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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <h3>Entries from October 2013.</h3>
  23
  24     <div class="entry">
  25       <div class="title">
  26         <a href="http://people.skolelinux.org/pere/blog/Det_er_jo_makta_som_er_mest_s_rbar_ved_massiv_overv_kning_av_Internett.html">Det er jo makta som er mest sårbar ved massiv overvåkning av Internett</a>
  27       </div>
  28       <div class="date">
  29         26th October 2013
  30       </div>
  31       <div class="body">
  32         <p>De siste måneders eksponering av
  33 <a href="http://www.aftenposten.no/nyheter/uriks/Her-er-Edvard-Snowdens-mest-omtalte-avsloringer-7351734.html">den
  34 totale overvåkningen som foregår i den vestlige verden dokumenterer
  35 hvor sårbare vi er</a>.  Men det slår meg at de som er mest sårbare
  36 for dette, myndighetspersoner på alle nivåer, neppe har innsett at de
  37 selv er de mest interessante personene å lage profiler på, for å kunne
  38 påvirke dem.</p>
  39
  40 <p>For å ta et lite eksempel: Stortingets nettsted,
  41 <a href="http://www.stortinget.no/">www.stortinget.no</a> (og
  42 forsåvidt også
  43 <a href="http://data.stortinget.no/">data.stortinget.no</a>),
  44 inneholder informasjon om det som foregår på Stortinget, og jeg antar
  45 de største brukerne av informasjonen der er representanter og
  46 rådgivere på Stortinget.  Intet overraskende med det.  Det som derimot
  47 er mer skjult er at Stortingets nettsted bruker
  48 <a href="http://en.wikipedia.org/wiki/Google_Analytics">Google
  49 Analytics</a>, hvilket gjør at enhver som besøker nettsidene der også
  50 rapporterer om besøket via Internett-linjer som passerer Sverige,
  51 England og videre til USA.  Det betyr at informasjon om ethvert besøk
  52 på stortingets nettsider kan snappes opp av svensk, britisk og USAs
  53 etterretningsvesen.  De kan dermed holde et øye med hvilke
  54 Stortingssaker stortingsrepresentantene synes er interessante å sjekke
  55 ut, og hvilke sider rådgivere og andre på stortinget synes er
  56 interessant å besøke, når de gjør det og hvilke andre representanter
  57 som sjekker de samme sidene omtrent samtidig.  Stortingets bruk av
  58 Google Analytics gjør det dermed enkelt for utenlands etteretning å
  59 spore representantenes aktivitet og interesse.  Hvis noen av
  60 representantene bruker Google Mail eller noen andre tjenestene som
  61 krever innlogging, så vil det være enda enklere å finne ut nøyaktig
  62 hvilke personer som bruker hvilke nettlesere og dermed knytte
  63 informasjonen opp til enkeltpersoner på Stortinget.</p>
  64
  65 <p>Og jo flere nettsteder som bruker Google Analytics, jo bedre
  66 oversikt over stortingsrepresentantenes lesevaner og interesse blir
  67 tilgjengelig for svensk, britisk og USAs etterretning.  Hva de kan
  68 bruke den informasjonen til overlater jeg til leseren å undres
  69 over.</p>
  70
  71       </div>
  72       <div class="tags">
  73
  74
  75         Tags: <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/sikkerhet">sikkerhet</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>.
  76
  77
  78       </div>
  79     </div>
  80     <div class="padding"></div>
  81
  82     <div class="entry">
  83       <div class="title">
  84         <a href="http://people.skolelinux.org/pere/blog/A_Raspberry_Pi_based_batman_adv_Mesh_network_node.html">A Raspberry Pi based batman-adv Mesh network node</a>
  85       </div>
  86       <div class="date">
  87         21st October 2013
  88       </div>
  89       <div class="body">
  90         <p>The last few days I have been experimenting with
  91 <a href="http://www.open-mesh.org/projects/batman-adv/wiki">the
  92 batman-adv mesh technology</a>.  I want to gain some experience to see
  93 if it will fit <a href="https://wiki.debian.org/FreedomBox">the
  94 Freedombox project</a>, and together with my neighbors try to build a
  95 mesh network around the park where I live.  Batman-adv is a layer 2
  96 mesh system ("ethernet" in other words), where the mesh network appear
  97 as if all the mesh clients are connected to the same switch.</p>
  98
  99 <p>My hardware of choice was the Linksys WRT54GL routers I had lying
 100 around, but I've been unable to get them working with batman-adv.  So
 101 instead, I started playing with a
 102 <a href="http://www.raspberrypi.org/">Raspberry Pi</a>, and tried to
 103 get it working as a mesh node.  My idea is to use it to create a mesh
 104 node which function as a switch port, where everything connected to
 105 the Raspberry Pi ethernet plug is connected (bridged) to the mesh
 106 network.  This allow me to hook a wifi base station like the Linksys
 107 WRT54GL to the mesh by plugging it into a Raspberry Pi, and allow
 108 non-mesh clients to hook up to the mesh.  This in turn is useful for
 109 Android phones using <a href="http://servalproject.org/">the Serval
 110 Project</a> voip client, allowing every one around the playground to
 111 phone and message each other for free.  The reason is that Android
 112 phones do not see ad-hoc wifi networks (they are filtered away from
 113 the GUI view), and can not join the mesh without being rooted.  But if
 114 they are connected using a normal wifi base station, they can talk to
 115 every client on the local network.</p>
 116
 117 <p>To get this working, I've created a debian package
 118 <a href="https://github.com/petterreinholdtsen/meshfx-node">meshfx-node</a>
 119 and a script
 120 <a href="https://github.com/petterreinholdtsen/meshfx-node/blob/master/build-rpi-mesh-node">build-rpi-mesh-node</a>
 121 to create the Raspberry Pi boot image.  I'm using Debian Jessie (and
 122 not Raspbian), to get more control over the packages available.
 123 Unfortunately a huge binary blob need to be inserted into the boot
 124 image to get it booting, but I'll ignore that for now.  Also, as
 125 Debian lack support for the CPU features available in the Raspberry
 126 Pi, the system do not use the hardware floating point unit.  I hope
 127 the routing performance isn't affected by the lack of hardware FPU
 128 support.</p>
 129
 130 <p>To create an image, run the following with a sudo enabled user
 131 after inserting the target SD card into the build machine:</p>
 132
 133 <p><pre>
 134 % wget -O build-rpi-mesh-node \
 135     https://raw.github.com/petterreinholdtsen/meshfx-node/master/build-rpi-mesh-node
 136 % sudo bash -x ./build-rpi-mesh-node > build.log 2>&1
 137 % dd if=/root/rpi/rpi_basic_jessie_$(date +%Y%m%d).img of=/dev/mmcblk0 bs=1M
 138 %
 139 </pre></p>
 140
 141 <p>Booting with the resulting SD card on a Raspberry PI with a USB
 142 wifi card inserted should give you a mesh node.  At least it does for
 143 me with a the wifi card I am using. The default mesh settings are the
 144 ones used by the Oslo mesh project at Hackeriet, as I mentioned in
 145 <a href="http://people.skolelinux.org/pere/blog/Oslo_community_mesh_network___with_NUUG_and_Hackeriet_at_Hausmania.html">an
 146 earlier blog post about this mesh testing</a>.</p>
 147
 148 <p>The mesh node was not horribly expensive either.  I bought
 149 everything over the counter in shops nearby.  If I had ordered online
 150 from the lowest bidder, the price should be significantly lower:</p>
 151
 152 <p><table>
 153
 154 <tr><th>Supplier</th><th>Model</th><th>NOK</th></tr>
 155 <tr><td>Teknikkmagasinet</td><td>Raspberry Pi model B</td><td>349.90</td></tr>
 156 <tr><td>Teknikkmagasinet</td><td>Raspberry Pi type B case</td><td>99.90</td></tr>
 157 <tr><td>Lefdal</td><td>Jensen Air:Link 25150</td><td>295.-</td></tr>
 158 <tr><td>Clas Ohlson</td><td>Kingston 16 GB SD card</td><td>199.-</td></tr>
 159 <tr><td>Total cost</td><td></td><td>943.80</td></tr>
 160
 161 </table></p>
 162
 163 <p>Now my mesh network at home consist of one laptop in the basement
 164 connected to my production network, one Raspberry Pi node on the 1th
 165 floor that can be seen by my neighbor across the park, and one
 166 play-node I use to develop the image building script.  And some times
 167 I hook up my work horse laptop to the mesh to test it.  I look forward
 168 to figuring out what kind of latency the batman-adv setup will give,
 169 and how much packet loss we will experience around the park. :)</p>
 170
 171       </div>
 172       <div class="tags">
 173
 174
 175         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>.
 176
 177
 178       </div>
 179     </div>
 180     <div class="padding"></div>
 181
 182     <div class="entry">
 183       <div class="title">
 184         <a href="http://people.skolelinux.org/pere/blog/Perl_library_to_control_the_Spykee_robot_moved_to_github.html">Perl library to control the Spykee robot moved to github</a>
 185       </div>
 186       <div class="date">
 187         19th October 2013
 188       </div>
 189       <div class="body">
 190         <p>Back in 2010, I created a Perl library to talk to
 191 <a href="http://en.wikipedia.org/wiki/Spykee">the Spykee robot</a>
 192 (with two belts, wifi, USB and Linux) and made it available from my
 193 web page.  Today I concluded that it should move to a site that is
 194 easier to use to cooperate with others, and moved it to github.  If
 195 you got a Spykee robot, you might want to check out
 196 <a href="https://github.com/petterreinholdtsen/libspykee-perl">the
 197 libspykee-perl github repository</a>.</p>
 198
 199       </div>
 200       <div class="tags">
 201
 202
 203         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/robot">robot</a>.
 204
 205
 206       </div>
 207     </div>
 208     <div class="padding"></div>
 209
 210     <div class="entry">
 211       <div class="title">
 212         <a href="http://people.skolelinux.org/pere/blog/Good_causes__Debian_Outreach_Program_for_Women__EFF_documenting_the_spying_and_Open_access_in_Norway.html">Good causes: Debian Outreach Program for Women, EFF documenting the spying and Open access in Norway</a>
 213       </div>
 214       <div class="date">
 215         15th October 2013
 216       </div>
 217       <div class="body">
 218         <p>The last few days I came across a few good causes that should get
 219 wider attention.  I recommend signing and donating to each one of
 220 these. :)</p>
 221
 222 <p>Via <a href="http://www.debian.org/News/weekly/2013/18/">Debian
 223 Project News for 2013-10-14</a> I came across the Outreach Program for
 224 Women program which is a Google Summer of Code like initiative to get
 225 more women involved in free software.  One debian sponsor has offered
 226 to match <a href="http://debian.ch/opw2013">any donation done to Debian
 227 earmarked</a> for this initiative.  I donated a few minutes ago, and
 228 hope you will to. :)</p>
 229
 230 <p>And the Electronic Frontier Foundation just announced plans to
 231 create <a href="https://supporters.eff.org/donate/nsa-videos">video
 232 documentaries about the excessive spying</a> on every Internet user that
 233 take place these days, and their need to fund the work.  I've already
 234 donated.  Are you next?</p>
 235
 236 <p>For my Norwegian audience, the organisation Studentenes og
 237 Akademikernes Internasjonale Hjelpefond is collecting signatures for a
 238 statement under the heading
 239 <a href="http://saih.no/Bloggers_United/">Bloggers United for Open
 240 Access</a> for those of us asking for more focus on open access in the
 241 Norwegian government.  So far 499 signatures.  I hope you will sign it
 242 too.</p>
 243
 244       </div>
 245       <div class="tags">
 246
 247
 248         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/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 249
 250
 251       </div>
 252     </div>
 253     <div class="padding"></div>
 254
 255     <div class="entry">
 256       <div class="title">
 257         <a href="http://people.skolelinux.org/pere/blog/Oslo_community_mesh_network___with_NUUG_and_Hackeriet_at_Hausmania.html">Oslo community mesh network - with NUUG and Hackeriet at Hausmania</a>
 258       </div>
 259       <div class="date">
 260         11th October 2013
 261       </div>
 262       <div class="body">
 263         <p>Wireless mesh networks are self organising and self healing
 264 networks that can be used to connect computers across small and large
 265 areas, depending on the radio technology used.  Normal wifi equipment
 266 can be used to create home made radio networks, and there are several
 267 successful examples like
 268 <a href="http://www.freifunk.net/">Freifunk</a> and
 269 <a href="http://www.awmn.net/">Athens Wireless Metropolitan Network</a>
 270 (see
 271 <a href="http://en.wikipedia.org/wiki/List_of_wireless_community_networks_by_region#Greece">wikipedia
 272 for a large list</a>) around the globe.  To give you an idea how it
 273 work, check out the nice overview of the Kiel Freifunk community which
 274 can be seen from their
 275 <a href="http://freifunk.in-kiel.de/ffmap/nodes.html">dynamically
 276 updated node graph and map</a>, where one can see how the mesh nodes
 277 automatically handle routing and recover from nodes disappearing.
 278 There is also a small community mesh network group in Oslo, Norway,
 279 and that is the main topic of this blog post.</p>
 280
 281 <p>I've wanted to check out mesh networks for a while now, and hoped
 282 to do it as part of my involvement with the <a
 283 href="http://www.nuug.no/">NUUG member organisation</a> community, and
 284 my recent involvement in
 285 <a href="https://wiki.debian.org/FreedomBox">the Freedombox project</a>
 286 finally lead me to give mesh networks some priority, as I suspect a
 287 Freedombox should use mesh networks to connect neighbours and family
 288 when possible, given that most communication between people are
 289 between those nearby (as shown for example by research on Facebook
 290 communication patterns).  It also allow people to communicate without
 291 any central hub to tap into for those that want to listen in on the
 292 private communication of citizens, which have become more and more
 293 important over the years.</p>
 294
 295 <p>So far I have only been able to find one group of people in Oslo
 296 working on community mesh networks, over at the hack space
 297 <a href="http://hackeriet.no/">Hackeriet</a> at Husmania.  They seem to
 298 have started with some Freifunk based effort using OLSR, called
 299 <a href="http://oslo.freifunk.net/index.php?title=Main_Page">the Oslo
 300 Freifunk project</a>, but that effort is now dead and the people
 301 behind it have moved on to a batman-adv based system called
 302 <a href="http://meshfx.org/trac">meshfx</a>.  Unfortunately the wiki
 303 site for the Oslo Freifunk project is no longer possible to update to
 304 reflect this fact, so the old project page can't be updated to point to
 305 the new project.  A while back, the people at Hackeriet invited people
 306 from the Freifunk community to Oslo to talk about mesh networks.  I
 307 came across this video where Hans Jørgen Lysglimt interview the
 308 speakers about this talk (from
 309 <a href="https://www.youtube.com/watch?v=N2Kd7CLkhSY">youtube</a>):</p>
 310
 311 <p><iframe width="420" height="315" src="https://www.youtube.com/embed/N2Kd7CLkhSY" frameborder="0" allowfullscreen></iframe></p>
 312
 313 <p>I mentioned OLSR and batman-adv, which are mesh routing protocols.
 314 There are heaps of different protocols, and I am still struggling to
 315 figure out which one would be "best" for some definitions of best, but
 316 given that the community mesh group in Oslo is so small, I believe it
 317 is best to hook up with the existing one instead of trying to create a
 318 completely different setup, and thus I have decided to focus on
 319 batman-adv for now.  It sure help me to  know that the very cool
 320 <a href="http://www.servalproject.org/">Serval project in Australia</a>
 321 is using batman-adv as their meshing technology when it create a self
 322 organizing and self healing telephony system for disaster areas and
 323 less industrialized communities.  Check out this cool video presenting
 324 that project (from
 325 <a href="https://www.youtube.com/watch?v=30qNfzJCQOA">youtube</a>):</p>
 326
 327 <p><iframe width="560" height="315" src="https://www.youtube.com/embed/30qNfzJCQOA" frameborder="0" allowfullscreen></iframe></p>
 328
 329 <p>According to the wikipedia page on
 330 <a href="http://en.wikipedia.org/wiki/Wireless_mesh_network">Wireless
 331 mesh network</a> there are around 70 competing schemes for routing
 332 packets across mesh networks, and OLSR, B.A.T.M.A.N. and
 333 B.A.T.M.A.N. advanced are protocols used by several free software
 334 based community mesh networks.</p>
 335
 336 <p>The batman-adv protocol is a bit special, as it provide layer 2
 337 (as in ethernet ) routing, allowing ipv4 and ipv6 to work on the same
 338 network.  One way to think about it is that it provide a mesh based
 339 vlan you can bridge to or handle like any other vlan connected to your
 340 computer.  The required drivers are already in the Linux kernel at
 341 least since Debian Wheezy, and it is fairly easy to set up.  A
 342 <a href="http://www.open-mesh.org/projects/batman-adv/wiki/Quick-start-guide">good
 343 introduction</a> is available from the Open Mesh project.  These are
 344 the key settings needed to join the Oslo meshfx network:</p>
 345
 346 <p><table>
 347 <tr><th>Setting</th><th>Value</th></tr>
 348 <tr><td>Protocol / kernel module</td><td>batman-adv</td></tr>
 349 <tr><td>ESSID</td><td>meshfx@hackeriet</td></tr>
 350 <td>Channel / Frequency</td><td>11 / 2462</td></tr>
 351 <td>Cell ID</td><td>02:BA:00:00:00:01</td>
 352 </table></p>
 353
 354 <p>The reason for setting ad-hoc wifi Cell ID is to work around bugs
 355 in firmware used in wifi card and wifi drivers.  (See a nice post from
 356 VillageTelco about
 357 "<a href="http://tiebing.blogspot.no/2009/12/ad-hoc-cell-splitting-re-post-original.html">Information
 358 about cell-id splitting, stuck beacons, and failed IBSS merges!</a>
 359 for details.)  When these settings are activated and you have some
 360 other mesh node nearby, your computer will be connected to the mesh
 361 network and can communicate with any mesh node that is connected to
 362 any of the nodes in your network of nodes. :)</p>
 363
 364 <p>My initial plan was to reuse my old Linksys WRT54GL as a mesh node,
 365 but that seem to be very hard, as I have not been able to locate a
 366 firmware supporting batman-adv.  If anyone know how to use that old
 367 wifi access point with batman-adv these days, please let me know.</p>
 368
 369 <p>If you find this project interesting and want to join, please join
 370 us on IRC, either channel
 371 <a href="irc://irc.freenode.net/#oslohackerspace">#oslohackerspace</a>
 372 or <a href="irc://irc.freenode.net/#nuug">#nuug</a> on
 373 irc.freenode.net.</p>
 374
 375 <p>While investigating mesh networks in Oslo, I came across an old
 376 research paper from the university of Stavanger and Telenor Research
 377 and Innovation called
 378 <a href="http://folk.uio.no/paalee/publications/netrel-egeland-iswcs-2008.pdf">The
 379 reliability of wireless backhaul mesh networks</a> and elsewhere
 380 learned that Telenor have been experimenting with mesh networks at
 381 Grünerløkka in Oslo.  So mesh networks are also interesting for
 382 commercial companies, even though Telenor discovered that it was hard
 383 to figure out a good business plan for mesh networking and as far as I
 384 know have closed down the experiment.  Perhaps Telenor or others would
 385 be interested in a cooperation?</p>
 386
 387 <p><strong>Update 2013-10-12</strong>: I was just
 388 <a href="http://lists.alioth.debian.org/pipermail/freedombox-discuss/2013-October/005900.html">told
 389 by the Serval project developers</a> that they no longer use
 390 batman-adv (but are compatible with it), but their own crypto based
 391 mesh system.</p>
 392
 393       </div>
 394       <div class="tags">
 395
 396
 397         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>.
 398
 399
 400       </div>
 401     </div>
 402     <div class="padding"></div>
 403
 404     <div class="entry">
 405       <div class="title">
 406         <a href="http://people.skolelinux.org/pere/blog/Skolelinux___Debian_Edu_7_1_install_and_overview_video_from_Marcelo_Salvador.html">Skolelinux / Debian Edu 7.1 install and overview video from Marcelo Salvador</a>
 407       </div>
 408       <div class="date">
 409          8th October 2013
 410       </div>
 411       <div class="body">
 412         <p>The other day I was pleased and surprised to discover that Marcelo
 413 Salvador had published a
 414 <a href="https://www.youtube.com/watch?v=w-GgpdqgLFc">video on
 415 Youtube</a> showing how to install the standalone Debian Edu /
 416 Skolelinux profile.  This is the profile intended for use at home or
 417 on laptops that should not be integrated into the provided network
 418 services (no central home directory, no Kerberos / LDAP directory etc,
 419 in other word a single user machine).  The result is 11 minutes long,
 420 and show some user applications (seem to be rather randomly picked).
 421 Missed a few of my favorites like celestia, planets and chromium
 422 showing the <a href="http://www.zygotebody.com/">Zygote Body 3D model
 423 of the human body</a>, but I guess he did not know about those or find
 424 other programs more interesting. :) And the video do not show the
 425 advantages I believe is one of the most valuable featuers in Debian
 426 Edu, its central school server making it possible to run hundreds of
 427 computers without hard drives by installing one central
 428 <a href="http://www.ltsp.org/">LTSP server</a>.</p>
 429
 430 <p>Anyway, check out the video, embedded below and linked to above:</p>
 431
 432 <iframe width="420" height="315" src="http://www.youtube.com/embed/w-GgpdqgLFc" frameborder="0" allowfullscreen></iframe>
 433
 434 <p>Are there other nice videos demonstrating Skolelinux?  Please let
 435 me know. :)</p>
 436
 437       </div>
 438       <div class="tags">
 439
 440
 441         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 442
 443
 444       </div>
 445     </div>
 446     <div class="padding"></div>
 447
 448     <p style="text-align: right;"><a href="10.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
 449     <div id="sidebar">
 450
 451
 452
 453 <h2>Archive</h2>
 454 <ul>
 455
 456 <li>2013
 457 <ul>
 458
 459 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 460
 461 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 462
 463 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 464
 465 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 466
 467 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 468
 469 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 470
 471 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 472
 473 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 474
 475 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 476
 477 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (6)</a></li>
 478
 479 </ul></li>
 480
 481 <li>2012
 482 <ul>
 483
 484 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 485
 486 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 487
 488 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 489
 490 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 491
 492 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 493
 494 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 495
 496 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 497
 498 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 499
 500 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 501
 502 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 503
 504 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 505
 506 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 507
 508 </ul></li>
 509
 510 <li>2011
 511 <ul>
 512
 513 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 514
 515 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 516
 517 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 518
 519 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 520
 521 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 522
 523 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 524
 525 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 526
 527 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 528
 529 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 530
 531 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 532
 533 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 534
 535 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 536
 537 </ul></li>
 538
 539 <li>2010
 540 <ul>
 541
 542 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 543
 544 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 545
 546 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 547
 548 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 549
 550 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 551
 552 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 553
 554 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 555
 556 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 557
 558 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 559
 560 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 561
 562 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 563
 564 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 565
 566 </ul></li>
 567
 568 <li>2009
 569 <ul>
 570
 571 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 572
 573 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 574
 575 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 576
 577 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 578
 579 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 580
 581 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 582
 583 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 584
 585 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 586
 587 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 588
 589 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 590
 591 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 592
 593 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 594
 595 </ul></li>
 596
 597 <li>2008
 598 <ul>
 599
 600 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 601
 602 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 603
 604 </ul></li>
 605
 606 </ul>
 607
 608
 609
 610 <h2>Tags</h2>
 611 <ul>
 612
 613  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 614
 615  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 616
 617  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 618
 619  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 620
 621  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (7)</a></li>
 622
 623  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
 624
 625  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 626
 627  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (87)</a></li>
 628
 629  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (142)</a></li>
 630
 631  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 632
 633  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (10)</a></li>
 634
 635  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 636
 637  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (222)</a></li>
 638
 639  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (21)</a></li>
 640
 641  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 642
 643  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (12)</a></li>
 644
 645  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (4)</a></li>
 646
 647  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (11)</a></li>
 648
 649  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (37)</a></li>
 650
 651  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (7)</a></li>
 652
 653  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (18)</a></li>
 654
 655  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
 656
 657  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (6)</a></li>
 658
 659  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 660
 661  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (2)</a></li>
 662
 663  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (25)</a></li>
 664
 665  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (236)</a></li>
 666
 667  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (156)</a></li>
 668
 669  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (8)</a></li>
 670
 671  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 672
 673  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (45)</a></li>
 674
 675  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (67)</a></li>
 676
 677  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 678
 679  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 680
 681  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 682
 683  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (8)</a></li>
 684
 685  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 686
 687  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 688
 689  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 690
 691  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (32)</a></li>
 692
 693  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 694
 695  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 696
 697  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (43)</a></li>
 698
 699  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
 700
 701  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (9)</a></li>
 702
 703  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (20)</a></li>
 704
 705  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
 706
 707  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 708
 709  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (39)</a></li>
 710
 711  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 712
 713  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (28)</a></li>
 714
 715 </ul>
 716
 717
 718     </div>
 719     <p style="text-align: right">
 720  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 721 </p>
 722
 723   </body>
 724 </html>