2 licensed (or any later version, at your leisure), but I
 506 doubt this code is possible to claim copyright on.</p>
 507
 508 <p>As usual, if you use Bitcoin and want to show your support of my
 509 activities, please send Bitcoin donations to my address
 510 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 511 </div>
 512       <div class="tags">
 513
 514
 515         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 516
 517
 518       </div>
 519     </div>
 520     <div class="padding"></div>
 521
 522     <div class="entry">
 523       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html">Valutakrambod - A python and bitcoin love story</a></div>
 524       <div class="date">29th September 2018</div>
 525       <div class="body"><p>It would come as no surprise to anyone that I am interested in
 526 bitcoins and virtual currencies.  I've been keeping an eye on virtual
 527 currencies for many years, and it is part of the reason a few months
 528 ago, I started writing a python library for collecting currency
 529 exchange rates and trade on virtual currency exchanges.  I decided to
 530 name the end result valutakrambod, which perhaps can be translated to
 531 small currency shop.</p>
 532
 533 <p>The library uses the tornado python library to handle HTTP and
 534 websocket connections, and provide a asynchronous system for
 535 connecting to and tracking several services.  The code is available
 536 from
 537 <a href="http://github.com/petterreinholdtsen/valutakrambod">github</a>.</p>
 538
 539 </p>There are two example clients of the library.  One is very simple and
 540 list every updated buy/sell price received from the various services.
 541 This code is started by running bin/btc-rates and call the client code
 542 in valutakrambod/client.py.  The simple client look like this:</p>
 543
 544 <p><blockquote><pre>
 545 import functools
 546 import tornado.ioloop
 547 import valutakrambod
 548 class SimpleClient(object):
 549     def __init__(self):
 550         self.services = []
 551         self.streams = []
 552         pass
 553     def newdata(self, service, pair, changed):
 554         print("%-15s %s-%s: %8.3f %8.3f" % (
 555             service.servicename(),
 556             pair[0],
 557             pair[1],
 558             service.rates[pair]['ask'],
 559             service.rates[pair]['bid'])
 560         )
 561     async def refresh(self, service):
 562         await service.fetchRates(service.wantedpairs)
 563     def run(self):
 564         self.ioloop = tornado.ioloop.IOLoop.current()
 565         self.services = valutakrambod.service.knownServices()
 566         for e in self.services:
 567             service = e()
 568             service.subscribe(self.newdata)
 569             stream = service.websocket()
 570             if stream:
 571                 self.streams.append(stream)
 572             else:
 573                 # Fetch information from non-streaming services immediately
 574                 self.ioloop.call_later(len(self.services),
 575                                        functools.partial(self.refresh, service))
 576                 # as well as regularly
 577                 service.periodicUpdate(60)
 578         for stream in self.streams:
 579             stream.connect()
 580         try:
 581             self.ioloop.start()
 582         except KeyboardInterrupt:
 583             print("Interrupted by keyboard, closing all connections.")
 584             pass
 585         for stream in self.streams:
 586             stream.close()
 587 </pre></blockquote></p>
 588
 589 <p>The library client loops over all known "public" services,
 590 initialises it, subscribes to any updates from the service, checks and
 591 activates websocket streaming if the service provide it, and if no
 592 streaming is supported, fetches information from the service and sets
 593 up a periodic update every 60 seconds.  The output from this client
 594 can look like this:</p>
 595
 596 <p><blockquote><pre>
 597 Bl3p            BTC-EUR: 5687.110 5653.690
 598 Bl3p            BTC-EUR: 5687.110 5653.690
 599 Bl3p            BTC-EUR: 5687.110 5653.690
 600 Hitbtc          BTC-USD: 6594.560 6593.690
 601 Hitbtc          BTC-USD: 6594.560 6593.690
 602 Bl3p            BTC-EUR: 5687.110 5653.690
 603 Hitbtc          BTC-USD: 6594.570 6593.690
 604 Bitstamp        EUR-USD:    1.159    1.154
 605 Hitbtc          BTC-USD: 6594.570 6593.690
 606 Hitbtc          BTC-USD: 6594.580 6593.690
 607 Hitbtc          BTC-USD: 6594.580 6593.690
 608 Hitbtc          BTC-USD: 6594.580 6593.690
 609 Bl3p            BTC-EUR: 5687.110 5653.690
 610 Paymium         BTC-EUR: 5680.000 5620.240
 611 </pre></blockquote></p>
 612
 613 <p>The exchange order book is tracked in addition to the best buy/sell
 614 price, for those that need to know the details.</p>
 615
 616 <p>The other example client is focusing on providing a curses view
 617 with updated buy/sell prices as soon as they are received from the
 618 services.  This code is located in bin/btc-rates-curses and activated
 619 by using the '-c' argument.  Without the argument the "curses" output
 620 is printed without using curses, which is useful for debugging.  The
 621 curses view look like this:</p>
 622
 623 <p><blockquote><pre>
 624            Name Pair   Bid         Ask         Spr    Ftcd    Age
 625  BitcoinsNorway BTCEUR   5591.8400   5711.0800   2.1%   16    nan     60
 626        Bitfinex BTCEUR   5671.0000   5671.2000   0.0%   16     22     59
 627         Bitmynt BTCEUR   5580.8000   5807.5200   3.9%   16     41     60
 628          Bitpay BTCEUR   5663.2700         nan   nan%   15    nan     60
 629        Bitstamp BTCEUR   5664.8400   5676.5300   0.2%    0      1      1
 630            Bl3p BTCEUR   5653.6900   5684.9400   0.5%    0    nan     19
 631        Coinbase BTCEUR   5600.8200   5714.9000   2.0%   15    nan    nan
 632          Kraken BTCEUR   5670.1000   5670.2000   0.0%   14     17     60
 633         Paymium BTCEUR   5620.0600   5680.0000   1.1%    1   7515    nan
 634  BitcoinsNorway BTCNOK  52898.9700  54034.6100   2.1%   16    nan     60
 635         Bitmynt BTCNOK  52960.3200  54031.1900   2.0%   16     41     60
 636          Bitpay BTCNOK  53477.7833         nan   nan%   16    nan     60
 637        Coinbase BTCNOK  52990.3500  54063.0600   2.0%   15    nan    nan
 638         MiraiEx BTCNOK  52856.5300  54100.6000   2.3%   16    nan    nan
 639  BitcoinsNorway BTCUSD   6495.5300   6631.5400   2.1%   16    nan     60
 640        Bitfinex BTCUSD   6590.6000   6590.7000   0.0%   16     23     57
 641          Bitpay BTCUSD   6564.1300         nan   nan%   15    nan     60
 642        Bitstamp BTCUSD   6561.1400   6565.6200   0.1%    0      2      1
 643        Coinbase BTCUSD   6504.0600   6635.9700   2.0%   14    nan    117
 644          Gemini BTCUSD   6567.1300   6573.0700   0.1%   16     89    nan
 645          Hitbtc+BTCUSD   6592.6200   6594.2100   0.0%    0      0      0
 646          Kraken BTCUSD   6565.2000   6570.9000   0.1%   15     17     58
 647   Exchangerates EURNOK      9.4665      9.4665   0.0%   16 107789    nan
 648      Norgesbank EURNOK      9.4665      9.4665   0.0%   16 107789    nan
 649        Bitstamp EURUSD      1.1537      1.1593   0.5%    4      5      1
 650   Exchangerates EURUSD      1.1576      1.1576   0.0%   16 107789    nan
 651  BitcoinsNorway LTCEUR      1.0000     49.0000  98.0%   16    nan    nan
 652  BitcoinsNorway LTCNOK    492.4800    503.7500   2.2%   16    nan     60
 653  BitcoinsNorway LTCUSD      1.0221     49.0000  97.9%   15    nan    nan
 654      Norgesbank USDNOK      8.1777      8.1777   0.0%   16 107789    nan
 655 </pre></blockquote></p>
 656
 657 <p>The code for this client is too complex for a simple blog post, so
 658 you will have to check out the git repository to figure out how it
 659 work.  What I can tell is how the three last numbers on each line
 660 should be interpreted.  The first is how many seconds ago information
 661 was received from the service.  The second is how long ago, according
 662 to the service, the provided information was updated.  The last is an
 663 estimate on how often the buy/sell values change.</p>
 664
 665 <p>If you find this library useful, or would like to improve it, I
 666 would love to hear from you.  Note that for some of the services I've
 667 implemented a trading API.  It might be the topic of a future blog
 668 post.</p>
 669
 670 <p>As usual, if you use Bitcoin and want to show your support of my
 671 activities, please send Bitcoin donations to my address
 672 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 673 </div>
 674       <div class="tags">
 675
 676
 677         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 678
 679
 680       </div>
 681     </div>
 682     <div class="padding"></div>
 683
 684     <div class="entry">
 685       <div class="title"><a href="http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html">VLC in Debian now can do bittorrent streaming</a></div>
 686       <div class="date">24th September 2018</div>
 687       <div class="body"><p>Back in February, I got curious to see
 688 <a href="http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html">if
 689 VLC now supported Bittorrent streaming</a>.  It did not, despite the
 690 fact that the idea and code to handle such streaming had been floating
 691 around for years.  I did however find
 692 <a href="https://github.com/johang/vlc-bittorrent">a standalone plugin
 693 for VLC</a> to do it, and half a year later I decided to wrap up the
 694 plugin and get it into Debian.  I uploaded it to NEW a few days ago,
 695 and am very happy to report that it
 696 <a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">entered
 697 Debian</a> a few hours ago, and should be available in Debian/Unstable
 698 tomorrow, and Debian/Testing in a few days.</p>
 699
 700 <p>With the vlc-plugin-bittorrent package installed you should be able
 701 to stream videos using a simple call to</p>
 702
 703 <p><blockquote><pre>
 704 vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent
 705 </pre></blockquote></p>
 706
 707 </p>It can handle magnet links too.  Now if only native vlc had
 708 bittorrent support.  Then a lot more would be helping each other to
 709 share public domain and creative commons movies.  The plugin need some
 710 stability work with seeking and picking the right file in a torrent
 711 with many files, but is already usable.  Please note that the plugin
 712 is not removing downloaded files when vlc is stopped, so it can fill
 713 up your disk if you are not careful.  Have fun. :)</p>
 714
 715 <p>I would love to get help maintaining this package.  Get in touch if
 716 you are interested.</p>
 717
 718 <p>As usual, if you use Bitcoin and want to show your support of my
 719 activities, please send Bitcoin donations to my address
 720 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 721 </div>
 722       <div class="tags">
 723
 724
 725         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 726
 727
 728       </div>
 729     </div>
 730     <div class="padding"></div>
 731
 732     <div class="entry">
 733       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html">Using the Kodi API to play Youtube videos</a></div>
 734       <div class="date"> 2nd September 2018</div>
 735       <div class="body"><p>I continue to explore my Kodi installation, and today I wanted to
 736 tell it to play a youtube URL I received in a chat, without having to
 737 insert search terms using the on-screen keyboard.  After searching the
 738 web for API access to the Youtube plugin and testing a bit, I managed
 739 to find a recipe that worked.  If you got a kodi instance with its API
 740 available from http://kodihost/jsonrpc, you can try the following to
 741 have check out a nice cover band.</p>
 742
 743 <p><blockquote><pre>curl --silent --header 'Content-Type: application/json' \
 744   --data-binary '{ "id": 1, "jsonrpc": "2.0", "method": "Player.Open",
 745   "params": {"item": { "file":
 746   "plugin://plugin.video.youtube/play/?video_id=LuRGVM9O0qg" } } }' \
 747   http://projector.local/jsonrpc</pre></blockquote></p>
 748
 749 <p>I've extended kodi-stream program to take a video source as its
 750 first argument.  It can now handle direct video links, youtube links
 751 and 'desktop' to stream my desktop to Kodi.  It is almost like a
 752 Chromecast. :)</p>
 753
 754 <p>As usual, if you use Bitcoin and want to show your support of my
 755 activities, please send Bitcoin donations to my address
 756 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 757 </div>
 758       <div class="tags">
 759
 760
 761         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 762
 763
 764       </div>
 765     </div>
 766     <div class="padding"></div>
 767
 768     <p style="text-align: right;"><a href="index.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS feed" width="36" height="14" /></a></p>
 769     <div id="sidebar">
 770
 771
 772
 773 <h2>Archive</h2>
 774 <ul>
 775
 776 <li>2018
 777 <ul>
 778
 779 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 780
 781 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 782
 783 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 784
 785 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 786
 787 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 788
 789 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 790
 791 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 792
 793 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 794
 795 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 796
 797 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 798
 799 </ul></li>
 800
 801 <li>2017
 802 <ul>
 803
 804 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 805
 806 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 807
 808 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 809
 810 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 811
 812 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 813
 814 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 815
 816 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 817
 818 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 819
 820 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 821
 822 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 823
 824 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 825
 826 </ul></li>
 827
 828 <li>2016
 829 <ul>
 830
 831 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 832
 833 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 834
 835 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 836
 837 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 838
 839 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 840
 841 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 842
 843 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 844
 845 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 846
 847 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 848
 849 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 850
 851 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 852
 853 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 854
 855 </ul></li>
 856
 857 <li>2015
 858 <ul>
 859
 860 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 861
 862 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 863
 864 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 865
 866 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 867
 868 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 869
 870 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 871
 872 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 873
 874 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 875
 876 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 877
 878 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 879
 880 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 881
 882 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 883
 884 </ul></li>
 885
 886 <li>2014
 887 <ul>
 888
 889 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 890
 891 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 892
 893 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 894
 895 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 896
 897 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 898
 899 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 900
 901 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 902
 903 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 904
 905 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 906
 907 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 908
 909 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 910
 911 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 912
 913 </ul></li>
 914
 915 <li>2013
 916 <ul>
 917
 918 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 919
 920 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 921
 922 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 923
 924 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 925
 926 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 927
 928 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 929
 930 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 931
 932 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 933
 934 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 935
 936 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 937
 938 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 939
 940 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 941
 942 </ul></li>
 943
 944 <li>2012
 945 <ul>
 946
 947 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 948
 949 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 950
 951 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 952
 953 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 954
 955 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 956
 957 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 958
 959 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 960
 961 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 962
 963 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 964
 965 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 966
 967 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 968
 969 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 970
 971 </ul></li>
 972
 973 <li>2011
 974 <ul>
 975
 976 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 977
 978 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 979
 980 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 981
 982 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 983
 984 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 985
 986 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 987
 988 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 989
 990 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 991
 992 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 993
 994 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 995
 996 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 997
 998 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 999
1000 </ul></li>
1001
1002 <li>2010
1003 <ul>
1004
1005 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
1006
1007 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
1008
1009 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
1010
1011 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
1012
1013 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
1014
1015 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
1016
1017 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
1018
1019 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
1020
1021 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
1022
1023 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
1024
1025 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
1026
1027 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
1028
1029 </ul></li>
1030
1031 <li>2009
1032 <ul>
1033
1034 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
1035
1036 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
1037
1038 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
1039
1040 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
1041
1042 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
1043
1044 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
1045
1046 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
1047
1048 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
1049
1050 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
1051
1052 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
1053
1054 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
1055
1056 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
1057
1058 </ul></li>
1059
1060 <li>2008
1061 <ul>
1062
1063 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
1064
1065 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
1066
1067 </ul></li>
1068
1069 </ul>
1070
1071
1072
1073 <h2>Tags</h2>
1074 <ul>
1075
1076  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (16)</a></li>
1077
1078  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
1079
1080  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
1081
1082  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
1083
1084  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (10)</a></li>
1085
1086  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
1087
1088  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
1089
1090  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
1091
1092  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (164)</a></li>
1093
1094  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
1095
1096  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
1097
1098  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
1099
1100  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
1101
1102  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (25)</a></li>
1103
1104  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1105
1106  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (392)</a></li>
1107
1108  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1109
1110  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (13)</a></li>
1111
1112  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (32)</a></li>
1113
1114  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
1115
1116  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (19)</a></li>
1117
1118  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
1119
1120  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
1121
1122  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
1123
1124  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
1125
1126  <li><a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi (4)</a></li>
1127
1128  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1129
1130  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
1131
1132  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1133
1134  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1135
1136  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1137
1138  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1139
1140  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (41)</a></li>
1141
1142  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (11)</a></li>
1143
1144  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (299)</a></li>
1145
1146  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (191)</a></li>
1147
1148  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (34)</a></li>
1149
1150  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1151
1152  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (72)</a></li>
1153
1154  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (107)</a></li>
1155
1156  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
1157
1158  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1159
1160  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1161
1162  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1163
1164  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
1165
1166  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1167
1168  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (6)</a></li>
1169
1170  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1171
1172  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (55)</a></li>
1173
1174  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1175
1176  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1177
1178  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (57)</a></li>
1179
1180  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
1181
1182  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
1183
1184  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (55)</a></li>
1185
1186  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
1187
1188  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1189
1190  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1191
1192  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (13)</a></li>
1193
1194  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (70)</a></li>
1195
1196  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1197
1198  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (41)</a></li>
1199
1200 </ul>
1201
1202
1203     </div>
1204     <p style="text-align: right">
1205  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1206 </p>
1207
1208   </body>
1209 </html>