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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/Is_the_short_movie__Empty_Socks__from_1927_in_the_public_domain_or_not_.html">Is the short movie «Empty Socks» from 1927 in the public domain or not?</a></div>
  24       <div class="date"> 5th December 2017</div>
  25       <div class="body"><p>Three years ago, a presumed lost animation film,
  26 <a href="https://en.wikipedia.org/wiki/Empty_Socks">Empty Socks from
  27 1927</a>, was discovered in the Norwegian National Library.  At the
  28 time it was discovered, it was generally assumed to be copyrighted by
  29 The Walt Disney Company, and I blogged about
  30 <a href="http://people.skolelinux.org/pere/blog/Opphavsretts_status_for__Empty_Socks__fra_1927_.html">my
  31 reasoning to conclude</a> that it would would enter the Norwegian
  32 equivalent of the public domain in 2053, based on my understanding of
  33 Norwegian Copyright Law.  But a few days ago, I came across
  34 <a href="http://www.toonzone.net/forums/threads/exposed-disneys-repurchase-of-oswald-the-rabbit-a-sham.4792291/">a
  35 blog post claiming the movie was already in the public domain</a>, at
  36 least in USA.  The reasoning is as follows: The film was released in
  37 November or Desember 1927 (sources disagree), and presumably
  38 registered its copyright that year.  At that time, right holders of
  39 movies registered by the copyright office received government
  40 protection for there work for 28 years.  After 28 years, the copyright
  41 had to be renewed if the wanted the government to protect it further.
  42 The blog post I found claim such renewal did not happen for this
  43 movie, and thus it entered the public domain in 1956.  Yet someone
  44 claim the copyright was renewed and the movie is still copyright
  45 protected.  Can anyone help me to figure out which claim is correct?
  46 I have not been able to find Empty Socks in Catalog of copyright
  47 entries.  Ser.3 pt.12-13 v.9-12 1955-1958 Motion Pictures
  48 <a href="http://onlinebooks.library.upenn.edu/cce/1955r.html#film">available
  49 from the University of Pennsylvania</a>, neither in
  50 <a href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015084451130;page=root;view=image;size=100;seq=83;num=45">page
  51 45 for the first half of 1955</a>, nor in
  52 <a href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015084451130;page=root;view=image;size=100;seq=175;num=119">page
  53 119 for the second half of 1955</a>.  It is of course possible that
  54 the renewal entry was left out of the printed catalog by mistake.  Is
  55 there some way to rule out this possibility?  Please help, and update
  56 the wikipedia page with your findings.
  57
  58 <p>As usual, if you use Bitcoin and want to show your support of my
  59 activities, please send Bitcoin donations to my address
  60 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
  61 </div>
  62       <div class="tags">
  63
  64
  65         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</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>.
  66
  67
  68       </div>
  69     </div>
  70     <div class="padding"></div>
  71
  72     <div class="entry">
  73       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Metadata_proposal_for_movies_on_the_Internet_Archive.html">Metadata proposal for movies on the Internet Archive</a></div>
  74       <div class="date">28th November 2017</div>
  75       <div class="body"><p>It would be easier to locate the movie you want to watch in
  76 <a href="https://www.archive.org/">the Internet Archive</a>, if the
  77 metadata about each movie was more complete and accurate.  In the
  78 archiving community, a well known saying state that good metadata is a
  79 love letter to the future.  The metadata in the Internet Archive could
  80 use a face lift for the future to love us back.  Here is a proposal
  81 for a small improvement that would make the metadata more useful
  82 today.  I've been unable to find any document describing the various
  83 standard fields available when uploading videos to the archive, so
  84 this proposal is based on my best quess and searching through several
  85 of the existing movies.</p>
  86
  87 <p>I have a few use cases in mind.  First of all, I would like to be
  88 able to count the number of distinct movies in the Internet Archive,
  89 without duplicates.  I would further like to identify the IMDB title
  90 ID of the movies in the Internet Archive, to be able to look up a IMDB
  91 title ID and know if I can fetch the video from there and share it
  92 with my friends.</p>
  93
  94 <p>Second, I would like the Butter data provider for The Internet
  95 archive
  96 (<a href="https://github.com/butterproviders/butter-provider-archive">available
  97 from github</a>), to list as many of the good movies as possible.  The
  98 plugin currently do a search in the archive with the following
  99 parameters:</p>
 100
 101 <p><pre>
 102 collection:moviesandfilms
 103 AND NOT collection:movie_trailers
 104 AND -mediatype:collection
 105 AND format:"Archive BitTorrent"
 106 AND year
 107 </pre></p>
 108
 109 <p>Most of the cool movies that fail to show up in Butter do so
 110 because the 'year' field is missing.  The 'year' field is populated by
 111 the year part from the 'date' field, and should be when the movie was
 112 released (date or year).  Two such examples are
 113 <a href="https://archive.org/details/SidneyOlcottsBen-hur1905">Ben Hur
 114 from 1905</a> and
 115 <a href="https://archive.org/details/Caminandes2GranDillama">Caminandes
 116 2: Gran Dillama from 2013</a>, where the year metadata field is
 117 missing.</p>
 118
 119 So, my proposal is simply, for every movie in The Internet Archive
 120 where an IMDB title ID exist, please fill in these metadata fields
 121 (note, they can be updated also long after the video was uploaded, but
 122 as far as I can tell, only by the uploader):
 123
 124 <dl>
 125
 126 <dt>mediatype</dt>
 127 <dd>Should be 'movie' for movies.</dd>
 128
 129 <dt>collection</dt>
 130 <dd>Should contain 'moviesandfilms'.</dd>
 131
 132 <dt>title</dt>
 133 <dd>The title of the movie, without the publication year.</dd>
 134
 135 <dt>date</dt>
 136 <dd>The data or year the movie was released.  This make the movie show
 137 up in Butter, as well as make it possible to know the age of the
 138 movie and is useful to figure out copyright status.</dd>
 139
 140 <dt>director</dt>
 141 <dd>The director of the movie.  This make it easier to know if the
 142 correct movie is found in movie databases.</dd>
 143
 144 <dt>publisher</dt>
 145 <dd>The production company making the movie.  Also useful for
 146 identifying the correct movie.</dd>
 147
 148 <dt>links</dt>
 149
 150 <dd>Add a link to the IMDB title page, for example like this: &lt;a
 151 href="http://www.imdb.com/title/tt0028496/"&gt;Movie in
 152 IMDB&lt;/a&gt;.  This make it easier to find duplicates and allow for
 153 counting of number of unique movies in the Archive.  Other external
 154 references, like to TMDB, could be added like this too.</dd>
 155
 156 </dl>
 157
 158 <p>I did consider proposing a Custom field for the IMDB title ID (for
 159 example 'imdb_title_url', 'imdb_code' or simply 'imdb', but suspect it
 160 will be easier to simply place it in the links free text field.</p>
 161
 162 <p>I created
 163 <a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
 164 list of IMDB title IDs for several thousand movies in the Internet
 165 Archive</a>, but I also got a list of several thousand movies without
 166 such IMDB title ID (and quite a few duplicates).  It would be great if
 167 this data set could be integrated into the Internet Archive metadata
 168 to be available for everyone in the future, but with the current
 169 policy of leaving metadata editing to the uploaders, it will take a
 170 while before this happen.  If you have uploaded movies into the
 171 Internet Archive, you can help.  Please consider following my proposal
 172 above for your movies, to ensure that movie is properly
 173 counted. :)</p>
 174
 175 <p>The list is mostly generated using wikidata, which based on
 176 Wikipedia articles make it possible to link between IMDB and movies in
 177 the Internet Archive.  But there are lots of movies without a
 178 Wikipedia article, and some movies where only a collection page exist
 179 (like for <a href="https://en.wikipedia.org/wiki/Caminandes">the
 180 Caminandes example above</a>, where there are three movies but only
 181 one Wikidata entry).</p>
 182
 183 <p>As usual, if you use Bitcoin and want to show your support of my
 184 activities, please send Bitcoin donations to my address
 185 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 186 </div>
 187       <div class="tags">
 188
 189
 190         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 191
 192
 193       </div>
 194     </div>
 195     <div class="padding"></div>
 196
 197     <div class="entry">
 198       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_3000_movies_listed_on_IMDB_.html">Legal to share more than 3000 movies listed on IMDB?</a></div>
 199       <div class="date">18th November 2017</div>
 200       <div class="body"><p>A month ago, I blogged about my work to
 201 <a href="http://people.skolelinux.org/pere/blog/Locating_IMDB_IDs_of_movies_in_the_Internet_Archive_using_Wikidata.html">automatically
 202 check the copyright status of IMDB entries</a>, and try to count the
 203 number of movies listed in IMDB that is legal to distribute on the
 204 Internet.  I have continued to look for good data sources, and
 205 identified a few more.  The code used to extract information from
 206 various data sources is available in
 207 <a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
 208 git repository</a>, currently available from github.</p>
 209
 210 <p>So far I have identified 3186 unique IMDB title IDs.  To gain
 211 better understanding of the structure of the data set, I created a
 212 histogram of the year associated with each movie (typically release
 213 year).  It is interesting to notice where the peaks and dips in the
 214 graph are located.  I wonder why they are placed there.  I suspect
 215 World War II caused the dip around 1940, but what caused the peak
 216 around 2010?</p>
 217
 218 <p align="center"><img src="http://people.skolelinux.org/pere/blog/images/2017-11-18-verk-i-det-fri-filmer.png" /></p>
 219
 220 <p>I've so far identified ten sources for IMDB title IDs for movies in
 221 the public domain or with a free license.  This is the statistics
 222 reported when running 'make stats' in the git repository:</p>
 223
 224 <pre>
 225   249 entries (    6 unique) with and   288 without IMDB title ID in free-movies-archive-org-butter.json
 226  2301 entries (  540 unique) with and     0 without IMDB title ID in free-movies-archive-org-wikidata.json
 227   830 entries (   29 unique) with and     0 without IMDB title ID in free-movies-icheckmovies-archive-mochard.json
 228  2109 entries (  377 unique) with and     0 without IMDB title ID in free-movies-imdb-pd.json
 229   291 entries (  122 unique) with and     0 without IMDB title ID in free-movies-letterboxd-pd.json
 230   144 entries (  135 unique) with and     0 without IMDB title ID in free-movies-manual.json
 231   350 entries (    1 unique) with and   801 without IMDB title ID in free-movies-publicdomainmovies.json
 232     4 entries (    0 unique) with and   124 without IMDB title ID in free-movies-publicdomainreview.json
 233   698 entries (  119 unique) with and   118 without IMDB title ID in free-movies-publicdomaintorrents.json
 234     8 entries (    8 unique) with and   196 without IMDB title ID in free-movies-vodo.json
 235  3186 unique IMDB title IDs in total
 236 </pre>
 237
 238 <p>The entries without IMDB title ID are candidates to increase the
 239 data set, but might equally well be duplicates of entries already
 240 listed with IMDB title ID in one of the other sources, or represent
 241 movies that lack a IMDB title ID.  I've seen examples of all these
 242 situations when peeking at the entries without IMDB title ID.  Based
 243 on these data sources, the lower bound for movies listed in IMDB that
 244 are legal to distribute on the Internet is between 3186 and 4713.
 245
 246 <p>It would be great for improving the accuracy of this measurement,
 247 if the various sources added IMDB title ID to their metadata.  I have
 248 tried to reach the people behind the various sources to ask if they
 249 are interested in doing this, without any replies so far.  Perhaps you
 250 can help me get in touch with the people behind VODO, Public Domain
 251 Torrents, Public Domain Movies and Public Domain Review to try to
 252 convince them to add more metadata to their movie entries?</p>
 253
 254 <p>Another way you could help is by adding pages to Wikipedia about
 255 movies that are legal to distribute on the Internet.  If such page
 256 exist and include a link to both IMDB and The Internet Archive, the
 257 script used to generate free-movies-archive-org-wikidata.json should
 258 pick up the mapping as soon as wikidata is updates.</p>
 259
 260 <p>As usual, if you use Bitcoin and want to show your support of my
 261 activities, please send Bitcoin donations to my address
 262 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 263 </div>
 264       <div class="tags">
 265
 266
 267         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 268
 269
 270       </div>
 271     </div>
 272     <div class="padding"></div>
 273
 274     <div class="entry">
 275       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Some_notes_on_fault_tolerant_storage_systems.html">Some notes on fault tolerant storage systems</a></div>
 276       <div class="date"> 1st November 2017</div>
 277       <div class="body"><p>If you care about how fault tolerant your storage is, you might
 278 find these articles and papers interesting.  They have formed how I
 279 think of when designing a storage system.</p>
 280
 281 <ul>
 282
 283 <li>USENIX :login; <a
 284 href="https://www.usenix.org/publications/login/summer2017/ganesan">Redundancy
 285 Does Not Imply Fault Tolerance.  Analysis of Distributed Storage
 286 Reactions to Single Errors and Corruptions</a> by Aishwarya Ganesan,
 287 Ramnatthan Alagappan, Andrea C. Arpaci-Dusseau, and Remzi
 288 H. Arpaci-Dusseau</li>
 289
 290 <li>ZDNet
 291 <a href="http://www.zdnet.com/article/why-raid-5-stops-working-in-2009/">Why
 292 RAID 5 stops working in 2009</a> by Robin Harris</li>
 293
 294 <li>ZDNet
 295 <a href="http://www.zdnet.com/article/why-raid-6-stops-working-in-2019/">Why
 296 RAID 6 stops working in 2019</a> by Robin Harris</li>
 297
 298 <li>USENIX FAST'07
 299 <a href="http://research.google.com/archive/disk_failures.pdf">Failure
 300 Trends in a Large Disk Drive Population</a> by Eduardo Pinheiro,
 301 Wolf-Dietrich Weber and Luiz André Barroso</li>
 302
 303 <li>USENIX ;login: <a
 304 href="https://www.usenix.org/system/files/login/articles/hughes12-04.pdf">Data
 305 Integrity.  Finding Truth in a World of Guesses and Lies</a> by Doug
 306 Hughes</li>
 307
 308 <li>USENIX FAST'08
 309 <a href="https://www.usenix.org/events/fast08/tech/full_papers/bairavasundaram/bairavasundaram_html/">An
 310 Analysis of Data Corruption in the Storage Stack</a> by
 311 L. N. Bairavasundaram, G. R. Goodson, B. Schroeder, A. C.
 312 Arpaci-Dusseau, and R. H. Arpaci-Dusseau</li>
 313
 314 <li>USENIX FAST'07 <a
 315 href="https://www.usenix.org/legacy/events/fast07/tech/schroeder/schroeder_html/">Disk
 316 failures in the real world: what does an MTTF of 1,000,000 hours mean
 317 to you?</a> by B. Schroeder and G. A. Gibson.</li>
 318
 319 <li>USENIX ;login: <a
 320 href="https://www.usenix.org/events/fast08/tech/full_papers/jiang/jiang_html/">Are
 321 Disks the Dominant Contributor for Storage Failures?  A Comprehensive
 322 Study of Storage Subsystem Failure Characteristics</a> by Weihang
 323 Jiang, Chongfeng Hu, Yuanyuan Zhou, and Arkady Kanevsky</li>
 324
 325 <li>SIGMETRICS 2007
 326 <a href="http://research.cs.wisc.edu/adsl/Publications/latent-sigmetrics07.pdf">An
 327 analysis of latent sector errors in disk drives</a> by
 328 L. N. Bairavasundaram, G. R. Goodson, S. Pasupathy, and J. Schindler</li>
 329
 330 </ul>
 331
 332 <p>Several of these research papers are based on data collected from
 333 hundred thousands or millions of disk, and their findings are eye
 334 opening.  The short story is simply do not implicitly trust RAID or
 335 redundant storage systems.  Details matter.  And unfortunately there
 336 are few options on Linux addressing all the identified issues.  Both
 337 ZFS and Btrfs are doing a fairly good job, but have legal and
 338 practical issues on their own.  I wonder how cluster file systems like
 339 Ceph do in this regard.  After all, there is an old saying, you know
 340 you have a distributed system when the crash of a computer you have
 341 never heard of stops you from getting any work done.  The same holds
 342 true if fault tolerance do not work.</p>
 343
 344 <p>Just remember, in the end, it do not matter how redundant, or how
 345 fault tolerant your storage is, if you do not continuously monitor its
 346 status to detect and replace failed disks.</p>
 347
 348 <p>As usual, if you use Bitcoin and want to show your support of my
 349 activities, please send Bitcoin donations to my address
 350 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 351 </div>
 352       <div class="tags">
 353
 354
 355         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/raid">raid</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin</a>.
 356
 357
 358       </div>
 359     </div>
 360     <div class="padding"></div>
 361
 362     <div class="entry">
 363       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Web_services_for_writing_academic_LaTeX_papers_as_a_team.html">Web services for writing academic LaTeX papers as a team</a></div>
 364       <div class="date">31st October 2017</div>
 365       <div class="body"><p>I was surprised today to learn that a friend in academia did not
 366 know there are easily available web services available for writing
 367 LaTeX documents as a team.  I thought it was common knowledge, but to
 368 make sure at least my readers are aware of it, I would like to mention
 369 these useful services for writing LaTeX documents.  Some of them even
 370 provide a WYSIWYG editor to ease writing even further.</p>
 371
 372 <p>There are two commercial services available,
 373 <a href="https://sharelatex.com">ShareLaTeX</a> and
 374 <a href="https://overleaf.com">Overleaf</a>.  They are very easy to
 375 use.  Just start a new document, select which publisher to write for
 376 (ie which LaTeX style to use), and start writing.  Note, these two
 377 have announced their intention to join forces, so soon it will only be
 378 one joint service.  I've used both for different documents, and they
 379 work just fine.  While
 380 <a href="https://github.com/sharelatex/sharelatex">ShareLaTeX is free
 381 software</a>, while the latter is not.  According to <a
 382 href="https://www.overleaf.com/help/17-is-overleaf-open-source">a
 383 announcement from Overleaf</a>, they plan to keep the ShareLaTeX code
 384 base maintained as free software.</p>
 385
 386 But these two are not the only alternatives.
 387 <a href="https://app.fiduswriter.org/">Fidus Writer</a> is another free
 388 software solution with <a href="https://github.com/fiduswriter">the
 389 source available on github</a>.  I have not used it myself.  Several
 390 others can be found on the nice
 391 <a href="https://alternativeto.net/software/sharelatex/">alterntiveTo
 392 web service</a>.
 393
 394 <p>If you like Google Docs or Etherpad, but would like to write
 395 documents in LaTeX, you should check out these services.  You can even
 396 host your own, if you want to. :)</p>
 397
 398 <p>As usual, if you use Bitcoin and want to show your support of my
 399 activities, please send Bitcoin donations to my address
 400 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 401 </div>
 402       <div class="tags">
 403
 404
 405         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 406
 407
 408       </div>
 409     </div>
 410     <div class="padding"></div>
 411
 412     <div class="entry">
 413       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Locating_IMDB_IDs_of_movies_in_the_Internet_Archive_using_Wikidata.html">Locating IMDB IDs of movies in the Internet Archive using Wikidata</a></div>
 414       <div class="date">25th October 2017</div>
 415       <div class="body"><p>Recently, I needed to automatically check the copyright status of a
 416 set of <a href="http://www.imdb.com/">The Internet Movie database
 417 (IMDB)</a> entries, to figure out which one of the movies they refer
 418 to can be freely distributed on the Internet.  This proved to be
 419 harder than it sounds.  IMDB for sure list movies without any
 420 copyright protection, where the copyright protection has expired or
 421 where the movie is lisenced using a permissive license like one from
 422 Creative Commons.  These are mixed with copyright protected movies,
 423 and there seem to be no way to separate these classes of movies using
 424 the information in IMDB.</p>
 425
 426 <p>First I tried to look up entries manually in IMDB,
 427 <a href="https://www.wikipedia.org/">Wikipedia</a> and
 428 <a href="https://www.archive.org/">The Internet Archive</a>, to get a
 429 feel how to do this.  It is hard to know for sure using these sources,
 430 but it should be possible to be reasonable confident a movie is "out
 431 of copyright" with a few hours work per movie.  As I needed to check
 432 almost 20,000 entries, this approach was not sustainable.  I simply
 433 can not work around the clock for about 6 years to check this data
 434 set.</p>
 435
 436 <p>I asked the people behind The Internet Archive if they could
 437 introduce a new metadata field in their metadata XML for IMDB ID, but
 438 was told that they leave it completely to the uploaders to update the
 439 metadata.  Some of the metadata entries had IMDB links in the
 440 description, but I found no way to download all metadata files in bulk
 441 to locate those ones and put that approach aside.</p>
 442
 443 <p>In the process I noticed several Wikipedia articles about movies
 444 had links to both IMDB and The Internet Archive, and it occured to me
 445 that I could use the Wikipedia RDF data set to locate entries with
 446 both, to at least get a lower bound on the number of movies on The
 447 Internet Archive with a IMDB ID.  This is useful based on the
 448 assumption that movies distributed by The Internet Archive can be
 449 legally distributed on the Internet.  With some help from the RDF
 450 community (thank you DanC), I was able to come up with this query to
 451 pass to <a href="https://query.wikidata.org/">the SPARQL interface on
 452 Wikidata</a>:
 453
 454 <p><pre>
 455 SELECT ?work ?imdb ?ia ?when ?label
 456 WHERE
 457 {
 458   ?work wdt:P31/wdt:P279* wd:Q11424.
 459   ?work wdt:P345 ?imdb.
 460   ?work wdt:P724 ?ia.
 461   OPTIONAL {
 462         ?work wdt:P577 ?when.
 463         ?work rdfs:label ?label.
 464         FILTER(LANG(?label) = "en").
 465   }
 466 }
 467 </pre></p>
 468
 469 <p>If I understand the query right, for every film entry anywhere in
 470 Wikpedia, it will return the IMDB ID and The Internet Archive ID, and
 471 when the movie was released and its English title, if either or both
 472 of the latter two are available.  At the moment the result set contain
 473 2338 entries.  Of course, it depend on volunteers including both
 474 correct IMDB and The Internet Archive IDs in the wikipedia articles
 475 for the movie.  It should be noted that the result will include
 476 duplicates if the movie have entries in several languages.  There are
 477 some bogus entries, either because The Internet Archive ID contain a
 478 typo or because the movie is not available from The Internet Archive.
 479 I did not verify the IMDB IDs, as I am unsure how to do that
 480 automatically.</p>
 481
 482 <p>I wrote a small python script to extract the data set from Wikidata
 483 and check if the XML metadata for the movie is available from The
 484 Internet Archive, and after around 1.5 hour it produced a list of 2097
 485 free movies and their IMDB ID.  In total, 171 entries in Wikidata lack
 486 the refered Internet Archive entry.  I assume the 70 "disappearing"
 487 entries (ie 2338-2097-171) are duplicate entries.</p>
 488
 489 <p>This is not too bad, given that The Internet Archive report to
 490 contain <a href="https://archive.org/details/feature_films">5331
 491 feature films</a> at the moment, but it also mean more than 3000
 492 movies are missing on Wikipedia or are missing the pair of references
 493 on Wikipedia.</p>
 494
 495 <p>I was curious about the distribution by release year, and made a
 496 little graph to show how the amount of free movies is spread over the
 497 years:<p>
 498
 499 <p><img src="http://people.skolelinux.org/pere/blog/images/2017-10-25-verk-i-det-fri-filmer.png"></p>
 500
 501 <p>I expect the relative distribution of the remaining 3000 movies to
 502 be similar.</p>
 503
 504 <p>If you want to help, and want to ensure Wikipedia can be used to
 505 cross reference The Internet Archive and The Internet Movie Database,
 506 please make sure entries like this are listed under the "External
 507 links" heading on the Wikipedia article for the movie:</p>
 508
 509 <p><pre>
 510 * {{Internet Archive film|id=FightingLady}}
 511 * {{IMDb title|id=0036823|title=The Fighting Lady}}
 512 </pre></p>
 513
 514 <p>Please verify the links on the final page, to make sure you did not
 515 introduce a typo.</p>
 516
 517 <p>Here is the complete list, if you want to correct the 171
 518 identified Wikipedia entries with broken links to The Internet
 519 Archive: <a href="http://www.wikidata.org/entity/Q1140317">Q1140317</a>,
 520 <a href="http://www.wikidata.org/entity/Q458656">Q458656</a>,
 521 <a href="http://www.wikidata.org/entity/Q458656">Q458656</a>,
 522 <a href="http://www.wikidata.org/entity/Q470560">Q470560</a>,
 523 <a href="http://www.wikidata.org/entity/Q743340">Q743340</a>,
 524 <a href="http://www.wikidata.org/entity/Q822580">Q822580</a>,
 525 <a href="http://www.wikidata.org/entity/Q480696">Q480696</a>,
 526 <a href="http://www.wikidata.org/entity/Q128761">Q128761</a>,
 527 <a href="http://www.wikidata.org/entity/Q1307059">Q1307059</a>,
 528 <a href="http://www.wikidata.org/entity/Q1335091">Q1335091</a>,
 529 <a href="http://www.wikidata.org/entity/Q1537166">Q1537166</a>,
 530 <a href="http://www.wikidata.org/entity/Q1438334">Q1438334</a>,
 531 <a href="http://www.wikidata.org/entity/Q1479751">Q1479751</a>,
 532 <a href="http://www.wikidata.org/entity/Q1497200">Q1497200</a>,
 533 <a href="http://www.wikidata.org/entity/Q1498122">Q1498122</a>,
 534 <a href="http://www.wikidata.org/entity/Q865973">Q865973</a>,
 535 <a href="http://www.wikidata.org/entity/Q834269">Q834269</a>,
 536 <a href="http://www.wikidata.org/entity/Q841781">Q841781</a>,
 537 <a href="http://www.wikidata.org/entity/Q841781">Q841781</a>,
 538 <a href="http://www.wikidata.org/entity/Q1548193">Q1548193</a>,
 539 <a href="http://www.wikidata.org/entity/Q499031">Q499031</a>,
 540 <a href="http://www.wikidata.org/entity/Q1564769">Q1564769</a>,
 541 <a href="http://www.wikidata.org/entity/Q1585239">Q1585239</a>,
 542 <a href="http://www.wikidata.org/entity/Q1585569">Q1585569</a>,
 543 <a href="http://www.wikidata.org/entity/Q1624236">Q1624236</a>,
 544 <a href="http://www.wikidata.org/entity/Q4796595">Q4796595</a>,
 545 <a href="http://www.wikidata.org/entity/Q4853469">Q4853469</a>,
 546 <a href="http://www.wikidata.org/entity/Q4873046">Q4873046</a>,
 547 <a href="http://www.wikidata.org/entity/Q915016">Q915016</a>,
 548 <a href="http://www.wikidata.org/entity/Q4660396">Q4660396</a>,
 549 <a href="http://www.wikidata.org/entity/Q4677708">Q4677708</a>,
 550 <a href="http://www.wikidata.org/entity/Q4738449">Q4738449</a>,
 551 <a href="http://www.wikidata.org/entity/Q4756096">Q4756096</a>,
 552 <a href="http://www.wikidata.org/entity/Q4766785">Q4766785</a>,
 553 <a href="http://www.wikidata.org/entity/Q880357">Q880357</a>,
 554 <a href="http://www.wikidata.org/entity/Q882066">Q882066</a>,
 555 <a href="http://www.wikidata.org/entity/Q882066">Q882066</a>,
 556 <a href="http://www.wikidata.org/entity/Q204191">Q204191</a>,
 557 <a href="http://www.wikidata.org/entity/Q204191">Q204191</a>,
 558 <a href="http://www.wikidata.org/entity/Q1194170">Q1194170</a>,
 559 <a href="http://www.wikidata.org/entity/Q940014">Q940014</a>,
 560 <a href="http://www.wikidata.org/entity/Q946863">Q946863</a>,
 561 <a href="http://www.wikidata.org/entity/Q172837">Q172837</a>,
 562 <a href="http://www.wikidata.org/entity/Q573077">Q573077</a>,
 563 <a href="http://www.wikidata.org/entity/Q1219005">Q1219005</a>,
 564 <a href="http://www.wikidata.org/entity/Q1219599">Q1219599</a>,
 565 <a href="http://www.wikidata.org/entity/Q1643798">Q1643798</a>,
 566 <a href="http://www.wikidata.org/entity/Q1656352">Q1656352</a>,
 567 <a href="http://www.wikidata.org/entity/Q1659549">Q1659549</a>,
 568 <a href="http://www.wikidata.org/entity/Q1660007">Q1660007</a>,
 569 <a href="http://www.wikidata.org/entity/Q1698154">Q1698154</a>,
 570 <a href="http://www.wikidata.org/entity/Q1737980">Q1737980</a>,
 571 <a href="http://www.wikidata.org/entity/Q1877284">Q1877284</a>,
 572 <a href="http://www.wikidata.org/entity/Q1199354">Q1199354</a>,
 573 <a href="http://www.wikidata.org/entity/Q1199354">Q1199354</a>,
 574 <a href="http://www.wikidata.org/entity/Q1199451">Q1199451</a>,
 575 <a href="http://www.wikidata.org/entity/Q1211871">Q1211871</a>,
 576 <a href="http://www.wikidata.org/entity/Q1212179">Q1212179</a>,
 577 <a href="http://www.wikidata.org/entity/Q1238382">Q1238382</a>,
 578 <a href="http://www.wikidata.org/entity/Q4906454">Q4906454</a>,
 579 <a href="http://www.wikidata.org/entity/Q320219">Q320219</a>,
 580 <a href="http://www.wikidata.org/entity/Q1148649">Q1148649</a>,
 581 <a href="http://www.wikidata.org/entity/Q645094">Q645094</a>,
 582 <a href="http://www.wikidata.org/entity/Q5050350">Q5050350</a>,
 583 <a href="http://www.wikidata.org/entity/Q5166548">Q5166548</a>,
 584 <a href="http://www.wikidata.org/entity/Q2677926">Q2677926</a>,
 585 <a href="http://www.wikidata.org/entity/Q2698139">Q2698139</a>,
 586 <a href="http://www.wikidata.org/entity/Q2707305">Q2707305</a>,
 587 <a href="http://www.wikidata.org/entity/Q2740725">Q2740725</a>,
 588 <a href="http://www.wikidata.org/entity/Q2024780">Q2024780</a>,
 589 <a href="http://www.wikidata.org/entity/Q2117418">Q2117418</a>,
 590 <a href="http://www.wikidata.org/entity/Q2138984">Q2138984</a>,
 591 <a href="http://www.wikidata.org/entity/Q1127992">Q1127992</a>,
 592 <a href="http://www.wikidata.org/entity/Q1058087">Q1058087</a>,
 593 <a href="http://www.wikidata.org/entity/Q1070484">Q1070484</a>,
 594 <a href="http://www.wikidata.org/entity/Q1080080">Q1080080</a>,
 595 <a href="http://www.wikidata.org/entity/Q1090813">Q1090813</a>,
 596 <a href="http://www.wikidata.org/entity/Q1251918">Q1251918</a>,
 597 <a href="http://www.wikidata.org/entity/Q1254110">Q1254110</a>,
 598 <a href="http://www.wikidata.org/entity/Q1257070">Q1257070</a>,
 599 <a href="http://www.wikidata.org/entity/Q1257079">Q1257079</a>,
 600 <a href="http://www.wikidata.org/entity/Q1197410">Q1197410</a>,
 601 <a href="http://www.wikidata.org/entity/Q1198423">Q1198423</a>,
 602 <a href="http://www.wikidata.org/entity/Q706951">Q706951</a>,
 603 <a href="http://www.wikidata.org/entity/Q723239">Q723239</a>,
 604 <a href="http://www.wikidata.org/entity/Q2079261">Q2079261</a>,
 605 <a href="http://www.wikidata.org/entity/Q1171364">Q1171364</a>,
 606 <a href="http://www.wikidata.org/entity/Q617858">Q617858</a>,
 607 <a href="http://www.wikidata.org/entity/Q5166611">Q5166611</a>,
 608 <a href="http://www.wikidata.org/entity/Q5166611">Q5166611</a>,
 609 <a href="http://www.wikidata.org/entity/Q324513">Q324513</a>,
 610 <a href="http://www.wikidata.org/entity/Q374172">Q374172</a>,
 611 <a href="http://www.wikidata.org/entity/Q7533269">Q7533269</a>,
 612 <a href="http://www.wikidata.org/entity/Q970386">Q970386</a>,
 613 <a href="http://www.wikidata.org/entity/Q976849">Q976849</a>,
 614 <a href="http://www.wikidata.org/entity/Q7458614">Q7458614</a>,
 615 <a href="http://www.wikidata.org/entity/Q5347416">Q5347416</a>,
 616 <a href="http://www.wikidata.org/entity/Q5460005">Q5460005</a>,
 617 <a href="http://www.wikidata.org/entity/Q5463392">Q5463392</a>,
 618 <a href="http://www.wikidata.org/entity/Q3038555">Q3038555</a>,
 619 <a href="http://www.wikidata.org/entity/Q5288458">Q5288458</a>,
 620 <a href="http://www.wikidata.org/entity/Q2346516">Q2346516</a>,
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 622 <a href="http://www.wikidata.org/entity/Q5185497">Q5185497</a>,
 623 <a href="http://www.wikidata.org/entity/Q5216127">Q5216127</a>,
 624 <a href="http://www.wikidata.org/entity/Q5223127">Q5223127</a>,
 625 <a href="http://www.wikidata.org/entity/Q5261159">Q5261159</a>,
 626 <a href="http://www.wikidata.org/entity/Q1300759">Q1300759</a>,
 627 <a href="http://www.wikidata.org/entity/Q5521241">Q5521241</a>,
 628 <a href="http://www.wikidata.org/entity/Q7733434">Q7733434</a>,
 629 <a href="http://www.wikidata.org/entity/Q7736264">Q7736264</a>,
 630 <a href="http://www.wikidata.org/entity/Q7737032">Q7737032</a>,
 631 <a href="http://www.wikidata.org/entity/Q7882671">Q7882671</a>,
 632 <a href="http://www.wikidata.org/entity/Q7719427">Q7719427</a>,
 633 <a href="http://www.wikidata.org/entity/Q7719444">Q7719444</a>,
 634 <a href="http://www.wikidata.org/entity/Q7722575">Q7722575</a>,
 635 <a href="http://www.wikidata.org/entity/Q2629763">Q2629763</a>,
 636 <a href="http://www.wikidata.org/entity/Q2640346">Q2640346</a>,
 637 <a href="http://www.wikidata.org/entity/Q2649671">Q2649671</a>,
 638 <a href="http://www.wikidata.org/entity/Q7703851">Q7703851</a>,
 639 <a href="http://www.wikidata.org/entity/Q7747041">Q7747041</a>,
 640 <a href="http://www.wikidata.org/entity/Q6544949">Q6544949</a>,
 641 <a href="http://www.wikidata.org/entity/Q6672759">Q6672759</a>,
 642 <a href="http://www.wikidata.org/entity/Q2445896">Q2445896</a>,
 643 <a href="http://www.wikidata.org/entity/Q12124891">Q12124891</a>,
 644 <a href="http://www.wikidata.org/entity/Q3127044">Q3127044</a>,
 645 <a href="http://www.wikidata.org/entity/Q2511262">Q2511262</a>,
 646 <a href="http://www.wikidata.org/entity/Q2517672">Q2517672</a>,
 647 <a href="http://www.wikidata.org/entity/Q2543165">Q2543165</a>,
 648 <a href="http://www.wikidata.org/entity/Q426628">Q426628</a>,
 649 <a href="http://www.wikidata.org/entity/Q426628">Q426628</a>,
 650 <a href="http://www.wikidata.org/entity/Q12126890">Q12126890</a>,
 651 <a href="http://www.wikidata.org/entity/Q13359969">Q13359969</a>,
 652 <a href="http://www.wikidata.org/entity/Q13359969">Q13359969</a>,
 653 <a href="http://www.wikidata.org/entity/Q2294295">Q2294295</a>,
 654 <a href="http://www.wikidata.org/entity/Q2294295">Q2294295</a>,
 655 <a href="http://www.wikidata.org/entity/Q2559509">Q2559509</a>,
 656 <a href="http://www.wikidata.org/entity/Q2559912">Q2559912</a>,
 657 <a href="http://www.wikidata.org/entity/Q7760469">Q7760469</a>,
 658 <a href="http://www.wikidata.org/entity/Q6703974">Q6703974</a>,
 659 <a href="http://www.wikidata.org/entity/Q4744">Q4744</a>,
 660 <a href="http://www.wikidata.org/entity/Q7766962">Q7766962</a>,
 661 <a href="http://www.wikidata.org/entity/Q7768516">Q7768516</a>,
 662 <a href="http://www.wikidata.org/entity/Q7769205">Q7769205</a>,
 663 <a href="http://www.wikidata.org/entity/Q7769988">Q7769988</a>,
 664 <a href="http://www.wikidata.org/entity/Q2946945">Q2946945</a>,
 665 <a href="http://www.wikidata.org/entity/Q3212086">Q3212086</a>,
 666 <a href="http://www.wikidata.org/entity/Q3212086">Q3212086</a>,
 667 <a href="http://www.wikidata.org/entity/Q18218448">Q18218448</a>,
 668 <a href="http://www.wikidata.org/entity/Q18218448">Q18218448</a>,
 669 <a href="http://www.wikidata.org/entity/Q18218448">Q18218448</a>,
 670 <a href="http://www.wikidata.org/entity/Q6909175">Q6909175</a>,
 671 <a href="http://www.wikidata.org/entity/Q7405709">Q7405709</a>,
 672 <a href="http://www.wikidata.org/entity/Q7416149">Q7416149</a>,
 673 <a href="http://www.wikidata.org/entity/Q7239952">Q7239952</a>,
 674 <a href="http://www.wikidata.org/entity/Q7317332">Q7317332</a>,
 675 <a href="http://www.wikidata.org/entity/Q7783674">Q7783674</a>,
 676 <a href="http://www.wikidata.org/entity/Q7783704">Q7783704</a>,
 677 <a href="http://www.wikidata.org/entity/Q7857590">Q7857590</a>,
 678 <a href="http://www.wikidata.org/entity/Q3372526">Q3372526</a>,
 679 <a href="http://www.wikidata.org/entity/Q3372642">Q3372642</a>,
 680 <a href="http://www.wikidata.org/entity/Q3372816">Q3372816</a>,
 681 <a href="http://www.wikidata.org/entity/Q3372909">Q3372909</a>,
 682 <a href="http://www.wikidata.org/entity/Q7959649">Q7959649</a>,
 683 <a href="http://www.wikidata.org/entity/Q7977485">Q7977485</a>,
 684 <a href="http://www.wikidata.org/entity/Q7992684">Q7992684</a>,
 685 <a href="http://www.wikidata.org/entity/Q3817966">Q3817966</a>,
 686 <a href="http://www.wikidata.org/entity/Q3821852">Q3821852</a>,
 687 <a href="http://www.wikidata.org/entity/Q3420907">Q3420907</a>,
 688 <a href="http://www.wikidata.org/entity/Q3429733">Q3429733</a>,
 689 <a href="http://www.wikidata.org/entity/Q774474">Q774474</a></p>
 690
 691 <p>As usual, if you use Bitcoin and want to show your support of my
 692 activities, please send Bitcoin donations to my address
 693 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 694 </div>
 695       <div class="tags">
 696
 697
 698         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 699
 700
 701       </div>
 702     </div>
 703     <div class="padding"></div>
 704
 705     <div class="entry">
 706       <div class="title"><a href="http://people.skolelinux.org/pere/blog/A_one_way_wall_on_the_border_.html">A one-way wall on the border?</a></div>
 707       <div class="date">14th October 2017</div>
 708       <div class="body"><p>I find it fascinating how many of the people being locked inside
 709 the proposed border wall between USA and Mexico support the idea.  The
 710 proposal to keep Mexicans out reminds me of
 711 <a href="http://www.history.com/news/10-things-you-may-not-know-about-the-berlin-wall">the
 712 propaganda twist from the East Germany government</a> calling the wall
 713 the “Antifascist Bulwark” after erecting the Berlin Wall, claiming
 714 that the wall was erected to keep enemies from creeping into East
 715 Germany, while it was obvious to the people locked inside it that it
 716 was erected to keep the people from escaping.</p>
 717
 718 <p>Do the people in USA supporting this wall really believe it is a
 719 one way wall, only keeping people on the outside from getting in,
 720 while not keeping people in the inside from getting out?</p>
 721
 722 <p>As usual, if you use Bitcoin and want to show your support of my
 723 activities, please send Bitcoin donations to my address
 724 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 725 </div>
 726       <div class="tags">
 727
 728
 729         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 730
 731
 732       </div>
 733     </div>
 734     <div class="padding"></div>
 735
 736     <div class="entry">
 737       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Generating_3D_prints_in_Debian_using_Cura_and_Slic3r__prusa_.html">Generating 3D prints in Debian using Cura and Slic3r(-prusa)</a></div>
 738       <div class="date"> 9th October 2017</div>
 739       <div class="body"><p>At my nearby maker space,
 740 <a href="http://sonen.ifi.uio.no/">Sonen</a>, I heard the story that it
 741 was easier to generate gcode files for theyr 3D printers (Ultimake 2+)
 742 on Windows and MacOS X than Linux, because the software involved had
 743 to be manually compiled and set up on Linux while premade packages
 744 worked out of the box on Windows and MacOS X.  I found this annoying,
 745 as the software involved,
 746 <a href="https://github.com/Ultimaker/Cura">Cura</a>, is free software
 747 and should be trivial to get up and running on Linux if someone took
 748 the time to package it for the relevant distributions.  I even found
 749 <a href="https://bugs.debian.org/706656">a request for adding into
 750 Debian</a> from 2013, which had seem some activity over the years but
 751 never resulted in the software showing up in Debian.  So a few days
 752 ago I offered my help to try to improve the situation.</p>
 753
 754 <p>Now I am very happy to see that all the packages required by a
 755 working Cura in Debian are uploaded into Debian and waiting in the NEW
 756 queue for the ftpmasters to have a look.  You can track the progress
 757 on
 758 <a href="https://qa.debian.org/developer.php?email=3dprinter-general%40lists.alioth.debian.org">the
 759 status page for the 3D printer team</a>.</p>
 760
 761 <p>The uploaded packages are a bit behind upstream, and was uploaded
 762 now to get slots in <a href="https://ftp-master.debian.org/new.html">the NEW
 763 queue</a> while we work up updating the packages to the latest
 764 upstream version.</p>
 765
 766 <p>On a related note, two competitors for Cura, which I found harder
 767 to use and was unable to configure correctly for Ultimaker 2+ in the
 768 short time I spent on it, are already in Debian.  If you are looking
 769 for 3D printer "slicers" and want something already available in
 770 Debian, check out
 771 <a href="https://tracker.debian.org/pkg/slic3r">slic3r</a> and
 772 <a href="https://tracker.debian.org/pkg/slic3r-prusa">slic3r-prusa</a>.
 773 The latter is a fork of the former.</p>
 774
 775 <p>As usual, if you use Bitcoin and want to show your support of my
 776 activities, please send Bitcoin donations to my address
 777 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 778 </div>
 779       <div class="tags">
 780
 781
 782         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 783
 784
 785       </div>
 786     </div>
 787     <div class="padding"></div>
 788
 789     <div class="entry">
 790       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Mangler_du_en_skrue__eller_har_du_en_skrue_l_s_.html">Mangler du en skrue, eller har du en skrue løs?</a></div>
 791       <div class="date"> 4th October 2017</div>
 792       <div class="body">Når jeg holder på med ulike prosjekter, så trenger jeg stadig ulike
 793 skruer.  Det siste prosjektet jeg holder på med er å lage
 794 <a href="https://www.thingiverse.com/thing:676916">en boks til en
 795 HDMI-touch-skjerm</a> som skal brukes med Raspberry Pi.  Boksen settes
 796 sammen med skruer og bolter, og jeg har vært i tvil om hvor jeg kan
 797 få tak i de riktige skruene.  Clas Ohlson og Jernia i nærheten har
 798 sjelden hatt det jeg trenger.  Men her om dagen fikk jeg et fantastisk
 799 tips for oss som bor i Oslo.
 800 <a href="http://www.zachskruer.no/">Zachariassen Jernvare AS</a> i
 801 <a href="http://www.openstreetmap.org/?mlat=59.93421&mlon=10.76795#map=19/59.93421/10.76795">Hegermannsgate
 802 23A på Torshov</a> har et fantastisk utvalg, og åpent mellom 09:00 og
 803 17:00.  De selger skruer, muttere, bolter, skiver etc i løs vekt, og
 804 så langt har jeg fått alt jeg har lett etter.  De har i tillegg det
 805 meste av annen jernvare, som verktøy, lamper, ledninger, etc.  Jeg
 806 håper de har nok kunder til å holde det gående lenge, da dette er en
 807 butikk jeg kommer til å besøke ofte.  Butikken er et funn å ha i
 808 nabolaget for oss som liker å bygge litt selv. :)</p>
 809
 810 <p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
 811 det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
 812 til min adresse
 813 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 814 </div>
 815       <div class="tags">
 816
 817
 818         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>.
 819
 820
 821       </div>
 822     </div>
 823     <div class="padding"></div>
 824
 825     <div class="entry">
 826       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Visualizing_GSM_radio_chatter_using_gr_gsm_and_Hopglass.html">Visualizing GSM radio chatter using gr-gsm and Hopglass</a></div>
 827       <div class="date">29th September 2017</div>
 828       <div class="body"><p>Every mobile phone announce its existence over radio to the nearby
 829 mobile cell towers.  And this radio chatter is available for anyone
 830 with a radio receiver capable of receiving them.  Details about the
 831 mobile phones with very good accuracy is of course collected by the
 832 phone companies, but this is not the topic of this blog post.  The
 833 mobile phone radio chatter make it possible to figure out when a cell
 834 phone is nearby, as it include the SIM card ID (IMSI).  By paying
 835 attention over time, one can see when a phone arrive and when it leave
 836 an area.  I believe it would be nice to make this information more
 837 available to the general public, to make more people aware of how
 838 their phones are announcing their whereabouts to anyone that care to
 839 listen.</p>
 840
 841 <p>I am very happy to report that we managed to get something
 842 visualizing this information up and running for
 843 <a href="http://norwaymakers.org/osf17">Oslo Skaperfestival 2017</a>
 844 (Oslo Makers Festival) taking place today and tomorrow at Deichmanske
 845 library.  The solution is based on the
 846 <a href="http://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html">simple
 847 recipe for listening to GSM chatter</a> I posted a few days ago, and
 848 will show up at the stand of <a href="http://sonen.ifi.uio.no/">Åpen
 849 Sone from the Computer Science department of the University of
 850 Oslo</a>.  The presentation will show the nearby mobile phones (aka
 851 IMSIs) as dots in a web browser graph, with lines to the dot
 852 representing mobile base station it is talking to. It was working in
 853 the lab yesterday, and was moved into place this morning.</p>
 854
 855 <p>We set up a fairly powerful desktop machine using Debian
 856 Buster/Testing with several (five, I believe) RTL2838 DVB-T receivers
 857 connected and visualize the visible cell phone towers using an
 858 <a href="https://github.com/marlow925/hopglass">English version of
 859 Hopglass</a>.  A fairly powerfull machine is needed as the
 860 grgsm_livemon_headless processes from
 861 <a href="https://tracker.debian.org/pkg/gr-gsm">gr-gsm</a> converting
 862 the radio signal to data packages is quite CPU intensive.</p>
 863
 864 <p>The frequencies to listen to, are identified using a slightly
 865 patched scan-and-livemon (to set the --args values for each receiver),
 866 and the Hopglass data is generated using the
 867 <a href="https://github.com/petterreinholdtsen/IMSI-catcher/tree/meshviewer-output">patches
 868 in my meshviewer-output branch</a>.  For some reason we could not get
 869 more than four SDRs working.  There is also a geographical map trying
 870 to show the location of the base stations, but I believe their
 871 coordinates are hardcoded to some random location in Germany, I
 872 believe.  The code should be replaced with code to look up location in
 873 a text file, a sqlite database or one of the online databases
 874 mentioned in
 875 <a href="https://github.com/Oros42/IMSI-catcher/issues/14">the github
 876 issue for the topic</a>.
 877
 878 <p>If this sound interesting, visit the stand at the festival!</p>
 879 </div>
 880       <div class="tags">
 881
 882
 883         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/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 884
 885
 886       </div>
 887     </div>
 888     <div class="padding"></div>
 889
 890     <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>
 891     <div id="sidebar">
 892
 893
 894
 895 <h2>Archive</h2>
 896 <ul>
 897
 898 <li>2017
 899 <ul>
 900
 901 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 902
 903 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 904
 905 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 906
 907 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 908
 909 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 910
 911 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 912
 913 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 914
 915 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 916
 917 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 918
 919 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 920
 921 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (1)</a></li>
 922
 923 </ul></li>
 924
 925 <li>2016
 926 <ul>
 927
 928 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 929
 930 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 931
 932 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 933
 934 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 935
 936 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 937
 938 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 939
 940 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 941
 942 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 943
 944 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 945
 946 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 947
 948 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 949
 950 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 951
 952 </ul></li>
 953
 954 <li>2015
 955 <ul>
 956
 957 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 958
 959 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 960
 961 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 962
 963 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 964
 965 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 966
 967 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 968
 969 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 970
 971 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 972
 973 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 974
 975 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 976
 977 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 978
 979 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 980
 981 </ul></li>
 982
 983 <li>2014
 984 <ul>
 985
 986 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 987
 988 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 989
 990 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 991
 992 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 993
 994 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 995
 996 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 997
 998 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 999
1000 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
1001
1002 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
1003
1004 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
1005
1006 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
1007
1008 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
1009
1010 </ul></li>
1011
1012 <li>2013
1013 <ul>
1014
1015 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
1016
1017 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
1018
1019 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
1020
1021 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
1022
1023 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
1024
1025 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
1026
1027 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
1028
1029 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
1030
1031 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
1032
1033 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
1034
1035 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
1036
1037 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
1038
1039 </ul></li>
1040
1041 <li>2012
1042 <ul>
1043
1044 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
1045
1046 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
1047
1048 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
1049
1050 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
1051
1052 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
1053
1054 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
1055
1056 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
1057
1058 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
1059
1060 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
1061
1062 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
1063
1064 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
1065
1066 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
1067
1068 </ul></li>
1069
1070 <li>2011
1071 <ul>
1072
1073 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
1074
1075 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
1076
1077 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
1078
1079 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
1080
1081 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
1082
1083 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
1084
1085 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
1086
1087 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
1088
1089 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
1090
1091 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
1092
1093 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
1094
1095 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
1096
1097 </ul></li>
1098
1099 <li>2010
1100 <ul>
1101
1102 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
1103
1104 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
1105
1106 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
1107
1108 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
1109
1110 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
1111
1112 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
1113
1114 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
1115
1116 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
1117
1118 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
1119
1120 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
1121
1122 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
1123
1124 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
1125
1126 </ul></li>
1127
1128 <li>2009
1129 <ul>
1130
1131 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
1132
1133 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
1134
1135 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
1136
1137 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
1138
1139 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
1140
1141 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
1142
1143 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
1144
1145 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
1146
1147 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
1148
1149 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
1150
1151 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
1152
1153 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
1154
1155 </ul></li>
1156
1157 <li>2008
1158 <ul>
1159
1160 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
1161
1162 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
1163
1164 </ul></li>
1165
1166 </ul>
1167
1168
1169
1170 <h2>Tags</h2>
1171 <ul>
1172
1173  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (14)</a></li>
1174
1175  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
1176
1177  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
1178
1179  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
1180
1181  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
1182
1183  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (16)</a></li>
1184
1185  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
1186
1187  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
1188
1189  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (154)</a></li>
1190
1191  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
1192
1193  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
1194
1195  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
1196
1197  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
1198
1199  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (24)</a></li>
1200
1201  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1202
1203  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (361)</a></li>
1204
1205  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1206
1207  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
1208
1209  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (31)</a></li>
1210
1211  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
1212
1213  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
1214
1215  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
1216
1217  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
1218
1219  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (15)</a></li>
1220
1221  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
1222
1223  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1224
1225  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
1226
1227  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1228
1229  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1230
1231  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1232
1233  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1234
1235  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
1236
1237  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (9)</a></li>
1238
1239  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (293)</a></li>
1240
1241  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (189)</a></li>
1242
1243  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
1244
1245  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1246
1247  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (68)</a></li>
1248
1249  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (104)</a></li>
1250
1251  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
1252
1253  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1254
1255  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1256
1257  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1258
1259  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
1260
1261  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1262
1263  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (5)</a></li>
1264
1265  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1266
1267  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (53)</a></li>
1268
1269  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1270
1271  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1272
1273  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
1274
1275  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
1276
1277  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
1278
1279  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (52)</a></li>
1280
1281  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
1282
1283  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1284
1285  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1286
1287  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (7)</a></li>
1288
1289  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (60)</a></li>
1290
1291  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1292
1293  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (40)</a></li>
1294
1295 </ul>
1296
1297
1298     </div>
1299     <p style="text-align: right">
1300  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1301 </p>
1302
1303   </body>
1304 </html>