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  14  <h1>
  15      <a href="https://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <h3>Entries from September 2017.</h3>
  23
  24     <div class="entry">
  25       <div class="title">
  26         <a href="https://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>
  27       </div>
  28       <div class="date">
  29         29th September 2017
  30       </div>
  31       <div class="body">
  32         <p>Every mobile phone announce its existence over radio to the nearby
  33 mobile cell towers.  And this radio chatter is available for anyone
  34 with a radio receiver capable of receiving them.  Details about the
  35 mobile phones with very good accuracy is of course collected by the
  36 phone companies, but this is not the topic of this blog post.  The
  37 mobile phone radio chatter make it possible to figure out when a cell
  38 phone is nearby, as it include the SIM card ID (IMSI).  By paying
  39 attention over time, one can see when a phone arrive and when it leave
  40 an area.  I believe it would be nice to make this information more
  41 available to the general public, to make more people aware of how
  42 their phones are announcing their whereabouts to anyone that care to
  43 listen.</p>
  44
  45 <p>I am very happy to report that we managed to get something
  46 visualizing this information up and running for
  47 <a href="http://norwaymakers.org/osf17">Oslo Skaperfestival 2017</a>
  48 (Oslo Makers Festival) taking place today and tomorrow at Deichmanske
  49 library.  The solution is based on the
  50 <a href="https://people.skolelinux.org/pere/blog/Easier_recipe_to_observe_the_cell_phones_around_you.html">simple
  51 recipe for listening to GSM chatter</a> I posted a few days ago, and
  52 will show up at the stand of <a href="http://sonen.ifi.uio.no/">Åpen
  53 Sone from the Computer Science department of the University of
  54 Oslo</a>.  The presentation will show the nearby mobile phones (aka
  55 IMSIs) as dots in a web browser graph, with lines to the dot
  56 representing mobile base station it is talking to. It was working in
  57 the lab yesterday, and was moved into place this morning.</p>
  58
  59 <p>We set up a fairly powerful desktop machine using Debian
  60 Buster/Testing with several (five, I believe) RTL2838 DVB-T receivers
  61 connected and visualize the visible cell phone towers using an
  62 <a href="https://github.com/marlow925/hopglass">English version of
  63 Hopglass</a>.  A fairly powerfull machine is needed as the
  64 grgsm_livemon_headless processes from
  65 <a href="https://tracker.debian.org/pkg/gr-gsm">gr-gsm</a> converting
  66 the radio signal to data packages is quite CPU intensive.</p>
  67
  68 <p>The frequencies to listen to, are identified using a slightly
  69 patched scan-and-livemon (to set the --args values for each receiver),
  70 and the Hopglass data is generated using the
  71 <a href="https://github.com/petterreinholdtsen/IMSI-catcher/tree/meshviewer-output">patches
  72 in my meshviewer-output branch</a>.  For some reason we could not get
  73 more than four SDRs working.  There is also a geographical map trying
  74 to show the location of the base stations, but I believe their
  75 coordinates are hardcoded to some random location in Germany, I
  76 believe.  The code should be replaced with code to look up location in
  77 a text file, a sqlite database or one of the online databases
  78 mentioned in
  79 <a href="https://github.com/Oros42/IMSI-catcher/issues/14">the github
  80 issue for the topic</a>.
  81
  82 <p>If this sound interesting, visit the stand at the festival!</p>
  83
  84       </div>
  85       <div class="tags">
  86
  87
  88         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="https://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
  89
  90
  91       </div>
  92     </div>
  93     <div class="padding"></div>
  94
  95     <div class="entry">
  96       <div class="title">
  97         <a href="https://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>
  98       </div>
  99       <div class="date">
 100         24th September 2017
 101       </div>
 102       <div class="body">
 103         <p>A little more than a month ago I wrote
 104 <a href="https://people.skolelinux.org/pere/blog/Simpler_recipe_on_how_to_make_a_simple__7_IMSI_Catcher_using_Debian.html">how
 105 to observe the SIM card ID (aka IMSI number) of mobile phones talking
 106 to nearby mobile phone base stations using Debian GNU/Linux and a
 107 cheap USB software defined radio</a>, and thus being able to pinpoint
 108 the location of people and equipment (like cars and trains) with an
 109 accuracy of a few kilometer.  Since then we have worked to make the
 110 procedure even simpler, and it is now possible to do this without any
 111 manual frequency tuning and without building your own packages.</p>
 112
 113 <p>The <a href="https://tracker.debian.org/pkg/gr-gsm">gr-gsm</a>
 114 package is now included in Debian testing and unstable, and the
 115 IMSI-catcher code no longer require root access to fetch and decode
 116 the GSM data collected using gr-gsm.</p>
 117
 118 <p>Here is an updated recipe, using packages built by Debian and a git
 119 clone of two python scripts:</p>
 120
 121 <ol>
 122
 123 <li>Start with a Debian machine running the Buster version (aka
 124   testing).</li>
 125
 126 <li>Run '<tt>apt install gr-gsm python-numpy python-scipy
 127   python-scapy</tt>' as root to install required packages.</li>
 128
 129 <li>Fetch the code decoding GSM packages using '<tt>git clone
 130   github.com/Oros42/IMSI-catcher.git</tt>'.</li>
 131
 132 <li>Insert USB software defined radio supported by GNU Radio.</li>
 133
 134 <li>Enter the IMSI-catcher directory and run '<tt>python
 135   scan-and-livemon</tt>' to locate the frequency of nearby base
 136   stations and start listening for GSM packages on one of them.</li>
 137
 138 <li>Enter the IMSI-catcher directory and run '<tt>python
 139   simple_IMSI-catcher.py</tt>' to display the collected information.</li>
 140
 141 </ol>
 142
 143 <p>Note, due to a bug somewhere the scan-and-livemon program (actually
 144 <a href="https://github.com/ptrkrysik/gr-gsm/issues/336">its underlying
 145 program grgsm_scanner</a>) do not work with the HackRF radio.  It does
 146 work with RTL 8232 and other similar USB radio receivers you can get
 147 very cheaply
 148 (<a href="https://www.ebay.com/sch/items/?_nkw=rtl+2832">for example
 149 from ebay</a>), so for now the solution is to scan using the RTL radio
 150 and only use HackRF for fetching GSM data.</p>
 151
 152 <p>As far as I can tell, a cell phone only show up on one of the
 153 frequencies at the time, so if you are going to track and count every
 154 cell phone around you, you need to listen to all the frequencies used.
 155 To listen to several frequencies, use the --numrecv argument to
 156 scan-and-livemon to use several receivers.  Further, I am not sure if
 157 phones using 3G or 4G will show as talking GSM to base stations, so
 158 this approach might not see all phones around you.  I typically see
 159 0-400 IMSI numbers an hour when looking around where I live.</p>
 160
 161 <p>I've tried to run the scanner on a
 162 <a href="https://wiki.debian.org/RaspberryPi">Raspberry Pi 2 and 3
 163 running Debian Buster</a>, but the grgsm_livemon_headless process seem
 164 to be too CPU intensive to keep up.  When GNU Radio print 'O' to
 165 stdout, I am told there it is caused by a buffer overflow between the
 166 radio and GNU Radio, caused by the program being unable to read the
 167 GSM data fast enough.  If you see a stream of 'O's from the terminal
 168 where you started scan-and-livemon, you need a give the process more
 169 CPU power.  Perhaps someone are able to optimize the code to a point
 170 where it become possible to set up RPi3 based GSM sniffers?  I tried
 171 using Raspbian instead of Debian, but there seem to be something wrong
 172 with GNU Radio on raspbian, causing glibc to abort().</p>
 173
 174       </div>
 175       <div class="tags">
 176
 177
 178         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="https://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 179
 180
 181       </div>
 182     </div>
 183     <div class="padding"></div>
 184
 185     <div class="entry">
 186       <div class="title">
 187         <a href="https://people.skolelinux.org/pere/blog/Datalagringsdirektivet_kaster_skygger_over_H_yre_og_Arbeiderpartiet.html">Datalagringsdirektivet kaster skygger over Høyre og Arbeiderpartiet</a>
 188       </div>
 189       <div class="date">
 190          7th September 2017
 191       </div>
 192       <div class="body">
 193         <p>For noen dager siden publiserte Jon Wessel-Aas en bloggpost om
 194 «<a href="http://www.uhuru.biz/?p=1821">Konklusjonen om datalagring som
 195 EU-kommisjonen ikke ville at vi skulle få se</a>».  Det er en
 196 interessant gjennomgang av EU-domstolens syn på snurpenotovervåkning
 197 av befolkningen, som er klar på at det er i strid med
 198 EU-lovgivingen.</p>
 199
 200 <p>Valgkampen går for fullt i Norge, og om noen få dager er siste
 201 frist for å avgi stemme.  En ting er sikkert, Høyre og Arbeiderpartiet
 202 får ikke min stemme
 203 <a href="https://people.skolelinux.org/pere/blog/Datalagringsdirektivet_gj_r_at_Oslo_H_yre_og_Arbeiderparti_ikke_f_r_min_stemme_i__r.html">denne
 204 gangen heller</a>.  Jeg har ikke glemt at de tvang igjennom loven som
 205 skulle pålegge alle data- og teletjenesteleverandører å overvåke alle
 206 sine kunder.  En lov som er vedtatt, og aldri opphevet igjen.</p>
 207
 208 <p>Det er tydelig fra diskusjonen rundt grenseløs digital overvåkning
 209 (eller "Digital Grenseforsvar" som det kalles i Orvellisk nytale) at
 210 hverken Høyre og Arbeiderpartiet har noen prinsipielle sperrer mot å
 211 overvåke hele befolkningen, og diskusjonen så langt tyder på at flere
 212 av de andre partiene heller ikke har det. Mange av
 213 <a href="https://data.holderdeord.no/votes/1301946411e">de som stemte
 214 for Datalagringsdirektivet i Stortinget</a> (64 fra Arbeiderpartiet,
 215 25 fra Høyre) er fortsatt aktive og argumenterer fortsatt for å radere
 216 vekk mer av innbyggernes privatsfære.</p>
 217
 218 <p>Når myndighetene demonstrerer sin mistillit til folket, tror jeg
 219 folket selv bør legge litt innsats i å verne sitt privatliv, ved å ta
 220 i bruk ende-til-ende-kryptert kommunikasjon med sine kjente og kjære,
 221 og begrense hvor mye privat informasjon som deles med uvedkommende.
 222 Det er jo ingenting som tyder på at myndighetene kommer til å være vår
 223 privatsfære.
 224 <a href="https://people.skolelinux.org/pere/blog/How_to_talk_with_your_loved_ones_in_private.html">Det
 225 er mange muligheter</a>.  Selv har jeg litt sans for
 226 <a href="https://ring.cx/">Ring</a>, som er basert på p2p-teknologi
 227 uten sentral kontroll, er fri programvare, og støtter meldinger, tale
 228 og video.  Systemet er tilgjengelig ut av boksen fra
 229 <a href="https://tracker.debian.org/pkg/ring">Debian</a> og
 230 <a href="https://launchpad.net/ubuntu/+source/ring">Ubuntu</a>, og det
 231 finnes pakker for Android, MacOSX og Windows.  Foreløpig er det få
 232 brukere med Ring, slik at jeg også bruker
 233 <a href="https://signal.org/">Signal</a> som nettleserutvidelse.</p>
 234
 235       </div>
 236       <div class="tags">
 237
 238
 239         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/dld">dld</a>, <a href="https://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="https://people.skolelinux.org/pere/blog/tags/stortinget">stortinget</a>, <a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>, <a href="https://people.skolelinux.org/pere/blog/tags/valg">valg</a>.
 240
 241
 242       </div>
 243     </div>
 244     <div class="padding"></div>
 245
 246     <p style="text-align: right;"><a href="09.rss"><img src="https://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
 247     <div id="sidebar">
 248
 249
 250
 251 <h2>Archive</h2>
 252 <ul>
 253
 254 <li>2024
 255 <ul>
 256
 257 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/01/">January (1)</a></li>
 258
 259 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/02/">February (1)</a></li>
 260
 261 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/03/">March (2)</a></li>
 262
 263 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/04/">April (3)</a></li>
 264
 265 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/05/">May (1)</a></li>
 266
 267 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/06/">June (1)</a></li>
 268
 269 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/07/">July (1)</a></li>
 270
 271 </ul></li>
 272
 273 <li>2023
 274 <ul>
 275
 276 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/01/">January (3)</a></li>
 277
 278 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/02/">February (1)</a></li>
 279
 280 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/04/">April (2)</a></li>
 281
 282 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/05/">May (3)</a></li>
 283
 284 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/06/">June (1)</a></li>
 285
 286 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/08/">August (1)</a></li>
 287
 288 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/09/">September (1)</a></li>
 289
 290 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/10/">October (1)</a></li>
 291
 292 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/11/">November (4)</a></li>
 293
 294 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/12/">December (1)</a></li>
 295
 296 </ul></li>
 297
 298 <li>2022
 299 <ul>
 300
 301 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/02/">February (1)</a></li>
 302
 303 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/03/">March (3)</a></li>
 304
 305 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/04/">April (2)</a></li>
 306
 307 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/06/">June (2)</a></li>
 308
 309 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/07/">July (1)</a></li>
 310
 311 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/09/">September (1)</a></li>
 312
 313 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/10/">October (1)</a></li>
 314
 315 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/12/">December (1)</a></li>
 316
 317 </ul></li>
 318
 319 <li>2021
 320 <ul>
 321
 322 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/01/">January (2)</a></li>
 323
 324 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/02/">February (1)</a></li>
 325
 326 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/05/">May (1)</a></li>
 327
 328 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/06/">June (1)</a></li>
 329
 330 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/07/">July (3)</a></li>
 331
 332 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/08/">August (1)</a></li>
 333
 334 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/09/">September (1)</a></li>
 335
 336 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/10/">October (1)</a></li>
 337
 338 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/12/">December (1)</a></li>
 339
 340 </ul></li>
 341
 342 <li>2020
 343 <ul>
 344
 345 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
 346
 347 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
 348
 349 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/04/">April (2)</a></li>
 350
 351 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/05/">May (3)</a></li>
 352
 353 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/06/">June (2)</a></li>
 354
 355 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/07/">July (1)</a></li>
 356
 357 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/09/">September (1)</a></li>
 358
 359 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/10/">October (1)</a></li>
 360
 361 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/11/">November (1)</a></li>
 362
 363 </ul></li>
 364
 365 <li>2019
 366 <ul>
 367
 368 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
 369
 370 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
 371
 372 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
 373
 374 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
 375
 376 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
 377
 378 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
 379
 380 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
 381
 382 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
 383
 384 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
 385
 386 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
 387
 388 </ul></li>
 389
 390 <li>2018
 391 <ul>
 392
 393 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 394
 395 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 396
 397 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 398
 399 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 400
 401 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 402
 403 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 404
 405 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 406
 407 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 408
 409 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 410
 411 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 412
 413 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
 414
 415 </ul></li>
 416
 417 <li>2017
 418 <ul>
 419
 420 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 421
 422 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 423
 424 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 425
 426 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 427
 428 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 429
 430 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 431
 432 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 433
 434 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 435
 436 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 437
 438 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 439
 440 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 441
 442 </ul></li>
 443
 444 <li>2016
 445 <ul>
 446
 447 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 448
 449 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 450
 451 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 452
 453 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 454
 455 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 456
 457 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 458
 459 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 460
 461 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 462
 463 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 464
 465 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 466
 467 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 468
 469 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 470
 471 </ul></li>
 472
 473 <li>2015
 474 <ul>
 475
 476 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 477
 478 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 479
 480 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 481
 482 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 483
 484 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 485
 486 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 487
 488 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 489
 490 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 491
 492 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 493
 494 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 495
 496 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 497
 498 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 499
 500 </ul></li>
 501
 502 <li>2014
 503 <ul>
 504
 505 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 506
 507 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 508
 509 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 510
 511 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 512
 513 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 514
 515 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 516
 517 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 518
 519 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 520
 521 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 522
 523 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 524
 525 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 526
 527 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 528
 529 </ul></li>
 530
 531 <li>2013
 532 <ul>
 533
 534 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 535
 536 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 537
 538 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 539
 540 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 541
 542 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 543
 544 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 545
 546 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 547
 548 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 549
 550 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 551
 552 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 553
 554 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 555
 556 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 557
 558 </ul></li>
 559
 560 <li>2012
 561 <ul>
 562
 563 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 564
 565 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 566
 567 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 568
 569 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 570
 571 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 572
 573 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 574
 575 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 576
 577 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 578
 579 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 580
 581 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 582
 583 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 584
 585 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 586
 587 </ul></li>
 588
 589 <li>2011
 590 <ul>
 591
 592 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 593
 594 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 595
 596 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 597
 598 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 599
 600 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 601
 602 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 603
 604 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 605
 606 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 607
 608 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 609
 610 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 611
 612 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 613
 614 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 615
 616 </ul></li>
 617
 618 <li>2010
 619 <ul>
 620
 621 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 622
 623 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 624
 625 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 626
 627 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 628
 629 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 630
 631 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 632
 633 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 634
 635 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 636
 637 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 638
 639 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 640
 641 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 642
 643 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 644
 645 </ul></li>
 646
 647 <li>2009
 648 <ul>
 649
 650 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 651
 652 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 653
 654 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 655
 656 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 657
 658 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 659
 660 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 661
 662 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 663
 664 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 665
 666 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 667
 668 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 669
 670 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 671
 672 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 673
 674 </ul></li>
 675
 676 <li>2008
 677 <ul>
 678
 679 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 680
 681 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 682
 683 </ul></li>
 684
 685 </ul>
 686
 687
 688
 689 <h2>Tags</h2>
 690 <ul>
 691
 692  <li><a href="https://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (19)</a></li>
 693
 694  <li><a href="https://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 695
 696  <li><a href="https://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 697
 698  <li><a href="https://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 699
 700  <li><a href="https://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (9)</a></li>
 701
 702  <li><a href="https://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (13)</a></li>
 703
 704  <li><a href="https://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
 705
 706  <li><a href="https://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 707
 708  <li><a href="https://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (3)</a></li>
 709
 710  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian">debian (201)</a></li>
 711
 712  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (159)</a></li>
 713
 714  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (9)</a></li>
 715
 716  <li><a href="https://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
 717
 718  <li><a href="https://people.skolelinux.org/pere/blog/tags/dld">dld (18)</a></li>
 719
 720  <li><a href="https://people.skolelinux.org/pere/blog/tags/docbook">docbook (33)</a></li>
 721
 722  <li><a href="https://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 723
 724  <li><a href="https://people.skolelinux.org/pere/blog/tags/english">english (463)</a></li>
 725
 726  <li><a href="https://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 727
 728  <li><a href="https://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
 729
 730  <li><a href="https://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
 731
 732  <li><a href="https://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 733
 734  <li><a href="https://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
 735
 736  <li><a href="https://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 737
 738  <li><a href="https://people.skolelinux.org/pere/blog/tags/intervju">intervju (43)</a></li>
 739
 740  <li><a href="https://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (18)</a></li>
 741
 742  <li><a href="https://people.skolelinux.org/pere/blog/tags/kart">kart (23)</a></li>
 743
 744  <li><a href="https://people.skolelinux.org/pere/blog/tags/kodi">kodi (6)</a></li>
 745
 746  <li><a href="https://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 747
 748  <li><a href="https://people.skolelinux.org/pere/blog/tags/lego">lego (5)</a></li>
 749
 750  <li><a href="https://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 751
 752  <li><a href="https://people.skolelinux.org/pere/blog/tags/linuxcnc">linuxcnc (7)</a></li>
 753
 754  <li><a href="https://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 755
 756  <li><a href="https://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 757
 758  <li><a href="https://people.skolelinux.org/pere/blog/tags/madewithcc">madewithcc (3)</a></li>
 759
 760  <li><a href="https://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 761
 762  <li><a href="https://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (46)</a></li>
 763
 764  <li><a href="https://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (15)</a></li>
 765
 766  <li><a href="https://people.skolelinux.org/pere/blog/tags/noark5">noark5 (25)</a></li>
 767
 768  <li><a href="https://people.skolelinux.org/pere/blog/tags/norsk">norsk (325)</a></li>
 769
 770  <li><a href="https://people.skolelinux.org/pere/blog/tags/nuug">nuug (199)</a></li>
 771
 772  <li><a href="https://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (41)</a></li>
 773
 774  <li><a href="https://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 775
 776  <li><a href="https://people.skolelinux.org/pere/blog/tags/opensnitch">opensnitch (4)</a></li>
 777
 778  <li><a href="https://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (76)</a></li>
 779
 780  <li><a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern (114)</a></li>
 781
 782  <li><a href="https://people.skolelinux.org/pere/blog/tags/raid">raid (4)</a></li>
 783
 784  <li><a href="https://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 785
 786  <li><a href="https://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 787
 788  <li><a href="https://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 789
 790  <li><a href="https://people.skolelinux.org/pere/blog/tags/robot">robot (17)</a></li>
 791
 792  <li><a href="https://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 793
 794  <li><a href="https://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
 795
 796  <li><a href="https://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 797
 798  <li><a href="https://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (60)</a></li>
 799
 800  <li><a href="https://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 801
 802  <li><a href="https://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 803
 804  <li><a href="https://people.skolelinux.org/pere/blog/tags/standard">standard (76)</a></li>
 805
 806  <li><a href="https://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
 807
 808  <li><a href="https://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (14)</a></li>
 809
 810  <li><a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (65)</a></li>
 811
 812  <li><a href="https://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (5)</a></li>
 813
 814  <li><a href="https://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 815
 816  <li><a href="https://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 817
 818  <li><a href="https://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (22)</a></li>
 819
 820  <li><a href="https://people.skolelinux.org/pere/blog/tags/video">video (80)</a></li>
 821
 822  <li><a href="https://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 823
 824  <li><a href="https://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
 825
 826 </ul>
 827
 828
 829     </div>
 830     <p style="text-align: right">
 831  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 832 </p>
 833
 834   </body>
 835 </html>