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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 April 2014.</h3>
  23
  24     <div class="entry">
  25       <div class="title">
  26         <a href="http://people.skolelinux.org/pere/blog/S3QL__a_locally_mounted_cloud_file_system___nice_free_software.html">S3QL, a locally mounted cloud file system - nice free software</a>
  27       </div>
  28       <div class="date">
  29          9th April 2014
  30       </div>
  31       <div class="body">
  32         <p>For a while now, I have been looking for a sensible offsite backup
  33 solution for use at home.  My requirements are simple, it must be
  34 cheap and locally encrypted (in other words, I keep the encryption
  35 keys, the storage provider do not have access to my private files).
  36 One idea me and my friends had many years ago, before the cloud
  37 storage providers showed up, was to use Google mail as storage,
  38 writing a Linux block device storing blocks as emails in the mail
  39 service provided by Google, and thus get heaps of free space.  On top
  40 of this one can add encryption, RAID and volume management to have
  41 lots of (fairly slow, I admit that) cheap and encrypted storage.  But
  42 I never found time to implement such system.  But the last few weeks I
  43 have looked at a system called
  44 <a href="https://bitbucket.org/nikratio/s3ql/">S3QL</a>, a locally
  45 mounted network backed file system with the features I need.</p>
  46
  47 <p>S3QL is a fuse file system with a local cache and cloud storage,
  48 handling several different storage providers, any with Amazon S3,
  49 Google Drive or OpenStack API.  There are heaps of such storage
  50 providers.  S3QL can also use a local directory as storage, which
  51 combined with sshfs allow for file storage on any ssh server.  S3QL
  52 include support for encryption, compression, de-duplication, snapshots
  53 and immutable file systems, allowing me to mount the remote storage as
  54 a local mount point, look at and use the files as if they were local,
  55 while the content is stored in the cloud as well.  This allow me to
  56 have a backup that should survive fire.  The file system can not be
  57 shared between several machines at the same time, as only one can
  58 mount it at the time, but any machine with the encryption key and
  59 access to the storage service can mount it if it is unmounted.</p>
  60
  61 <p>It is simple to use.  I'm using it on Debian Wheezy, where the
  62 package is included already.  So to get started, run <tt>apt-get
  63 install s3ql</tt>.  Next, pick a storage provider.  I ended up picking
  64 Greenqloud, after reading their nice recipe on
  65 <a href="https://greenqloud.zendesk.com/entries/44611757-How-To-Use-S3QL-to-mount-a-StorageQloud-bucket-on-Debian-Wheezy">how
  66 to use S3QL with their Amazon S3 service</a>, because I trust the laws
  67 in Iceland more than those in USA when it come to keeping my personal
  68 data safe and private, and thus would rather spend money on a company
  69 in Iceland.  Another nice recipe is available from the article
  70 <a href="http://www.admin-magazine.com/HPC/Articles/HPC-Cloud-Storage">S3QL
  71 Filesystem for HPC Storage</a> by Jeff Layton in the HPC section of
  72 Admin magazine.  When the provider is picked, figure out how to get
  73 the API key needed to connect to the storage API.  With Greencloud,
  74 the key did not show up until I had added payment details to my
  75 account.</p>
  76
  77 <p>Armed with the API access details, it is time to create the file
  78 system.  First, create a new bucket in the cloud.  This bucket is the
  79 file system storage area.  I picked a bucket name reflecting the
  80 machine that was going to store data there, but any name will do.
  81 I'll refer to it as <tt>bucket-name</tt> below.  In addition, one need
  82 the API login and password, and a locally created password.  Store it
  83 all in ~root/.s3ql/authinfo2 like this:
  84
  85 <p><blockquote><pre>
  86 [s3c]
  87 storage-url: s3c://s.greenqloud.com:443/bucket-name
  88 backend-login: API-login
  89 backend-password: API-password
  90 fs-passphrase: local-password
  91 </pre></blockquote></p>
  92
  93 <p>I create my local passphrase using <tt>pwget 50</tt> or similar,
  94 but any sensible way to create a fairly random password should do it.
  95 Armed with these details, it is now time to run mkfs, entering the API
  96 details and password to create it:</p>
  97
  98 <p><blockquote><pre>
  99 # mkdir -m 700 /var/lib/s3ql-cache
 100 # mkfs.s3ql --cachedir /var/lib/s3ql-cache --authfile /root/.s3ql/authinfo2 \
 101   --ssl s3c://s.greenqloud.com:443/bucket-name
 102 Enter backend login:
 103 Enter backend password:
 104 Before using S3QL, make sure to read the user's guide, especially
 105 the 'Important Rules to Avoid Loosing Data' section.
 106 Enter encryption password:
 107 Confirm encryption password:
 108 Generating random encryption key...
 109 Creating metadata tables...
 110 Dumping metadata...
 111 ..objects..
 112 ..blocks..
 113 ..inodes..
 114 ..inode_blocks..
 115 ..symlink_targets..
 116 ..names..
 117 ..contents..
 118 ..ext_attributes..
 119 Compressing and uploading metadata...
 120 Wrote 0.00 MB of compressed metadata.
 121 # </pre></blockquote></p>
 122
 123 <p>The next step is mounting the file system to make the storage available.
 124
 125 <p><blockquote><pre>
 126 # mount.s3ql --cachedir /var/lib/s3ql-cache --authfile /root/.s3ql/authinfo2 \
 127   --ssl --allow-root s3c://s.greenqloud.com:443/bucket-name /s3ql
 128 Using 4 upload threads.
 129 Downloading and decompressing metadata...
 130 Reading metadata...
 131 ..objects..
 132 ..blocks..
 133 ..inodes..
 134 ..inode_blocks..
 135 ..symlink_targets..
 136 ..names..
 137 ..contents..
 138 ..ext_attributes..
 139 Mounting filesystem...
 140 # df -h /s3ql
 141 Filesystem                              Size  Used Avail Use% Mounted on
 142 s3c://s.greenqloud.com:443/bucket-name  1.0T     0  1.0T   0% /s3ql
 143 #
 144 </pre></blockquote></p>
 145
 146 <p>The file system is now ready for use.  I use rsync to store my
 147 backups in it, and as the metadata used by rsync is downloaded at
 148 mount time, no network traffic (and storage cost) is triggered by
 149 running rsync.  To unmount, one should not use the normal umount
 150 command, as this will not flush the cache to the cloud storage, but
 151 instead running the umount.s3ql command like this:
 152
 153 <p><blockquote><pre>
 154 # umount.s3ql /s3ql
 155 #
 156 </pre></blockquote></p>
 157
 158 <p>There is a fsck command available to check the file system and
 159 correct any problems detected.  This can be used if the local server
 160 crashes while the file system is mounted, to reset the "already
 161 mounted" flag.  This is what it look like when processing a working
 162 file system:</p>
 163
 164 <p><blockquote><pre>
 165 # fsck.s3ql --force --ssl s3c://s.greenqloud.com:443/bucket-name
 166 Using cached metadata.
 167 File system seems clean, checking anyway.
 168 Checking DB integrity...
 169 Creating temporary extra indices...
 170 Checking lost+found...
 171 Checking cached objects...
 172 Checking names (refcounts)...
 173 Checking contents (names)...
 174 Checking contents (inodes)...
 175 Checking contents (parent inodes)...
 176 Checking objects (reference counts)...
 177 Checking objects (backend)...
 178 ..processed 5000 objects so far..
 179 ..processed 10000 objects so far..
 180 ..processed 15000 objects so far..
 181 Checking objects (sizes)...
 182 Checking blocks (referenced objects)...
 183 Checking blocks (refcounts)...
 184 Checking inode-block mapping (blocks)...
 185 Checking inode-block mapping (inodes)...
 186 Checking inodes (refcounts)...
 187 Checking inodes (sizes)...
 188 Checking extended attributes (names)...
 189 Checking extended attributes (inodes)...
 190 Checking symlinks (inodes)...
 191 Checking directory reachability...
 192 Checking unix conventions...
 193 Checking referential integrity...
 194 Dropping temporary indices...
 195 Backing up old metadata...
 196 Dumping metadata...
 197 ..objects..
 198 ..blocks..
 199 ..inodes..
 200 ..inode_blocks..
 201 ..symlink_targets..
 202 ..names..
 203 ..contents..
 204 ..ext_attributes..
 205 Compressing and uploading metadata...
 206 Wrote 0.89 MB of compressed metadata.
 207 #
 208 </pre></blockquote></p>
 209
 210 <p>Thanks to the cache, working on files that fit in the cache is very
 211 quick, about the same speed as local file access.  Uploading large
 212 amount of data is to me limited by the bandwidth out of and into my
 213 house.  Uploading 685 MiB with a 100 MiB cache gave me 305 kiB/s,
 214 which is very close to my upload speed, and downloading the same
 215 Debian installation ISO gave me 610 kiB/s, close to my download speed.
 216 Both were measured using <tt>dd</tt>.  So for me, the bottleneck is my
 217 network, not the file system code.  I do not know what a good cache
 218 size would be, but suspect that the cache should e larger than your
 219 working set.</p>
 220
 221 <p>I mentioned that only one machine can mount the file system at the
 222 time.  If another machine try, it is told that the file system is
 223 busy:</p>
 224
 225 <p><blockquote><pre>
 226 # mount.s3ql --cachedir /var/lib/s3ql-cache --authfile /root/.s3ql/authinfo2 \
 227   --ssl --allow-root s3c://s.greenqloud.com:443/bucket-name /s3ql
 228 Using 8 upload threads.
 229 Backend reports that fs is still mounted elsewhere, aborting.
 230 #
 231 </pre></blockquote></p>
 232
 233 <p>The file content is uploaded when the cache is full, while the
 234 metadata is uploaded once every 24 hour by default.  To ensure the
 235 file system content is flushed to the cloud, one can either umount the
 236 file system, or ask S3QL to flush the cache and metadata using
 237 s3qlctrl:
 238
 239 <p><blockquote><pre>
 240 # s3qlctrl upload-meta /s3ql
 241 # s3qlctrl flushcache /s3ql
 242 #
 243 </pre></blockquote></p>
 244
 245 <p>If you are curious about how much space your data uses in the
 246 cloud, and how much compression and deduplication cut down on the
 247 storage usage, you can use s3qlstat on the mounted file system to get
 248 a report:</p>
 249
 250 <p><blockquote><pre>
 251 # s3qlstat /s3ql
 252 Directory entries:    9141
 253 Inodes:               9143
 254 Data blocks:          8851
 255 Total data size:      22049.38 MB
 256 After de-duplication: 21955.46 MB (99.57% of total)
 257 After compression:    21877.28 MB (99.22% of total, 99.64% of de-duplicated)
 258 Database size:        2.39 MB (uncompressed)
 259 (some values do not take into account not-yet-uploaded dirty blocks in cache)
 260 #
 261 </pre></blockquote></p>
 262
 263 <p>I mentioned earlier that there are several possible suppliers of
 264 storage.  I did not try to locate them all, but am aware of at least
 265 <a href="https://www.greenqloud.com/">Greenqloud</a>,
 266 <a href="http://drive.google.com/">Google Drive</a>,
 267 <a href="http://aws.amazon.com/s3/">Amazon S3 web serivces</a>,
 268 <a href="http://www.rackspace.com/">Rackspace</a> and
 269 <a href="http://crowncloud.net/">Crowncloud</A>.  The latter even
 270 accept payment in Bitcoin.  Pick one that suit your need.  Some of
 271 them provide several GiB of free storage, but the prize models are
 272 quite different and you will have to figure out what suits you
 273 best.</p>
 274
 275 <p>While researching this blog post, I had a look at research papers
 276 and posters discussing the S3QL file system.  There are several, which
 277 told me that the file system is getting a critical check by the
 278 science community and increased my confidence in using it.  One nice
 279 poster is titled
 280 "<a href="http://www.lanl.gov/orgs/adtsc/publications/science_highlights_2013/docs/pg68_69.pdf">An
 281 Innovative Parallel Cloud Storage System using OpenStack’s SwiftObject
 282 Store and Transformative Parallel I/O Approach</a>" by Hsing-Bung
 283 Chen, Benjamin McClelland, David Sherrill, Alfred Torrez, Parks Fields
 284 and Pamela Smith.  Please  have a look.</p>
 285
 286 <p>Given my problems with different file systems earlier, I decided to
 287 check out the mounted S3QL file system to see if it would be usable as
 288 a home directory (in other word, that it provided POSIX semantics when
 289 it come to locking and umask handling etc).  Running
 290 <a href="http://people.skolelinux.org/pere/blog/Testing_if_a_file_system_can_be_used_for_home_directories___.html">my
 291 test code to check file system semantics</a>, I was happy to discover that
 292 no error was found.  So the file system can be used for home
 293 directories, if one chooses to do so.</p>
 294
 295 <p>If you do not want a locally file system, and want something that
 296 work without the Linux fuse file system, I would like to mention the
 297 <a href="http://www.tarsnap.com/">Tarsnap service</a>, which also
 298 provide locally encrypted backup using a command line client.  It have
 299 a nicer access control system, where one can split out read and write
 300 access, allowing some systems to write to the backup and others to
 301 only read from it.</p>
 302
 303 <p>As usual, if you use Bitcoin and want to show your support of my
 304 activities, please send Bitcoin donations to my address
 305 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&label=PetterReinholdtsenBlog">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 306
 307       </div>
 308       <div class="tags">
 309
 310
 311         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>.
 312
 313
 314       </div>
 315     </div>
 316     <div class="padding"></div>
 317
 318     <div class="entry">
 319       <div class="title">
 320         <a href="http://people.skolelinux.org/pere/blog/EU_domstolen_bekreftet_i_dag_at_datalagringsdirektivet_er_ulovlig.html">EU-domstolen bekreftet i dag at datalagringsdirektivet er ulovlig</a>
 321       </div>
 322       <div class="date">
 323          8th April 2014
 324       </div>
 325       <div class="body">
 326         <p>I dag kom endelig avgjørelsen fra EU-domstolen om
 327 datalagringsdirektivet, som ikke overraskende ble dømt ulovlig og i
 328 strid med borgernes grunnleggende rettigheter.  Hvis du lurer på hva
 329 datalagringsdirektivet er for noe, så er det
 330 <a href="http://tv.nrk.no/program/koid75005313/tema-dine-digitale-spor-datalagringsdirektivet">en
 331 flott dokumentar tilgjengelig hos NRK</a> som jeg tidligere
 332 <a href="http://people.skolelinux.org/pere/blog/Dokumentaren_om_Datalagringsdirektivet_sendes_endelig_p__NRK.html">har
 333 anbefalt</a> alle å se.</p>
 334
 335 <p>Her er et liten knippe nyhetsoppslag om saken, og jeg regner med at
 336 det kommer flere ut over dagen.  Flere kan finnes
 337 <a href="http://www.mylder.no/?drill=datalagringsdirektivet&intern=1">via
 338 mylder</a>.</p>
 339
 340 <p><ul>
 341
 342 <li><a href="http://e24.no/digital/eu-domstolen-datalagringsdirektivet-er-ugyldig/22879592">EU-domstolen:
 343 Datalagringsdirektivet er ugyldig</a> - e24.no 2014-04-08
 344
 345 <li><a href="http://www.aftenposten.no/nyheter/iriks/EU-domstolen-Datalagringsdirektivet-er-ulovlig-7529032.html">EU-domstolen:
 346 Datalagringsdirektivet er ulovlig</a> - aftenposten.no 2014-04-08
 347
 348 <li><a href="http://www.aftenposten.no/nyheter/iriks/politikk/Krever-DLD-stopp-i-Norge-7530086.html">Krever
 349 DLD-stopp i Norge</a> - aftenposten.no 2014-04-08
 350
 351 <li><a href="http://www.p4.no/story.aspx?id=566431">Apenes: - En
 352 gledens dag</a> - p4.no 2014-04-08
 353
 354 <li><a href="http://www.nrk.no/norge/_-datalagringsdirektivet-er-ugyldig-1.11655929">EU-domstolen:
 355 – Datalagringsdirektivet er ugyldig</a> - nrk.no 2014-04-08</li>
 356
 357 <li><a href="http://www.vg.no/nyheter/utenriks/data-og-nett/eu-domstolen-datalagringsdirektivet-er-ugyldig/a/10130280/">EU-domstolen:
 358 Datalagringsdirektivet er ugyldig</a> - vg.no 2014-04-08</li>
 359
 360 <li><a href="http://www.dagbladet.no/2014/04/08/nyheter/innenriks/datalagringsdirektivet/personvern/32711646/">-
 361 Vi bør skrote hele datalagringsdirektivet</a> - dagbladet.no
 362 2014-04-08</li>
 363
 364 <li><a href="http://www.digi.no/928137/eu-domstolen-dld-er-ugyldig">EU-domstolen:
 365 DLD er ugyldig</a> - digi.no 2014-04-08</li>
 366
 367 <li><a href="http://www.irishtimes.com/business/sectors/technology/european-court-declares-data-retention-directive-invalid-1.1754150">European
 368 court declares data retention directive invalid</a> - irishtimes.com
 369 2014-04-08</li>
 370
 371 <li><a href="http://www.reuters.com/article/2014/04/08/us-eu-data-ruling-idUSBREA370F020140408?feedType=RSS">EU
 372 court rules against requirement to keep data of telecom users</a> -
 373 reuters.com 2014-04-08</li>
 374
 375 </ul>
 376 </p>
 377
 378 <p>Jeg synes det er veldig fint at nok en stemme slår fast at
 379 totalitær overvåkning av befolkningen er uakseptabelt, men det er
 380 fortsatt like viktig å beskytte privatsfæren som før, da de
 381 teknologiske mulighetene fortsatt finnes og utnyttes, og jeg tror
 382 innsats i prosjekter som
 383 <a href="https://wiki.debian.org/FreedomBox">Freedombox</a> og
 384 <a href="http://www.dugnadsnett.no/">Dugnadsnett</a> er viktigere enn
 385 noen gang.</p>
 386
 387 <p><strong>Update 2014-04-08 12:10</strong>: Kronerullingen for å
 388 stoppe datalagringsdirektivet i Norge gjøres hos foreningen
 389 <a href="http://www.digitaltpersonvern.no/">Digitalt Personvern</a>,
 390 som har samlet inn 843 215,- så langt men trenger nok mye mer hvis
 391
 392 ikke Høyre og Arbeiderpartiet bytter mening i saken.  Det var
 393 <a href="http://www.holderdeord.no/parliament-issues/48650">kun
 394 partinene Høyre og Arbeiderpartiet</a> som stemte for
 395 Datalagringsdirektivet, og en av dem må bytte mening for at det skal
 396 bli flertall mot i Stortinget.  Se mer om saken
 397 <a href="http://www.holderdeord.no/issues/69-innfore-datalagringsdirektivet">Holder
 398 de ord</a>.</p>
 399
 400       </div>
 401       <div class="tags">
 402
 403
 404         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/dld">dld</a>, <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
 405
 406
 407       </div>
 408     </div>
 409     <div class="padding"></div>
 410
 411     <div class="entry">
 412       <div class="title">
 413         <a href="http://people.skolelinux.org/pere/blog/ReactOS_Windows_clone___nice_free_software.html">ReactOS Windows clone - nice free software</a>
 414       </div>
 415       <div class="date">
 416          1st April 2014
 417       </div>
 418       <div class="body">
 419         <p>Microsoft have announced that Windows XP reaches its end of life
 420 2014-04-08, in 7 days.  But there are heaps of machines still running
 421 Windows XP, and depending on Windows XP to run their applications, and
 422 upgrading will be expensive, both when it comes to money and when it
 423 comes to the amount of effort needed to migrate from Windows XP to a
 424 new operating system.  Some obvious options (buy new a Windows
 425 machine, buy a MacOSX machine, install Linux on the existing machine)
 426 are already well known and covered elsewhere.  Most of them involve
 427 leaving the user applications installed on Windows XP behind and
 428 trying out replacements or updated versions. In this blog post I want
 429 to mention one strange bird that allow people to keep the hardware and
 430 the existing Windows XP applications and run them on a free software
 431 operating system that is Windows XP compatible.</p>
 432
 433 <p><a href="http://www.reactos.org/">ReactOS</a> is a free software
 434 operating system (GNU GPL licensed) working on providing a operating
 435 system that is binary compatible with Windows, able to run windows
 436 programs directly and to use Windows drivers for hardware directly.
 437 The project goal is for Windows user to keep their existing machines,
 438 drivers and software, and gain the advantages from user a operating
 439 system without usage limitations caused by non-free licensing.  It is
 440 a Windows clone running directly on the hardware, so quite different
 441 from the approach taken by <a href="http://www.winehq.org/">the Wine
 442 project</a>, which make it possible to run Windows binaries on
 443 Linux.</p>
 444
 445 <p>The ReactOS project share code with the Wine project, so most
 446 shared libraries available on Windows are already implemented already.
 447 There is also a software manager like the one we are used to on Linux,
 448 allowing the user to install free software applications with a simple
 449 click directly from the Internet.  Check out the
 450 <a href="http://www.reactos.org/screenshots">screen shots on the
 451 project web site</a> for an idea what it look like (it looks just like
 452 Windows before metro).</p>
 453
 454 <p>I do not use ReactOS myself, preferring Linux and Unix like
 455 operating systems.  I've tested it, and it work fine in a virt-manager
 456 virtual machine.  The browser, minesweeper, notepad etc is working
 457 fine as far as I can tell.  Unfortunately, my main test application
 458 is the software included on a CD with the Lego Mindstorms NXT, which
 459 seem to install just fine from CD but fail to leave any binaries on
 460 the disk after the installation.  So no luck with that test software.
 461 No idea why, but hope someone else figure out and fix the problem.
 462 I've tried the ReactOS Live ISO on a physical machine, and it seemed
 463 to work just fine.  If you like Windows and want to keep running your
 464 old Windows binaries, check it out by
 465 <a href="http://www.reactos.org/download">downloading</a> the
 466 installation CD, the live CD or the preinstalled virtual machine
 467 image.</p>
 468
 469       </div>
 470       <div class="tags">
 471
 472
 473         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos</a>.
 474
 475
 476       </div>
 477     </div>
 478     <div class="padding"></div>
 479
 480     <p style="text-align: right;"><a href="04.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
 481     <div id="sidebar">
 482
 483
 484
 485 <h2>Archive</h2>
 486 <ul>
 487
 488 <li>2014
 489 <ul>
 490
 491 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 492
 493 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 494
 495 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 496
 497 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (3)</a></li>
 498
 499 </ul></li>
 500
 501 <li>2013
 502 <ul>
 503
 504 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 505
 506 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 507
 508 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 509
 510 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 511
 512 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 513
 514 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 515
 516 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 517
 518 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 519
 520 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 521
 522 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 523
 524 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 525
 526 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 527
 528 </ul></li>
 529
 530 <li>2012
 531 <ul>
 532
 533 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 534
 535 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 536
 537 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 538
 539 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 540
 541 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 542
 543 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 544
 545 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 546
 547 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 548
 549 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 550
 551 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 552
 553 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 554
 555 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 556
 557 </ul></li>
 558
 559 <li>2011
 560 <ul>
 561
 562 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 563
 564 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 565
 566 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 567
 568 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 569
 570 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 571
 572 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 573
 574 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 575
 576 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 577
 578 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 579
 580 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 581
 582 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 583
 584 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 585
 586 </ul></li>
 587
 588 <li>2010
 589 <ul>
 590
 591 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 592
 593 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 594
 595 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 596
 597 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 598
 599 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 600
 601 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 602
 603 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 604
 605 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 606
 607 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 608
 609 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 610
 611 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 612
 613 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 614
 615 </ul></li>
 616
 617 <li>2009
 618 <ul>
 619
 620 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 621
 622 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 623
 624 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 625
 626 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 627
 628 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 629
 630 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 631
 632 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 633
 634 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 635
 636 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 637
 638 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 639
 640 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 641
 642 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 643
 644 </ul></li>
 645
 646 <li>2008
 647 <ul>
 648
 649 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 650
 651 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 652
 653 </ul></li>
 654
 655 </ul>
 656
 657
 658
 659 <h2>Tags</h2>
 660 <ul>
 661
 662  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 663
 664  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 665
 666  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 667
 668  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 669
 670  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (8)</a></li>
 671
 672  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (14)</a></li>
 673
 674  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 675
 676  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 677
 678  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (96)</a></li>
 679
 680  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (146)</a></li>
 681
 682  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 683
 684  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (15)</a></li>
 685
 686  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (10)</a></li>
 687
 688  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 689
 690  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (243)</a></li>
 691
 692  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (21)</a></li>
 693
 694  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 695
 696  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (12)</a></li>
 697
 698  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (7)</a></li>
 699
 700  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (11)</a></li>
 701
 702  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (40)</a></li>
 703
 704  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (7)</a></li>
 705
 706  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (18)</a></li>
 707
 708  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 709
 710  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (7)</a></li>
 711
 712  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 713
 714  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 715
 716  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (26)</a></li>
 717
 718  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (244)</a></li>
 719
 720  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (162)</a></li>
 721
 722  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (11)</a></li>
 723
 724  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 725
 726  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (46)</a></li>
 727
 728  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (72)</a></li>
 729
 730  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 731
 732  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 733
 734  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 735
 736  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 737
 738  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (9)</a></li>
 739
 740  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 741
 742  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 743
 744  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 745
 746  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (39)</a></li>
 747
 748  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 749
 750  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 751
 752  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (44)</a></li>
 753
 754  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
 755
 756  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (9)</a></li>
 757
 758  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (24)</a></li>
 759
 760  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
 761
 762  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 763
 764  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (40)</a></li>
 765
 766  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 767
 768  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (29)</a></li>
 769
 770 </ul>
 771
 772
 773     </div>
 774     <p style="text-align: right">
 775  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 776 </p>
 777
 778   </body>
 779 </html>