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