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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/Teaching_vmdebootstrap_to_create_Raspberry_Pi_SD_card_images.html">Teaching vmdebootstrap to create Raspberry Pi SD card images</a>
  27       </div>
  28       <div class="date">
  29         27th October 2013
  30       </div>
  31       <div class="body">
  32         <p>The
  33 <a href="http://packages.qa.debian.org/v/vmdebootstrap.html">vmdebootstrap</a>
  34 program is a a very nice system to create virtual machine images.  It
  35 create a image file, add a partition table, mount it and run
  36 debootstrap in the mounted directory to create a Debian system on a
  37 stick.  Yesterday, I decided to try to teach it how to make images for
  38 <a href="https://wiki.debian.org/RaspberryPi">Raspberry Pi</a>, as part
  39 of a plan to simplify the build system for
  40 <a href="https://wiki.debian.org/FreedomBox">the FreedomBox
  41 project</a>.  The FreedomBox project already uses vmdebootstrap for
  42 the virtualbox images, but its current build system made multistrap
  43 based system for Dreamplug images, and it is lacking support for
  44 Raspberry Pi.</p>
  45
  46 <p>Armed with the knowledge on how to build "foreign" (aka non-native
  47 architecture) chroots for Raspberry Pi, I dived into the vmdebootstrap
  48 code and adjusted it to be able to build armel images on my amd64
  49 Debian laptop.  I ended up giving vmdebootstrap five new options,
  50 allowing me to replicate the image creation process I use to make
  51 <a href="http://people.skolelinux.org/pere/blog/A_Raspberry_Pi_based_batman_adv_Mesh_network_node.html">Debian
  52 Jessie based mesh node images for the Raspberry Pi</a>.  First, the
  53 <tt>--foreign /path/to/binfm_handler</tt> option tell vmdebootstrap to
  54 call debootstrap with --foreign and to copy the handler into the
  55 generated chroot before running the second stage.  This allow
  56 vmdebootstrap to create armel images on an amd64 host.  Next I added
  57 two new options <tt>--bootsize size</tt> and <tt>--boottype
  58 fstype</tt> to teach it to create a separate /boot/ partition with the
  59 given file system type, allowing me to create an image with a vfat
  60 partition for the /boot/ stuff.  I also added a <tt>--variant
  61 variant</tt> option to allow me to create smaller images without the
  62 Debian base system packages installed.  Finally, I added an option
  63 <tt>--no-extlinux</tt> to tell vmdebootstrap to not install extlinux
  64 as a boot loader.  It is not needed on the Raspberry Pi and probably
  65 most other non-x86 architectures.  The changes were accepted by the
  66 upstream author of vmdebootstrap yesterday and today, and is now
  67 available from
  68 <a href="http://git.liw.fi/cgi-bin/cgit/cgit.cgi/vmdebootstrap/">the
  69 upstream project page</a>.</p>
  70
  71 <p>To use it to build a Raspberry Pi image using Debian Jessie, first
  72 create a small script (the customize script) to add the non-free
  73 binary blob needed to boot the Raspberry Pi and the APT source
  74 list:</p>
  75
  76 <p><pre>
  77 #!/bin/sh
  78 set -e # Exit on first error
  79 rootdir="$1"
  80 cd "$rootdir"
  81 cat &lt;&lt;EOF > etc/apt/sources.list
  82 deb http://http.debian.net/debian/ jessie main contrib non-free
  83 EOF
  84 # Install non-free binary blob needed to boot Raspberry Pi.  This
  85 # install a kernel somewhere too.
  86 wget https://raw.github.com/Hexxeh/rpi-update/master/rpi-update \
  87     -O $rootdir/usr/bin/rpi-update
  88 chmod a+x $rootdir/usr/bin/rpi-update
  89 mkdir -p $rootdir/lib/modules
  90 touch $rootdir/boot/start.elf
  91 chroot $rootdir rpi-update
  92 </pre></p>
  93
  94 <p>Next, fetch the latest vmdebootstrap script and call it like this
  95 to build the image:</p>
  96
  97 <pre>
  98 sudo ./vmdebootstrap \
  99     --variant minbase \
 100     --arch armel \
 101     --distribution jessie \
 102     --mirror http://http.debian.net/debian \
 103     --image test.img \
 104     --size 600M \
 105     --bootsize 64M \
 106     --boottype vfat \
 107     --log-level debug \
 108     --verbose \
 109     --no-kernel \
 110     --no-extlinux \
 111     --root-password raspberry \
 112     --hostname raspberrypi \
 113     --foreign /usr/bin/qemu-arm-static \
 114     --customize `pwd`/customize \
 115     --package netbase \
 116     --package git-core \
 117     --package binutils \
 118     --package ca-certificates \
 119     --package wget \
 120     --package kmod
 121 </pre></p>
 122
 123 <p>The list of packages being installed are the ones needed by
 124 rpi-update to make the image bootable on the Raspberry Pi, with the
 125 exception of netbase, which is needed by debootstrap to find
 126 /etc/hosts with the minbase variant.  I really wish there was a way to
 127 set up an Raspberry Pi using only packages in the Debian archive, but
 128 that is not possible as far as I know, because it boots from the GPU
 129 using a non-free binary blob.</p>
 130
 131 <p>The build host need debootstrap, kpartx and qemu-user-static and
 132 probably a few others installed.  I have not checked the complete
 133 build dependency list.</p>
 134
 135 <p>The resulting image will not use the hardware floating point unit
 136 on the Raspberry PI, because the armel architecture in Debian is not
 137 optimized for that use.  So the images created will be a bit slower
 138 than <a href="http://www.raspbian.org/">Raspbian</a> based images.</p>
 139
 140       </div>
 141       <div class="tags">
 142
 143
 144         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/freedombox">freedombox</a>, <a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network</a>.
 145
 146
 147       </div>
 148     </div>
 149     <div class="padding"></div>
 150
 151     <div class="entry">
 152       <div class="title">
 153         <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>
 154       </div>
 155       <div class="date">
 156         26th October 2013
 157       </div>
 158       <div class="body">
 159         <p>De siste måneders eksponering av
 160 <a href="http://www.aftenposten.no/nyheter/uriks/Her-er-Edvard-Snowdens-mest-omtalte-avsloringer-7351734.html">den
 161 totale overvåkningen som foregår i den vestlige verden dokumenterer
 162 hvor sårbare vi er</a>.  Men det slår meg at de som er mest sårbare
 163 for dette, myndighetspersoner på alle nivåer, neppe har innsett at de
 164 selv er de mest interessante personene å lage profiler på, for å kunne
 165 påvirke dem.</p>
 166
 167 <p>For å ta et lite eksempel: Stortingets nettsted,
 168 <a href="http://www.stortinget.no/">www.stortinget.no</a> (og
 169 forsåvidt også
 170 <a href="http://data.stortinget.no/">data.stortinget.no</a>),
 171 inneholder informasjon om det som foregår på Stortinget, og jeg antar
 172 de største brukerne av informasjonen der er representanter og
 173 rådgivere på Stortinget.  Intet overraskende med det.  Det som derimot
 174 er mer skjult er at Stortingets nettsted bruker
 175 <a href="http://en.wikipedia.org/wiki/Google_Analytics">Google
 176 Analytics</a>, hvilket gjør at enhver som besøker nettsidene der også
 177 rapporterer om besøket via Internett-linjer som passerer Sverige,
 178 England og videre til USA.  Det betyr at informasjon om ethvert besøk
 179 på stortingets nettsider kan snappes opp av svensk, britisk og USAs
 180 etterretningsvesen.  De kan dermed holde et øye med hvilke
 181 Stortingssaker stortingsrepresentantene synes er interessante å sjekke
 182 ut, og hvilke sider rådgivere og andre på stortinget synes er
 183 interessant å besøke, når de gjør det og hvilke andre representanter
 184 som sjekker de samme sidene omtrent samtidig.  Stortingets bruk av
 185 Google Analytics gjør det dermed enkelt for utenlands etteretning å
 186 spore representantenes aktivitet og interesse.  Hvis noen av
 187 representantene bruker Google Mail eller noen andre tjenestene som
 188 krever innlogging, så vil det være enda enklere å finne ut nøyaktig
 189 hvilke personer som bruker hvilke nettlesere og dermed knytte
 190 informasjonen opp til enkeltpersoner på Stortinget.</p>
 191
 192 <p>Og jo flere nettsteder som bruker Google Analytics, jo bedre
 193 oversikt over stortingsrepresentantenes lesevaner og interesse blir
 194 tilgjengelig for svensk, britisk og USAs etterretning.  Hva de kan
 195 bruke den informasjonen til overlater jeg til leseren å undres
 196 over.</p>
 197
 198       </div>
 199       <div class="tags">
 200
 201
 202         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>.
 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/A_Raspberry_Pi_based_batman_adv_Mesh_network_node.html">A Raspberry Pi based batman-adv Mesh network node</a>
 212       </div>
 213       <div class="date">
 214         21st October 2013
 215       </div>
 216       <div class="body">
 217         <p>The last few days I have been experimenting with
 218 <a href="http://www.open-mesh.org/projects/batman-adv/wiki">the
 219 batman-adv mesh technology</a>.  I want to gain some experience to see
 220 if it will fit <a href="https://wiki.debian.org/FreedomBox">the
 221 Freedombox project</a>, and together with my neighbors try to build a
 222 mesh network around the park where I live.  Batman-adv is a layer 2
 223 mesh system ("ethernet" in other words), where the mesh network appear
 224 as if all the mesh clients are connected to the same switch.</p>
 225
 226 <p>My hardware of choice was the Linksys WRT54GL routers I had lying
 227 around, but I've been unable to get them working with batman-adv.  So
 228 instead, I started playing with a
 229 <a href="http://www.raspberrypi.org/">Raspberry Pi</a>, and tried to
 230 get it working as a mesh node.  My idea is to use it to create a mesh
 231 node which function as a switch port, where everything connected to
 232 the Raspberry Pi ethernet plug is connected (bridged) to the mesh
 233 network.  This allow me to hook a wifi base station like the Linksys
 234 WRT54GL to the mesh by plugging it into a Raspberry Pi, and allow
 235 non-mesh clients to hook up to the mesh.  This in turn is useful for
 236 Android phones using <a href="http://servalproject.org/">the Serval
 237 Project</a> voip client, allowing every one around the playground to
 238 phone and message each other for free.  The reason is that Android
 239 phones do not see ad-hoc wifi networks (they are filtered away from
 240 the GUI view), and can not join the mesh without being rooted.  But if
 241 they are connected using a normal wifi base station, they can talk to
 242 every client on the local network.</p>
 243
 244 <p>To get this working, I've created a debian package
 245 <a href="https://github.com/petterreinholdtsen/meshfx-node">meshfx-node</a>
 246 and a script
 247 <a href="https://github.com/petterreinholdtsen/meshfx-node/blob/master/build-rpi-mesh-node">build-rpi-mesh-node</a>
 248 to create the Raspberry Pi boot image.  I'm using Debian Jessie (and
 249 not Raspbian), to get more control over the packages available.
 250 Unfortunately a huge binary blob need to be inserted into the boot
 251 image to get it booting, but I'll ignore that for now.  Also, as
 252 Debian lack support for the CPU features available in the Raspberry
 253 Pi, the system do not use the hardware floating point unit.  I hope
 254 the routing performance isn't affected by the lack of hardware FPU
 255 support.</p>
 256
 257 <p>To create an image, run the following with a sudo enabled user
 258 after inserting the target SD card into the build machine:</p>
 259
 260 <p><pre>
 261 % wget -O build-rpi-mesh-node \
 262     https://raw.github.com/petterreinholdtsen/meshfx-node/master/build-rpi-mesh-node
 263 % sudo bash -x ./build-rpi-mesh-node > build.log 2>&1
 264 % dd if=/root/rpi/rpi_basic_jessie_$(date +%Y%m%d).img of=/dev/mmcblk0 bs=1M
 265 %
 266 </pre></p>
 267
 268 <p>Booting with the resulting SD card on a Raspberry PI with a USB
 269 wifi card inserted should give you a mesh node.  At least it does for
 270 me with a the wifi card I am using. The default mesh settings are the
 271 ones used by the Oslo mesh project at Hackeriet, as I mentioned in
 272 <a href="http://people.skolelinux.org/pere/blog/Oslo_community_mesh_network___with_NUUG_and_Hackeriet_at_Hausmania.html">an
 273 earlier blog post about this mesh testing</a>.</p>
 274
 275 <p>The mesh node was not horribly expensive either.  I bought
 276 everything over the counter in shops nearby.  If I had ordered online
 277 from the lowest bidder, the price should be significantly lower:</p>
 278
 279 <p><table>
 280
 281 <tr><th>Supplier</th><th>Model</th><th>NOK</th></tr>
 282 <tr><td>Teknikkmagasinet</td><td>Raspberry Pi model B</td><td>349.90</td></tr>
 283 <tr><td>Teknikkmagasinet</td><td>Raspberry Pi type B case</td><td>99.90</td></tr>
 284 <tr><td>Lefdal</td><td>Jensen Air:Link 25150</td><td>295.-</td></tr>
 285 <tr><td>Clas Ohlson</td><td>Kingston 16 GB SD card</td><td>199.-</td></tr>
 286 <tr><td>Total cost</td><td></td><td>943.80</td></tr>
 287
 288 </table></p>
 289
 290 <p>Now my mesh network at home consist of one laptop in the basement
 291 connected to my production network, one Raspberry Pi node on the 1th
 292 floor that can be seen by my neighbor across the park, and one
 293 play-node I use to develop the image building script.  And some times
 294 I hook up my work horse laptop to the mesh to test it.  I look forward
 295 to figuring out what kind of latency the batman-adv setup will give,
 296 and how much packet loss we will experience around the park. :)</p>
 297
 298       </div>
 299       <div class="tags">
 300
 301
 302         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>.
 303
 304
 305       </div>
 306     </div>
 307     <div class="padding"></div>
 308
 309     <div class="entry">
 310       <div class="title">
 311         <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>
 312       </div>
 313       <div class="date">
 314         19th October 2013
 315       </div>
 316       <div class="body">
 317         <p>Back in 2010, I created a Perl library to talk to
 318 <a href="http://en.wikipedia.org/wiki/Spykee">the Spykee robot</a>
 319 (with two belts, wifi, USB and Linux) and made it available from my
 320 web page.  Today I concluded that it should move to a site that is
 321 easier to use to cooperate with others, and moved it to github.  If
 322 you got a Spykee robot, you might want to check out
 323 <a href="https://github.com/petterreinholdtsen/libspykee-perl">the
 324 libspykee-perl github repository</a>.</p>
 325
 326       </div>
 327       <div class="tags">
 328
 329
 330         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>.
 331
 332
 333       </div>
 334     </div>
 335     <div class="padding"></div>
 336
 337     <div class="entry">
 338       <div class="title">
 339         <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>
 340       </div>
 341       <div class="date">
 342         15th October 2013
 343       </div>
 344       <div class="body">
 345         <p>The last few days I came across a few good causes that should get
 346 wider attention.  I recommend signing and donating to each one of
 347 these. :)</p>
 348
 349 <p>Via <a href="http://www.debian.org/News/weekly/2013/18/">Debian
 350 Project News for 2013-10-14</a> I came across the Outreach Program for
 351 Women program which is a Google Summer of Code like initiative to get
 352 more women involved in free software.  One debian sponsor has offered
 353 to match <a href="http://debian.ch/opw2013">any donation done to Debian
 354 earmarked</a> for this initiative.  I donated a few minutes ago, and
 355 hope you will to. :)</p>
 356
 357 <p>And the Electronic Frontier Foundation just announced plans to
 358 create <a href="https://supporters.eff.org/donate/nsa-videos">video
 359 documentaries about the excessive spying</a> on every Internet user that
 360 take place these days, and their need to fund the work.  I've already
 361 donated.  Are you next?</p>
 362
 363 <p>For my Norwegian audience, the organisation Studentenes og
 364 Akademikernes Internasjonale Hjelpefond is collecting signatures for a
 365 statement under the heading
 366 <a href="http://saih.no/Bloggers_United/">Bloggers United for Open
 367 Access</a> for those of us asking for more focus on open access in the
 368 Norwegian government.  So far 499 signatures.  I hope you will sign it
 369 too.</p>
 370
 371       </div>
 372       <div class="tags">
 373
 374
 375         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>.
 376
 377
 378       </div>
 379     </div>
 380     <div class="padding"></div>
 381
 382     <div class="entry">
 383       <div class="title">
 384         <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>
 385       </div>
 386       <div class="date">
 387         11th October 2013
 388       </div>
 389       <div class="body">
 390         <p>Wireless mesh networks are self organising and self healing
 391 networks that can be used to connect computers across small and large
 392 areas, depending on the radio technology used.  Normal wifi equipment
 393 can be used to create home made radio networks, and there are several
 394 successful examples like
 395 <a href="http://www.freifunk.net/">Freifunk</a> and
 396 <a href="http://www.awmn.net/">Athens Wireless Metropolitan Network</a>
 397 (see
 398 <a href="http://en.wikipedia.org/wiki/List_of_wireless_community_networks_by_region#Greece">wikipedia
 399 for a large list</a>) around the globe.  To give you an idea how it
 400 work, check out the nice overview of the Kiel Freifunk community which
 401 can be seen from their
 402 <a href="http://freifunk.in-kiel.de/ffmap/nodes.html">dynamically
 403 updated node graph and map</a>, where one can see how the mesh nodes
 404 automatically handle routing and recover from nodes disappearing.
 405 There is also a small community mesh network group in Oslo, Norway,
 406 and that is the main topic of this blog post.</p>
 407
 408 <p>I've wanted to check out mesh networks for a while now, and hoped
 409 to do it as part of my involvement with the <a
 410 href="http://www.nuug.no/">NUUG member organisation</a> community, and
 411 my recent involvement in
 412 <a href="https://wiki.debian.org/FreedomBox">the Freedombox project</a>
 413 finally lead me to give mesh networks some priority, as I suspect a
 414 Freedombox should use mesh networks to connect neighbours and family
 415 when possible, given that most communication between people are
 416 between those nearby (as shown for example by research on Facebook
 417 communication patterns).  It also allow people to communicate without
 418 any central hub to tap into for those that want to listen in on the
 419 private communication of citizens, which have become more and more
 420 important over the years.</p>
 421
 422 <p>So far I have only been able to find one group of people in Oslo
 423 working on community mesh networks, over at the hack space
 424 <a href="http://hackeriet.no/">Hackeriet</a> at Husmania.  They seem to
 425 have started with some Freifunk based effort using OLSR, called
 426 <a href="http://oslo.freifunk.net/index.php?title=Main_Page">the Oslo
 427 Freifunk project</a>, but that effort is now dead and the people
 428 behind it have moved on to a batman-adv based system called
 429 <a href="http://meshfx.org/trac">meshfx</a>.  Unfortunately the wiki
 430 site for the Oslo Freifunk project is no longer possible to update to
 431 reflect this fact, so the old project page can't be updated to point to
 432 the new project.  A while back, the people at Hackeriet invited people
 433 from the Freifunk community to Oslo to talk about mesh networks.  I
 434 came across this video where Hans Jørgen Lysglimt interview the
 435 speakers about this talk (from
 436 <a href="https://www.youtube.com/watch?v=N2Kd7CLkhSY">youtube</a>):</p>
 437
 438 <p><iframe width="420" height="315" src="https://www.youtube.com/embed/N2Kd7CLkhSY" frameborder="0" allowfullscreen></iframe></p>
 439
 440 <p>I mentioned OLSR and batman-adv, which are mesh routing protocols.
 441 There are heaps of different protocols, and I am still struggling to
 442 figure out which one would be "best" for some definitions of best, but
 443 given that the community mesh group in Oslo is so small, I believe it
 444 is best to hook up with the existing one instead of trying to create a
 445 completely different setup, and thus I have decided to focus on
 446 batman-adv for now.  It sure help me to  know that the very cool
 447 <a href="http://www.servalproject.org/">Serval project in Australia</a>
 448 is using batman-adv as their meshing technology when it create a self
 449 organizing and self healing telephony system for disaster areas and
 450 less industrialized communities.  Check out this cool video presenting
 451 that project (from
 452 <a href="https://www.youtube.com/watch?v=30qNfzJCQOA">youtube</a>):</p>
 453
 454 <p><iframe width="560" height="315" src="https://www.youtube.com/embed/30qNfzJCQOA" frameborder="0" allowfullscreen></iframe></p>
 455
 456 <p>According to the wikipedia page on
 457 <a href="http://en.wikipedia.org/wiki/Wireless_mesh_network">Wireless
 458 mesh network</a> there are around 70 competing schemes for routing
 459 packets across mesh networks, and OLSR, B.A.T.M.A.N. and
 460 B.A.T.M.A.N. advanced are protocols used by several free software
 461 based community mesh networks.</p>
 462
 463 <p>The batman-adv protocol is a bit special, as it provide layer 2
 464 (as in ethernet ) routing, allowing ipv4 and ipv6 to work on the same
 465 network.  One way to think about it is that it provide a mesh based
 466 vlan you can bridge to or handle like any other vlan connected to your
 467 computer.  The required drivers are already in the Linux kernel at
 468 least since Debian Wheezy, and it is fairly easy to set up.  A
 469 <a href="http://www.open-mesh.org/projects/batman-adv/wiki/Quick-start-guide">good
 470 introduction</a> is available from the Open Mesh project.  These are
 471 the key settings needed to join the Oslo meshfx network:</p>
 472
 473 <p><table>
 474 <tr><th>Setting</th><th>Value</th></tr>
 475 <tr><td>Protocol / kernel module</td><td>batman-adv</td></tr>
 476 <tr><td>ESSID</td><td>meshfx@hackeriet</td></tr>
 477 <td>Channel / Frequency</td><td>11 / 2462</td></tr>
 478 <td>Cell ID</td><td>02:BA:00:00:00:01</td>
 479 </table></p>
 480
 481 <p>The reason for setting ad-hoc wifi Cell ID is to work around bugs
 482 in firmware used in wifi card and wifi drivers.  (See a nice post from
 483 VillageTelco about
 484 "<a href="http://tiebing.blogspot.no/2009/12/ad-hoc-cell-splitting-re-post-original.html">Information
 485 about cell-id splitting, stuck beacons, and failed IBSS merges!</a>
 486 for details.)  When these settings are activated and you have some
 487 other mesh node nearby, your computer will be connected to the mesh
 488 network and can communicate with any mesh node that is connected to
 489 any of the nodes in your network of nodes. :)</p>
 490
 491 <p>My initial plan was to reuse my old Linksys WRT54GL as a mesh node,
 492 but that seem to be very hard, as I have not been able to locate a
 493 firmware supporting batman-adv.  If anyone know how to use that old
 494 wifi access point with batman-adv these days, please let me know.</p>
 495
 496 <p>If you find this project interesting and want to join, please join
 497 us on IRC, either channel
 498 <a href="irc://irc.freenode.net/#oslohackerspace">#oslohackerspace</a>
 499 or <a href="irc://irc.freenode.net/#nuug">#nuug</a> on
 500 irc.freenode.net.</p>
 501
 502 <p>While investigating mesh networks in Oslo, I came across an old
 503 research paper from the university of Stavanger and Telenor Research
 504 and Innovation called
 505 <a href="http://folk.uio.no/paalee/publications/netrel-egeland-iswcs-2008.pdf">The
 506 reliability of wireless backhaul mesh networks</a> and elsewhere
 507 learned that Telenor have been experimenting with mesh networks at
 508 Grünerløkka in Oslo.  So mesh networks are also interesting for
 509 commercial companies, even though Telenor discovered that it was hard
 510 to figure out a good business plan for mesh networking and as far as I
 511 know have closed down the experiment.  Perhaps Telenor or others would
 512 be interested in a cooperation?</p>
 513
 514 <p><strong>Update 2013-10-12</strong>: I was just
 515 <a href="http://lists.alioth.debian.org/pipermail/freedombox-discuss/2013-October/005900.html">told
 516 by the Serval project developers</a> that they no longer use
 517 batman-adv (but are compatible with it), but their own crypto based
 518 mesh system.</p>
 519
 520       </div>
 521       <div class="tags">
 522
 523
 524         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>.
 525
 526
 527       </div>
 528     </div>
 529     <div class="padding"></div>
 530
 531     <div class="entry">
 532       <div class="title">
 533         <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>
 534       </div>
 535       <div class="date">
 536          8th October 2013
 537       </div>
 538       <div class="body">
 539         <p>The other day I was pleased and surprised to discover that Marcelo
 540 Salvador had published a
 541 <a href="https://www.youtube.com/watch?v=w-GgpdqgLFc">video on
 542 Youtube</a> showing how to install the standalone Debian Edu /
 543 Skolelinux profile.  This is the profile intended for use at home or
 544 on laptops that should not be integrated into the provided network
 545 services (no central home directory, no Kerberos / LDAP directory etc,
 546 in other word a single user machine).  The result is 11 minutes long,
 547 and show some user applications (seem to be rather randomly picked).
 548 Missed a few of my favorites like celestia, planets and chromium
 549 showing the <a href="http://www.zygotebody.com/">Zygote Body 3D model
 550 of the human body</a>, but I guess he did not know about those or find
 551 other programs more interesting. :) And the video do not show the
 552 advantages I believe is one of the most valuable featuers in Debian
 553 Edu, its central school server making it possible to run hundreds of
 554 computers without hard drives by installing one central
 555 <a href="http://www.ltsp.org/">LTSP server</a>.</p>
 556
 557 <p>Anyway, check out the video, embedded below and linked to above:</p>
 558
 559 <iframe width="420" height="315" src="http://www.youtube.com/embed/w-GgpdqgLFc" frameborder="0" allowfullscreen></iframe>
 560
 561 <p>Are there other nice videos demonstrating Skolelinux?  Please let
 562 me know. :)</p>
 563
 564       </div>
 565       <div class="tags">
 566
 567
 568         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>.
 569
 570
 571       </div>
 572     </div>
 573     <div class="padding"></div>
 574
 575     <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>
 576     <div id="sidebar">
 577
 578
 579
 580 <h2>Archive</h2>
 581 <ul>
 582
 583 <li>2021
 584 <ul>
 585
 586 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/01/">January (2)</a></li>
 587
 588 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/02/">February (1)</a></li>
 589
 590 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/05/">May (1)</a></li>
 591
 592 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/06/">June (1)</a></li>
 593
 594 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/07/">July (3)</a></li>
 595
 596 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/08/">August (1)</a></li>
 597
 598 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/09/">September (1)</a></li>
 599
 600 </ul></li>
 601
 602 <li>2020
 603 <ul>
 604
 605 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
 606
 607 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
 608
 609 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/04/">April (2)</a></li>
 610
 611 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/05/">May (3)</a></li>
 612
 613 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/06/">June (2)</a></li>
 614
 615 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/07/">July (1)</a></li>
 616
 617 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/09/">September (1)</a></li>
 618
 619 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/10/">October (1)</a></li>
 620
 621 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/11/">November (1)</a></li>
 622
 623 </ul></li>
 624
 625 <li>2019
 626 <ul>
 627
 628 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
 629
 630 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
 631
 632 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
 633
 634 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
 635
 636 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
 637
 638 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
 639
 640 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
 641
 642 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
 643
 644 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
 645
 646 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
 647
 648 </ul></li>
 649
 650 <li>2018
 651 <ul>
 652
 653 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 654
 655 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 656
 657 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 658
 659 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 660
 661 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 662
 663 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 664
 665 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 666
 667 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 668
 669 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 670
 671 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 672
 673 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
 674
 675 </ul></li>
 676
 677 <li>2017
 678 <ul>
 679
 680 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 681
 682 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 683
 684 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 685
 686 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 687
 688 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 689
 690 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 691
 692 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 693
 694 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 695
 696 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 697
 698 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 699
 700 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 701
 702 </ul></li>
 703
 704 <li>2016
 705 <ul>
 706
 707 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 708
 709 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 710
 711 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 712
 713 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 714
 715 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 716
 717 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 718
 719 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 720
 721 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 722
 723 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 724
 725 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 726
 727 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 728
 729 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 730
 731 </ul></li>
 732
 733 <li>2015
 734 <ul>
 735
 736 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 737
 738 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 739
 740 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 741
 742 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 743
 744 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 745
 746 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 747
 748 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 749
 750 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 751
 752 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 753
 754 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 755
 756 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 757
 758 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 759
 760 </ul></li>
 761
 762 <li>2014
 763 <ul>
 764
 765 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 766
 767 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 768
 769 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 770
 771 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 772
 773 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 774
 775 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 776
 777 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 778
 779 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 780
 781 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 782
 783 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 784
 785 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 786
 787 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 788
 789 </ul></li>
 790
 791 <li>2013
 792 <ul>
 793
 794 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 795
 796 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 797
 798 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 799
 800 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 801
 802 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 803
 804 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 805
 806 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 807
 808 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 809
 810 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 811
 812 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 813
 814 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 815
 816 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 817
 818 </ul></li>
 819
 820 <li>2012
 821 <ul>
 822
 823 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 824
 825 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 826
 827 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 828
 829 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 830
 831 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 832
 833 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 834
 835 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 836
 837 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 838
 839 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 840
 841 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 842
 843 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 844
 845 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 846
 847 </ul></li>
 848
 849 <li>2011
 850 <ul>
 851
 852 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 853
 854 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 855
 856 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 857
 858 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 859
 860 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 861
 862 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 863
 864 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 865
 866 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 867
 868 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 869
 870 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 871
 872 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 873
 874 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 875
 876 </ul></li>
 877
 878 <li>2010
 879 <ul>
 880
 881 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 882
 883 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 884
 885 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 886
 887 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 888
 889 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 890
 891 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 892
 893 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 894
 895 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 896
 897 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 898
 899 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 900
 901 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 902
 903 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 904
 905 </ul></li>
 906
 907 <li>2009
 908 <ul>
 909
 910 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 911
 912 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 913
 914 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 915
 916 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 917
 918 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 919
 920 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 921
 922 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 923
 924 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 925
 926 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 927
 928 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 929
 930 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 931
 932 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 933
 934 </ul></li>
 935
 936 <li>2008
 937 <ul>
 938
 939 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 940
 941 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 942
 943 </ul></li>
 944
 945 </ul>
 946
 947
 948
 949 <h2>Tags</h2>
 950 <ul>
 951
 952  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (16)</a></li>
 953
 954  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 955
 956  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 957
 958  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 959
 960  <li><a href="http://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (9)</a></li>
 961
 962  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (12)</a></li>
 963
 964  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
 965
 966  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 967
 968  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 969
 970  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (176)</a></li>
 971
 972  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (159)</a></li>
 973
 974  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (8)</a></li>
 975
 976  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
 977
 978  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (18)</a></li>
 979
 980  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (29)</a></li>
 981
 982  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 983
 984  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (427)</a></li>
 985
 986  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 987
 988  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
 989
 990  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
 991
 992  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 993
 994  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
 995
 996  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 997
 998  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (43)</a></li>
 999
1000  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
1001
1002  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (23)</a></li>
1003
1004  <li><a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi (4)</a></li>
1005
1006  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1007
1008  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
1009
1010  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1011
1012  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1013
1014  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1015
1016  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1017
1018  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (42)</a></li>
1019
1020  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (13)</a></li>
1021
1022  <li><a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5 (23)</a></li>
1023
1024  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (319)</a></li>
1025
1026  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (198)</a></li>
1027
1028  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (40)</a></li>
1029
1030  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1031
1032  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (75)</a></li>
1033
1034  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (113)</a></li>
1035
1036  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
1037
1038  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1039
1040  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1041
1042  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1043
1044  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (12)</a></li>
1045
1046  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1047
1048  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
1049
1050  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1051
1052  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (59)</a></li>
1053
1054  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1055
1056  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1057
1058  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (71)</a></li>
1059
1060  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
1061
1062  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (14)</a></li>
1063
1064  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (61)</a></li>
1065
1066  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (5)</a></li>
1067
1068  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1069
1070  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1071
1072  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (19)</a></li>
1073
1074  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (75)</a></li>
1075
1076  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1077
1078  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
1079
1080 </ul>
1081
1082
1083     </div>
1084     <p style="text-align: right">
1085  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1086 </p>
1087
1088   </body>
1089 </html>