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   6     <title>Petter Reinholdtsen</title>
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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/Web_services_for_writing_academic_LaTeX_papers_as_a_team.html">Web services for writing academic LaTeX papers as a team</a></div>
  24       <div class="date">31st October 2017</div>
  25       <div class="body"><p>I was surprised today to learn that a friend in academia did not
  26 know there are easily available web services available for writing
  27 LaTeX documents as a team.  I thought it was common knowledge, but to
  28 make sure at least my readers are aware of it, I would like to mention
  29 these useful services for writing LaTeX documents.  Some of them even
  30 provide a WYSIWYG editor to ease writing even further.</p>
  31
  32 <p>There are two commercial services available,
  33 <a href="https://sharelatex.com">ShareLaTeX</a> and
  34 <a href="https://overleaf.com">Overleaf</a>.  They are very easy to
  35 use.  Just start a new document, select which publisher to write for
  36 (ie which LaTeX style to use), and start writing.  Note, these two
  37 have announced their intention to join forces, so soon it will only be
  38 one joint service.  I've used both for different documents, and they
  39 work just fine.  While
  40 <a href="https://github.com/sharelatex/sharelatex">ShareLaTeX is free
  41 software</a>, while the latter is not.  According to <a
  42 href="https://www.overleaf.com/help/17-is-overleaf-open-source">a
  43 announcement from Overleaf</a>, they plan to keep the ShareLaTeX code
  44 base maintained as free software.</p>
  45
  46 But these two are not the only alternatives.
  47 <a href="https://app.fiduswriter.org/">Fidus Writer</a> is another free
  48 software solution with <a href="https://github.com/fiduswriter">the
  49 source available on github</a>.  I have not used it myself.  Several
  50 others can be found on the nice
  51 <a href="https://alternativeto.net/software/sharelatex/">alterntiveTo
  52 web service</a>.
  53
  54 <p>If you like Google Docs or Etherpad, but would like to write
  55 documents in LaTeX, you should check out these services.  You can even
  56 host your own, if you want to. :)</p>
  57
  58 </div>
  59       <div class="tags">
  60
  61
  62         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</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/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>
  71       <div class="date">25th October 2017</div>
  72       <div class="body"><p>Recently, I needed to automatically check the copyright status of a
  73 set of <a href="http://www.imdb.com/">The Internet Movie database
  74 (IMDB)</a> entries, to figure out which one of the movies they refer
  75 to can be freely distributed on the Internet.  This proved to be
  76 harder than it sounds.  IMDB for sure list movies without any
  77 copyright protection, where the copyright protection has expired or
  78 where the movie is lisenced using a permissive license like one from
  79 Creative Commons.  These are mixed with copyright protected movies,
  80 and there seem to be no way to separate these classes of movies using
  81 the information in IMDB.</p>
  82
  83 <p>First I tried to look up entries manually in IMDB,
  84 <a href="https://www.wikipedia.org/">Wikipedia</a> and
  85 <a href="https://www.archive.org/">The Internet Archive</a>, to get a
  86 feel how to do this.  It is hard to know for sure using these sources,
  87 but it should be possible to be reasonable confident a movie is "out
  88 of copyright" with a few hours work per movie.  As I needed to check
  89 almost 20,000 entries, this approach was not sustainable.  I simply
  90 can not work around the clock for about 6 years to check this data
  91 set.</p>
  92
  93 <p>I asked the people behind The Internet Archive if they could
  94 introduce a new metadata field in their metadata XML for IMDB ID, but
  95 was told that they leave it completely to the uploaders to update the
  96 metadata.  Some of the metadata entries had IMDB links in the
  97 description, but I found no way to download all metadata files in bulk
  98 to locate those ones and put that approach aside.</p>
  99
 100 <p>In the process I noticed several Wikipedia articles about movies
 101 had links to both IMDB and The Internet Archive, and it occured to me
 102 that I could use the Wikipedia RDF data set to locate entries with
 103 both, to at least get a lower bound on the number of movies on The
 104 Internet Archive with a IMDB ID.  This is useful based on the
 105 assumption that movies distributed by The Internet Archive can be
 106 legally distributed on the Internet.  With some help from the RDF
 107 community (thank you DanC), I was able to come up with this query to
 108 pass to <a href="https://query.wikidata.org/">the SPARQL interface on
 109 Wikidata</a>:
 110
 111 <p><pre>
 112 SELECT ?work ?imdb ?ia ?when ?label
 113 WHERE
 114 {
 115   ?work wdt:P31/wdt:P279* wd:Q11424.
 116   ?work wdt:P345 ?imdb.
 117   ?work wdt:P724 ?ia.
 118   OPTIONAL {
 119         ?work wdt:P577 ?when.
 120         ?work rdfs:label ?label.
 121         FILTER(LANG(?label) = "en").
 122   }
 123 }
 124 </pre></p>
 125
 126 <p>If I understand the query right, for every film entry anywhere in
 127 Wikpedia, it will return the IMDB ID and The Internet Archive ID, and
 128 when the movie was released and its English title, if either or both
 129 of the latter two are available.  At the moment the result set contain
 130 2338 entries.  Of course, it depend on volunteers including both
 131 correct IMDB and The Internet Archive IDs in the wikipedia articles
 132 for the movie.  It should be noted that the result will include
 133 duplicates if the movie have entries in several languages.  There are
 134 some bogus entries, either because The Internet Archive ID contain a
 135 typo or because the movie is not available from The Internet Archive.
 136 I did not verify the IMDB IDs, as I am unsure how to do that
 137 automatically.</p>
 138
 139 <p>I wrote a small python script to extract the data set from Wikidata
 140 and check if the XML metadata for the movie is available from The
 141 Internet Archive, and after around 1.5 hour it produced a list of 2097
 142 free movies and their IMDB ID.  In total, 171 entries in Wikidata lack
 143 the refered Internet Archive entry.  I assume the 70 "disappearing"
 144 entries (ie 2338-2097-171) are duplicate entries.</p>
 145
 146 <p>This is not too bad, given that The Internet Archive report to
 147 contain <a href="https://archive.org/details/feature_films">5331
 148 feature films</a> at the moment, but it also mean more than 3000
 149 movies are missing on Wikipedia or are missing the pair of references
 150 on Wikipedia.</p>
 151
 152 <p>I was curious about the distribution by release year, and made a
 153 little graph to show how the amount of free movies is spread over the
 154 years:<p>
 155
 156 <p><img src="http://people.skolelinux.org/pere/blog/images/2017-10-25-verk-i-det-fri-filmer.png"></p>
 157
 158 <p>I expect the relative distribution of the remaining 3000 movies to
 159 be similar.</p>
 160
 161 <p>If you want to help, and want to ensure Wikipedia can be used to
 162 cross reference The Internet Archive and The Internet Movie Database,
 163 please make sure entries like this are listed under the "External
 164 links" heading on the Wikipedia article for the movie:</p>
 165
 166 <p><pre>
 167 * {{Internet Archive film|id=FightingLady}}
 168 * {{IMDb title|id=0036823|title=The Fighting Lady}}
 169 </pre></p>
 170
 171 <p>Please verify the links on the final page, to make sure you did not
 172 introduce a typo.</p>
 173
 174 <p>Here is the complete list, if you want to correct the 171
 175 identified Wikipedia entries with broken links to The Internet
 176 Archive: <a href="http://www.wikidata.org/entity/Q1140317">Q1140317</a>,
 177 <a href="http://www.wikidata.org/entity/Q458656">Q458656</a>,
 178 <a href="http://www.wikidata.org/entity/Q458656">Q458656</a>,
 179 <a href="http://www.wikidata.org/entity/Q470560">Q470560</a>,
 180 <a href="http://www.wikidata.org/entity/Q743340">Q743340</a>,
 181 <a href="http://www.wikidata.org/entity/Q822580">Q822580</a>,
 182 <a href="http://www.wikidata.org/entity/Q480696">Q480696</a>,
 183 <a href="http://www.wikidata.org/entity/Q128761">Q128761</a>,
 184 <a href="http://www.wikidata.org/entity/Q1307059">Q1307059</a>,
 185 <a href="http://www.wikidata.org/entity/Q1335091">Q1335091</a>,
 186 <a href="http://www.wikidata.org/entity/Q1537166">Q1537166</a>,
 187 <a href="http://www.wikidata.org/entity/Q1438334">Q1438334</a>,
 188 <a href="http://www.wikidata.org/entity/Q1479751">Q1479751</a>,
 189 <a href="http://www.wikidata.org/entity/Q1497200">Q1497200</a>,
 190 <a href="http://www.wikidata.org/entity/Q1498122">Q1498122</a>,
 191 <a href="http://www.wikidata.org/entity/Q865973">Q865973</a>,
 192 <a href="http://www.wikidata.org/entity/Q834269">Q834269</a>,
 193 <a href="http://www.wikidata.org/entity/Q841781">Q841781</a>,
 194 <a href="http://www.wikidata.org/entity/Q841781">Q841781</a>,
 195 <a href="http://www.wikidata.org/entity/Q1548193">Q1548193</a>,
 196 <a href="http://www.wikidata.org/entity/Q499031">Q499031</a>,
 197 <a href="http://www.wikidata.org/entity/Q1564769">Q1564769</a>,
 198 <a href="http://www.wikidata.org/entity/Q1585239">Q1585239</a>,
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 211 <a href="http://www.wikidata.org/entity/Q882066">Q882066</a>,
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 346 <a href="http://www.wikidata.org/entity/Q774474">Q774474</a></p>
 347 </div>
 348       <div class="tags">
 349
 350
 351         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>.
 352
 353
 354       </div>
 355     </div>
 356     <div class="padding"></div>
 357
 358     <div class="entry">
 359       <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>
 360       <div class="date">14th October 2017</div>
 361       <div class="body"><p>I find it fascinating how many of the people being locked inside
 362 the proposed border wall between USA and Mexico support the idea.  The
 363 proposal to keep Mexicans out reminds me of
 364 <a href="http://www.history.com/news/10-things-you-may-not-know-about-the-berlin-wall">the
 365 propaganda twist from the East Germany government</a> calling the wall
 366 the “Antifascist Bulwark” after erecting the Berlin Wall, claiming
 367 that the wall was erected to keep enemies from creeping into East
 368 Germany, while it was obvious to the people locked inside it that it
 369 was erected to keep the people from escaping.</p>
 370
 371 <p>Do the people in USA supporting this wall really believe it is a
 372 one way wall, only keeping people on the outside from getting in,
 373 while not keeping people in the inside from getting out?</p>
 374 </div>
 375       <div class="tags">
 376
 377
 378         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 379
 380
 381       </div>
 382     </div>
 383     <div class="padding"></div>
 384
 385     <div class="entry">
 386       <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>
 387       <div class="date"> 9th October 2017</div>
 388       <div class="body"><p>At my nearby maker space,
 389 <a href="http://sonen.ifi.uio.no/">Sonen</a>, I heard the story that it
 390 was easier to generate gcode files for theyr 3D printers (Ultimake 2+)
 391 on Windows and MacOS X than Linux, because the software involved had
 392 to be manually compiled and set up on Linux while premade packages
 393 worked out of the box on Windows and MacOS X.  I found this annoying,
 394 as the software involved,
 395 <a href="https://github.com/Ultimaker/Cura">Cura</a>, is free software
 396 and should be trivial to get up and running on Linux if someone took
 397 the time to package it for the relevant distributions.  I even found
 398 <a href="https://bugs.debian.org/706656">a request for adding into
 399 Debian</a> from 2013, which had seem some activity over the years but
 400 never resulted in the software showing up in Debian.  So a few days
 401 ago I offered my help to try to improve the situation.</p>
 402
 403 <p>Now I am very happy to see that all the packages required by a
 404 working Cura in Debian are uploaded into Debian and waiting in the NEW
 405 queue for the ftpmasters to have a look.  You can track the progress
 406 on
 407 <a href="https://qa.debian.org/developer.php?email=3dprinter-general%40lists.alioth.debian.org">the
 408 status page for the 3D printer team</a>.</p>
 409
 410 <p>The uploaded packages are a bit behind upstream, and was uploaded
 411 now to get slots in <a href="https://ftp-master.debian.org/new.html">the NEW
 412 queue</a> while we work up updating the packages to the latest
 413 upstream version.</p>
 414
 415 <p>On a related note, two competitors for Cura, which I found harder
 416 to use and was unable to configure correctly for Ultimaker 2+ in the
 417 short time I spent on it, are already in Debian.  If you are looking
 418 for 3D printer "slicers" and want something already available in
 419 Debian, check out
 420 <a href="https://tracker.debian.org/pkg/slic3r">slic3r</a> and
 421 <a href="https://tracker.debian.org/pkg/slic3r-prusa">slic3r-prusa</a>.
 422 The latter is a fork of the former.</p>
 423 </div>
 424       <div class="tags">
 425
 426
 427         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>.
 428
 429
 430       </div>
 431     </div>
 432     <div class="padding"></div>
 433
 434     <div class="entry">
 435       <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>
 436       <div class="date"> 4th October 2017</div>
 437       <div class="body">Når jeg holder på med ulike prosjekter, så trenger jeg stadig ulike
 438 skruer.  Det siste prosjektet jeg holder på med er å lage
 439 <a href="https://www.thingiverse.com/thing:676916">en boks til en
 440 HDMI-touch-skjerm</a> som skal brukes med Raspberry Pi.  Boksen settes
 441 sammen med skruer og bolter, og jeg har vært i tvil om hvor jeg kan
 442 få tak i de riktige skruene.  Clas Ohlson og Jernia i nærheten har
 443 sjelden hatt det jeg trenger.  Men her om dagen fikk jeg et fantastisk
 444 tips for oss som bor i Oslo.
 445 <a href="http://www.zachskruer.no/">Zachariassen Jernvare AS</a> i
 446 <a href="http://www.openstreetmap.org/?mlat=59.93421&mlon=10.76795#map=19/59.93421/10.76795">Hegermannsgate
 447 23A på Torshov</a> har et fantastisk utvalg, og åpent mellom 09:00 og
 448 17:00.  De selger skruer, muttere, bolter, skiver etc i løs vekt, og
 449 så langt har jeg fått alt jeg har lett etter.  De har i tillegg det
 450 meste av annen jernvare, som verktøy, lamper, ledninger, etc.  Jeg
 451 håper de har nok kunder til å holde det gående lenge, da dette er en
 452 butikk jeg kommer til å besøke ofte.  Butikken er et funn å ha i
 453 nabolaget for oss som liker å bygge litt selv. :)</p>
 454 </div>
 455       <div class="tags">
 456
 457
 458         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>.
 459
 460
 461       </div>
 462     </div>
 463     <div class="padding"></div>
 464
 465     <div class="entry">
 466       <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>
 467       <div class="date">29th September 2017</div>
 468       <div class="body"><p>Every mobile phone announce its existence over radio to the nearby
 469 mobile cell towers.  And this radio chatter is available for anyone
 470 with a radio receiver capable of receiving them.  Details about the
 471 mobile phones with very good accuracy is of course collected by the
 472 phone companies, but this is not the topic of this blog post.  The
 473 mobile phone radio chatter make it possible to figure out when a cell
 474 phone is nearby, as it include the SIM card ID (IMSI).  By paying
 475 attention over time, one can see when a phone arrive and when it leave
 476 an area.  I believe it would be nice to make this information more
 477 available to the general public, to make more people aware of how
 478 their phones are announcing their whereabouts to anyone that care to
 479 listen.</p>
 480
 481 <p>I am very happy to report that we managed to get something
 482 visualizing this information up and running for
 483 <a href="http://norwaymakers.org/osf17">Oslo Skaperfestival 2017</a>
 484 (Oslo Makers Festival) taking place today and tomorrow at Deichmanske
 485 library.  The solution is based on the
 486 <a href="http://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html">simple
 487 recipe for listening to GSM chatter</a> I posted a few days ago, and
 488 will show up at the stand of <a href="http://sonen.ifi.uio.no/">Åpen
 489 Sone from the Computer Science department of the University of
 490 Oslo</a>.  The presentation will show the nearby mobile phones (aka
 491 IMSIs) as dots in a web browser graph, with lines to the dot
 492 representing mobile base station it is talking to. It was working in
 493 the lab yesterday, and was moved into place this morning.</p>
 494
 495 <p>We set up a fairly powerful desktop machine using Debian
 496 Buster/Testing with several (five, I believe) RTL2838 DVB-T receivers
 497 connected and visualize the visible cell phone towers using an
 498 <a href="https://github.com/marlow925/hopglass">English version of
 499 Hopglass</a>.  A fairly powerfull machine is needed as the
 500 grgsm_livemon_headless processes from
 501 <a href="https://tracker.debian.org/pkg/gr-gsm">gr-gsm</a> converting
 502 the radio signal to data packages is quite CPU intensive.</p>
 503
 504 <p>The frequencies to listen to, are identified using a slightly
 505 patched scan-and-livemon (to set the --args values for each receiver),
 506 and the Hopglass data is generated using the
 507 <a href="https://github.com/petterreinholdtsen/IMSI-catcher/tree/meshviewer-output">patches
 508 in my meshviewer-output branch</a>.  For some reason we could not get
 509 more than four SDRs working.  There is also a geographical map trying
 510 to show the location of the base stations, but I believe their
 511 coordinates are hardcoded to some random location in Germany, I
 512 believe.  The code should be replaced with code to look up location in
 513 a text file, a sqlite database or one of the online databases
 514 mentioned in
 515 <a href="https://github.com/Oros42/IMSI-catcher/issues/14">the github
 516 issue for the topic</a>.
 517
 518 <p>If this sound interesting, visit the stand at the festival!</p>
 519 </div>
 520       <div class="tags">
 521
 522
 523         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>.
 524
 525
 526       </div>
 527     </div>
 528     <div class="padding"></div>
 529
 530     <div class="entry">
 531       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html">Easier recipe to observe the cell phones around you</a></div>
 532       <div class="date">24th September 2017</div>
 533       <div class="body"><p>A little more than a month ago I wrote
 534 <a href="http://people.skolelinux.org/pere/blog/Simpler_recipe_on_how_to_make_a_simple__7_IMSI_Catcher_using_Debian.html">how
 535 to observe the SIM card ID (aka IMSI number) of mobile phones talking
 536 to nearby mobile phone base stations using Debian GNU/Linux and a
 537 cheap USB software defined radio</a>, and thus being able to pinpoint
 538 the location of people and equipment (like cars and trains) with an
 539 accuracy of a few kilometer.  Since then we have worked to make the
 540 procedure even simpler, and it is now possible to do this without any
 541 manual frequency tuning and without building your own packages.</p>
 542
 543 <p>The <a href="https://tracker.debian.org/pkg/gr-gsm">gr-gsm</a>
 544 package is now included in Debian testing and unstable, and the
 545 IMSI-catcher code no longer require root access to fetch and decode
 546 the GSM data collected using gr-gsm.</p>
 547
 548 <p>Here is an updated recipe, using packages built by Debian and a git
 549 clone of two python scripts:</p>
 550
 551 <ol>
 552
 553 <li>Start with a Debian machine running the Buster version (aka
 554   testing).</li>
 555
 556 <li>Run '<tt>apt install gr-gsm python-numpy python-scipy
 557   python-scapy</tt>' as root to install required packages.</li>
 558
 559 <li>Fetch the code decoding GSM packages using '<tt>git clone
 560   github.com/Oros42/IMSI-catcher.git</tt>'.</li>
 561
 562 <li>Insert USB software defined radio supported by GNU Radio.</li>
 563
 564 <li>Enter the IMSI-catcher directory and run '<tt>python
 565   scan-and-livemon</tt>' to locate the frequency of nearby base
 566   stations and start listening for GSM packages on one of them.</li>
 567
 568 <li>Enter the IMSI-catcher directory and run '<tt>python
 569   simple_IMSI-catcher.py</tt>' to display the collected information.</li>
 570
 571 </ol>
 572
 573 <p>Note, due to a bug somewhere the scan-and-livemon program (actually
 574 <a href="https://github.com/ptrkrysik/gr-gsm/issues/336">its underlying
 575 program grgsm_scanner</a>) do not work with the HackRF radio.  It does
 576 work with RTL 8232 and other similar USB radio receivers you can get
 577 very cheaply
 578 (<a href="https://www.ebay.com/sch/items/?_nkw=rtl+2832">for example
 579 from ebay</a>), so for now the solution is to scan using the RTL radio
 580 and only use HackRF for fetching GSM data.</p>
 581
 582 <p>As far as I can tell, a cell phone only show up on one of the
 583 frequencies at the time, so if you are going to track and count every
 584 cell phone around you, you need to listen to all the frequencies used.
 585 To listen to several frequencies, use the --numrecv argument to
 586 scan-and-livemon to use several receivers.  Further, I am not sure if
 587 phones using 3G or 4G will show as talking GSM to base stations, so
 588 this approach might not see all phones around you.  I typically see
 589 0-400 IMSI numbers an hour when looking around where I live.</p>
 590
 591 <p>I've tried to run the scanner on a
 592 <a href="https://wiki.debian.org/RaspberryPi">Raspberry Pi 2 and 3
 593 running Debian Buster</a>, but the grgsm_livemon_headless process seem
 594 to be too CPU intensive to keep up.  When GNU Radio print 'O' to
 595 stdout, I am told there it is caused by a buffer overflow between the
 596 radio and GNU Radio, caused by the program being unable to read the
 597 GSM data fast enough.  If you see a stream of 'O's from the terminal
 598 where you started scan-and-livemon, you need a give the process more
 599 CPU power.  Perhaps someone are able to optimize the code to a point
 600 where it become possible to set up RPi3 based GSM sniffers?  I tried
 601 using Raspbian instead of Debian, but there seem to be something wrong
 602 with GNU Radio on raspbian, causing glibc to abort().</p>
 603 </div>
 604       <div class="tags">
 605
 606
 607         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>.
 608
 609
 610       </div>
 611     </div>
 612     <div class="padding"></div>
 613
 614     <div class="entry">
 615       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Datalagringsdirektivet_kaster_skygger_over_H_yre_og_Arbeiderpartiet.html">Datalagringsdirektivet kaster skygger over Høyre og Arbeiderpartiet</a></div>
 616       <div class="date"> 7th September 2017</div>
 617       <div class="body"><p>For noen dager siden publiserte Jon Wessel-Aas en bloggpost om
 618 «<a href="http://www.uhuru.biz/?p=1821">Konklusjonen om datalagring som
 619 EU-kommisjonen ikke ville at vi skulle få se</a>».  Det er en
 620 interessant gjennomgang av EU-domstolens syn på snurpenotovervåkning
 621 av befolkningen, som er klar på at det er i strid med
 622 EU-lovgivingen.</p>
 623
 624 <p>Valgkampen går for fullt i Norge, og om noen få dager er siste
 625 frist for å avgi stemme.  En ting er sikkert, Høyre og Arbeiderpartiet
 626 får ikke min stemme
 627 <a href="http://people.skolelinux.org/pere/blog/Datalagringsdirektivet_gj_r_at_Oslo_H_yre_og_Arbeiderparti_ikke_f_r_min_stemme_i__r.html">denne
 628 gangen heller</a>.  Jeg har ikke glemt at de tvang igjennom loven som
 629 skulle pålegge alle data- og teletjenesteleverandører å overvåke alle
 630 sine kunder.  En lov som er vedtatt, og aldri opphevet igjen.</p>
 631
 632 <p>Det er tydelig fra diskusjonen rundt grenseløs digital overvåkning
 633 (eller "Digital Grenseforsvar" som det kalles i Orvellisk nytale) at
 634 hverken Høyre og Arbeiderpartiet har noen prinsipielle sperrer mot å
 635 overvåke hele befolkningen, og diskusjonen så langt tyder på at flere
 636 av de andre partiene heller ikke har det. Mange av
 637 <a href="https://data.holderdeord.no/votes/1301946411e">de som stemte
 638 for Datalagringsdirektivet i Stortinget</a> (64 fra Arbeiderpartiet,
 639 25 fra Høyre) er fortsatt aktive og argumenterer fortsatt for å radere
 640 vekk mer av innbyggernes privatsfære.</p>
 641
 642 <p>Når myndighetene demonstrerer sin mistillit til folket, tror jeg
 643 folket selv bør legge litt innsats i å verne sitt privatliv, ved å ta
 644 i bruk ende-til-ende-kryptert kommunikasjon med sine kjente og kjære,
 645 og begrense hvor mye privat informasjon som deles med uvedkommende.
 646 Det er jo ingenting som tyder på at myndighetene kommer til å være vår
 647 privatsfære.
 648 <a href="http://people.skolelinux.org/pere/blog/How_to_talk_with_your_loved_ones_in_private.html">Det
 649 er mange muligheter</a>.  Selv har jeg litt sans for
 650 <a href="https://ring.cx/">Ring</a>, som er basert på p2p-teknologi
 651 uten sentral kontroll, er fri programvare, og støtter meldinger, tale
 652 og video.  Systemet er tilgjengelig ut av boksen fra
 653 <a href="https://tracker.debian.org/pkg/ring">Debian</a> og
 654 <a href="https://launchpad.net/ubuntu/+source/ring">Ubuntu</a>, og det
 655 finnes pakker for Android, MacOSX og Windows.  Foreløpig er det få
 656 brukere med Ring, slik at jeg også bruker
 657 <a href="https://signal.org/">Signal</a> som nettleserutvidelse.</p>
 658 </div>
 659       <div class="tags">
 660
 661
 662         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/dld">dld</a>, <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>, <a href="http://people.skolelinux.org/pere/blog/tags/valg">valg</a>.
 663
 664
 665       </div>
 666     </div>
 667     <div class="padding"></div>
 668
 669     <div class="entry">
 670       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Simpler_recipe_on_how_to_make_a_simple__7_IMSI_Catcher_using_Debian.html">Simpler recipe on how to make a simple $7 IMSI Catcher using Debian</a></div>
 671       <div class="date"> 9th August 2017</div>
 672       <div class="body"><p>On friday, I came across an interesting article in the Norwegian
 673 web based ICT news magazine digi.no on
 674 <a href="https://www.digi.no/artikler/sikkerhetsforsker-lagde-enkel-imsi-catcher-for-60-kroner-na-kan-mobiler-kartlegges-av-alle/398588">how
 675 to collect the IMSI numbers of nearby cell phones</a> using the cheap
 676 DVB-T software defined radios.  The article refered to instructions
 677 and <a href="https://www.youtube.com/watch?v=UjwgNd_as30">a recipe by
 678 Keld Norman on Youtube on how to make a simple $7 IMSI Catcher</a>, and I decided to test them out.</p>
 679
 680 <p>The instructions said to use Ubuntu, install pip using apt (to
 681 bypass apt), use pip to install pybombs (to bypass both apt and pip),
 682 and the ask pybombs to fetch and build everything you need from
 683 scratch.  I wanted to see if I could do the same on the most recent
 684 Debian packages, but this did not work because pybombs tried to build
 685 stuff that no longer build with the most recent openssl library or
 686 some other version skew problem.  While trying to get this recipe
 687 working, I learned that the apt->pip->pybombs route was a long detour,
 688 and the only piece of software dependency missing in Debian was the
 689 gr-gsm package.  I also found out that the lead upstream developer of
 690 gr-gsm (the name stand for GNU Radio GSM) project already had a set of
 691 Debian packages provided in an Ubuntu PPA repository.  All I needed to
 692 do was to dget the Debian source package and built it.</p>
 693
 694 <p>The IMSI collector is a python script listening for packages on the
 695 loopback network device and printing to the terminal some specific GSM
 696 packages with IMSI numbers in them.  The code is fairly short and easy
 697 to understand.  The reason this work is because gr-gsm include a tool
 698 to read GSM data from a software defined radio like a DVB-T USB stick
 699 and other software defined radios, decode them and inject them into a
 700 network device on your Linux machine (using the loopback device by
 701 default).  This proved to work just fine, and I've been testing the
 702 collector for a few days now.</p>
 703
 704 <p>The updated and simpler recipe is thus to</p>
 705
 706 <ol>
 707
 708 <li>start with a Debian machine running Stretch or newer,</li>
 709
 710 <li>build and install the gr-gsm package available from
 711 <a href="http://ppa.launchpad.net/ptrkrysik/gr-gsm/ubuntu/pool/main/g/gr-gsm/">http://ppa.launchpad.net/ptrkrysik/gr-gsm/ubuntu/pool/main/g/gr-gsm/</a>,</li>
 712
 713 <li>clone the git repostory from <a href="https://github.com/Oros42/IMSI-catcher">https://github.com/Oros42/IMSI-catcher</a>,</li>
 714
 715 <li>run grgsm_livemon and adjust the frequency until the terminal
 716 where it was started is filled with a stream of text (meaning you
 717 found a GSM station).</li>
 718
 719 <li>go into the IMSI-catcher directory and run 'sudo python simple_IMSI-catcher.py' to extract the IMSI numbers.</li>
 720
 721 </ol>
 722
 723 <p>To make it even easier in the future to get this sniffer up and
 724 running, I decided to package
 725 <a href="https://github.com/ptrkrysik/gr-gsm/">the gr-gsm project</a>
 726 for Debian (<a href="https://bugs.debian.org/871055">WNPP
 727 #871055</a>), and the package was uploaded into the NEW queue today.
 728 Luckily the gnuradio maintainer has promised to help me, as I do not
 729 know much about gnuradio stuff yet.</p>
 730
 731 <p>I doubt this "IMSI cacher" is anywhere near as powerfull as
 732 commercial tools like
 733 <a href="https://www.thespyphone.com/portable-imsi-imei-catcher/">The
 734 Spy Phone Portable IMSI / IMEI Catcher</a> or the
 735 <a href="https://en.wikipedia.org/wiki/Stingray_phone_tracker">Harris
 736 Stingray</a>, but I hope the existance of cheap alternatives can make
 737 more people realise how their whereabouts when carrying a cell phone
 738 is easily tracked.  Seeing the data flow on the screen, realizing that
 739 I live close to a police station and knowing that the police is also
 740 wearing cell phones, I wonder how hard it would be for criminals to
 741 track the position of the police officers to discover when there are
 742 police near by, or for foreign military forces to track the location
 743 of the Norwegian military forces, or for anyone to track the location
 744 of government officials...</p>
 745
 746 <p>It is worth noting that the data reported by the IMSI-catcher
 747 script mentioned above is only a fraction of the data broadcasted on
 748 the GSM network.  It will only collect one frequency at the time,
 749 while a typical phone will be using several frequencies, and not all
 750 phones will be using the frequencies tracked by the grgsm_livemod
 751 program.  Also, there is a lot of radio chatter being ignored by the
 752 simple_IMSI-catcher script, which would be collected by extending the
 753 parser code.  I wonder if gr-gsm can be set up to listen to more than
 754 one frequency?</p>
 755 </div>
 756       <div class="tags">
 757
 758
 759         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>.
 760
 761
 762       </div>
 763     </div>
 764     <div class="padding"></div>
 765
 766     <div class="entry">
 767       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Norwegian_Bokm_l_edition_of_Debian_Administrator_s_Handbook_is_now_available.html">Norwegian Bokmål edition of Debian Administrator's Handbook is now available</a></div>
 768       <div class="date">25th July 2017</div>
 769       <div class="body"><p align="center"><img align="center" src="http://people.skolelinux.org/pere/blog/images/2017-07-25-debian-handbook-nb-testprint.png"/></p>
 770
 771 <p>I finally received a copy of the Norwegian Bokmål edition of
 772 "<a href="https://debian-handbook.info/">The Debian Administrator's
 773 Handbook</a>".  This test copy arrived in the mail a few days ago, and
 774 I am very happy to hold the result in my hand.   We spent around one and a half year translating it. This paperbook edition
 775 <a href="https://debian-handbook.info/get/#norwegian">is available
 776 from lulu.com</a>.  If you buy it quickly, you save 25% on the list
 777 price.  The book is also available for download in electronic form as
 778 PDF, EPUB and Mobipocket, as can be
 779 <a href="https://debian-handbook.info/browse/nb-NO/stable/">read online
 780 as a web page</a>.</p>
 781
 782 <p>This is the second book I publish (the first was the book
 783 "<a href="http://free-culture.cc/">Free Culture</a>" by Lawrence Lessig
 784 in
 785 <a href="http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html">English</a>,
 786 <a href="http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html">French</a>
 787 and
 788 <a href="http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html">Norwegian
 789 Bokmål</a>), and I am very excited to finally wrap up this
 790 project.  I hope
 791 "<a href="http://www.lulu.com/shop/rapha%C3%ABl-hertzog-and-roland-mas/h%C3%A5ndbok-for-debian-administratoren/paperback/product-23262290.html">Håndbok
 792 for Debian-administratoren</a>" will be well received.</p>
 793 </div>
 794       <div class="tags">
 795
 796
 797         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 798
 799
 800       </div>
 801     </div>
 802     <div class="padding"></div>
 803
 804     <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>
 805     <div id="sidebar">
 806
 807
 808
 809 <h2>Archive</h2>
 810 <ul>
 811
 812 <li>2017
 813 <ul>
 814
 815 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 816
 817 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 818
 819 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 820
 821 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 822
 823 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 824
 825 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 826
 827 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 828
 829 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 830
 831 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 832
 833 </ul></li>
 834
 835 <li>2016
 836 <ul>
 837
 838 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 839
 840 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 841
 842 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 843
 844 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 845
 846 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 847
 848 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 849
 850 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 851
 852 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 853
 854 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 855
 856 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 857
 858 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 859
 860 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 861
 862 </ul></li>
 863
 864 <li>2015
 865 <ul>
 866
 867 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 868
 869 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 870
 871 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 872
 873 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 874
 875 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 876
 877 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 878
 879 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 880
 881 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 882
 883 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 884
 885 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 886
 887 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 888
 889 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 890
 891 </ul></li>
 892
 893 <li>2014
 894 <ul>
 895
 896 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 897
 898 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 899
 900 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 901
 902 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 903
 904 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 905
 906 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 907
 908 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 909
 910 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 911
 912 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 913
 914 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 915
 916 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 917
 918 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 919
 920 </ul></li>
 921
 922 <li>2013
 923 <ul>
 924
 925 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 926
 927 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 928
 929 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 930
 931 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 932
 933 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 934
 935 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 936
 937 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 938
 939 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 940
 941 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 942
 943 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 944
 945 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 946
 947 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 948
 949 </ul></li>
 950
 951 <li>2012
 952 <ul>
 953
 954 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 955
 956 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 957
 958 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 959
 960 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 961
 962 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 963
 964 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 965
 966 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 967
 968 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 969
 970 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 971
 972 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 973
 974 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 975
 976 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 977
 978 </ul></li>
 979
 980 <li>2011
 981 <ul>
 982
 983 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 984
 985 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 986
 987 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 988
 989 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 990
 991 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 992
 993 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 994
 995 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 996
 997 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 998
 999 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
1000
1001 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
1002
1003 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
1004
1005 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
1006
1007 </ul></li>
1008
1009 <li>2010
1010 <ul>
1011
1012 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
1013
1014 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
1015
1016 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
1017
1018 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
1019
1020 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
1021
1022 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
1023
1024 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
1025
1026 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
1027
1028 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
1029
1030 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
1031
1032 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
1033
1034 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
1035
1036 </ul></li>
1037
1038 <li>2009
1039 <ul>
1040
1041 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
1042
1043 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
1044
1045 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
1046
1047 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
1048
1049 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
1050
1051 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
1052
1053 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
1054
1055 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
1056
1057 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
1058
1059 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
1060
1061 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
1062
1063 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
1064
1065 </ul></li>
1066
1067 <li>2008
1068 <ul>
1069
1070 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
1071
1072 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
1073
1074 </ul></li>
1075
1076 </ul>
1077
1078
1079
1080 <h2>Tags</h2>
1081 <ul>
1082
1083  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (14)</a></li>
1084
1085  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
1086
1087  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
1088
1089  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
1090
1091  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
1092
1093  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (16)</a></li>
1094
1095  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
1096
1097  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
1098
1099  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (154)</a></li>
1100
1101  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
1102
1103  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
1104
1105  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
1106
1107  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
1108
1109  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (24)</a></li>
1110
1111  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1112
1113  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (357)</a></li>
1114
1115  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1116
1117  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
1118
1119  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (30)</a></li>
1120
1121  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
1122
1123  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
1124
1125  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
1126
1127  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
1128
1129  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (15)</a></li>
1130
1131  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
1132
1133  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1134
1135  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1136
1137  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1138
1139  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1140
1141  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1142
1143  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
1144
1145  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (9)</a></li>
1146
1147  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (293)</a></li>
1148
1149  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (189)</a></li>
1150
1151  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
1152
1153  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1154
1155  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (65)</a></li>
1156
1157  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (104)</a></li>
1158
1159  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
1160
1161  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1162
1163  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1164
1165  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1166
1167  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
1168
1169  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1170
1171  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (5)</a></li>
1172
1173  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1174
1175  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (53)</a></li>
1176
1177  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1178
1179  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1180
1181  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
1182
1183  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
1184
1185  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
1186
1187  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (52)</a></li>
1188
1189  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (3)</a></li>
1190
1191  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1192
1193  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1194
1195  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (59)</a></li>
1196
1197  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1198
1199  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (40)</a></li>
1200
1201 </ul>
1202
1203
1204     </div>
1205     <p style="text-align: right">
1206  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
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