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   6     <title>Petter Reinholdtsen: entries from October 2016</title>
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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 2016.</h3>
  23
  24     <div class="entry">
  25       <div class="title">
  26         <a href="http://people.skolelinux.org/pere/blog/Isenkram__Appstream_and_udev_make_life_as_a_LEGO_builder_easier.html">Isenkram, Appstream and udev make life as a LEGO builder easier</a>
  27       </div>
  28       <div class="date">
  29          7th October 2016
  30       </div>
  31       <div class="body">
  32         <p><a href="http://packages.qa.debian.org/isenkram">The Isenkram
  33 system</a> provide a practical and easy way to figure out which
  34 packages support the hardware in a given machine.  The command line
  35 tool <tt>isenkram-lookup</tt> and the tasksel options provide a
  36 convenient way to list and install packages relevant for the current
  37 hardware during system installation, both user space packages and
  38 firmware packages. The GUI background daemon on the other hand provide
  39 a pop-up proposing to install packages when a new dongle is inserted
  40 while using the computer.  For example, if you plug in a smart card
  41 reader, the system will ask if you want to install <tt>pcscd</tt> if
  42 that package isn't already installed, and if you plug in a USB video
  43 camera the system will ask if you want to install <tt>cheese</tt> if
  44 cheese is currently missing.  This already work just fine.</p>
  45
  46 <p>But Isenkram depend on a database mapping from hardware IDs to
  47 package names.  When I started no such database existed in Debian, so
  48 I made my own data set and included it with the isenkram package and
  49 made isenkram fetch the latest version of this database from git using
  50 http.  This way the isenkram users would get updated package proposals
  51 as soon as I learned more about hardware related packages.</p>
  52
  53 <p>The hardware is identified using modalias strings.  The modalias
  54 design is from the Linux kernel where most hardware descriptors are
  55 made available as a strings that can be matched using filename style
  56 globbing.  It handle USB, PCI, DMI and a lot of other hardware related
  57 identifiers.</p>
  58
  59 <p>The downside to the Isenkram specific database is that there is no
  60 information about relevant distribution / Debian version, making
  61 isenkram propose obsolete packages too.  But along came AppStream, a
  62 cross distribution mechanism to store and collect metadata about
  63 software packages.  When I heard about the proposal, I contacted the
  64 people involved and suggested to add a hardware matching rule using
  65 modalias strings in the specification, to be able to use AppStream for
  66 mapping hardware to packages.  This idea was accepted and AppStream is
  67 now a great way for a package to announce the hardware it support in a
  68 distribution neutral way.  I wrote
  69 <a href="http://people.skolelinux.org/pere/blog/Using_appstream_with_isenkram_to_install_hardware_related_packages_in_Debian.html">a
  70 recipe on how to add such meta-information</a> in a blog post last
  71 December.  If you have a hardware related package in Debian, please
  72 announce the relevant hardware IDs using AppStream.</p>
  73
  74 <p>In Debian, almost all packages that can talk to a LEGO Mindestorms
  75 RCX or NXT unit, announce this support using AppStream.  The effect is
  76 that when you insert such LEGO robot controller into your Debian
  77 machine, Isenkram will propose to install the packages needed to get
  78 it working.  The intention is that this should allow the local user to
  79 start programming his robot controller right away without having to
  80 guess what packages to use or which permissions to fix.</p>
  81
  82 <p>But when I sat down with my son the other day to program our NXT
  83 unit using his Debian Stretch computer, I discovered something
  84 annoying.  The local console user (ie my son) did not get access to
  85 the USB device for programming the unit.  This used to work, but no
  86 longer in Jessie and Stretch.  After some investigation and asking
  87 around on #debian-devel, I discovered that this was because udev had
  88 changed the mechanism used to grant access to local devices.  The
  89 ConsoleKit mechanism from <tt>/lib/udev/rules.d/70-udev-acl.rules</tt>
  90 no longer applied, because LDAP users no longer was added to the
  91 plugdev group during login.  Michael Biebl told me that this method
  92 was obsolete and the new method used ACLs instead.  This was good
  93 news, as the plugdev mechanism is a mess when using a remote user
  94 directory like LDAP.  Using ACLs would make sure a user lost device
  95 access when she logged out, even if the user left behind a background
  96 process which would retain the plugdev membership with the ConsoleKit
  97 setup.  Armed with this knowledge I moved on to fix the access problem
  98 for the LEGO Mindstorms related packages.</p>
  99
 100 <p>The new system uses a udev tag, 'uaccess'.  It can either be
 101 applied directly for a device, or is applied in
 102 /lib/udev/rules.d/70-uaccess.rules for classes of devices.  As the
 103 LEGO Mindstorms udev rules did not have a class, I decided to add the
 104 tag directly in the udev rules files included in the packages.  Here
 105 is one example.  For the nqc C compiler for the RCX, the
 106 <tt>/lib/udev/rules.d/60-nqc.rules</tt> file now look like this:
 107
 108 <p><pre>
 109 SUBSYSTEM=="usb", ACTION=="add", ATTR{idVendor}=="0694", ATTR{idProduct}=="0001", \
 110     SYMLINK+="rcx-%k", TAG+="uaccess"
 111 </pre></p>
 112
 113 <p>The key part is the 'TAG+="uaccess"' at the end.  I suspect all
 114 packages using plugdev in their /lib/udev/rules.d/ files should be
 115 changed to use this tag (either directly or indirectly via
 116 <tt>70-uaccess.rules</tt>).  Perhaps a lintian check should be created
 117 to detect this?</p>
 118
 119 <p>I've been unable to find good documentation on the uaccess feature.
 120 It is unclear to me if the uaccess tag is an internal implementation
 121 detail like the udev-acl tag used by
 122 <tt>/lib/udev/rules.d/70-udev-acl.rules</tt>.  If it is, I guess the
 123 indirect method is the preferred way.  Michael
 124 <a href="https://github.com/systemd/systemd/issues/4288">asked for more
 125 documentation from the systemd project</a> and I hope it will make
 126 this clearer.  For now I use the generic classes when they exist and
 127 is already handled by <tt>70-uaccess.rules</tt>, and add the tag
 128 directly if no such class exist.</p>
 129
 130 <p>To learn more about the isenkram system, please check out
 131 <a href="http://people.skolelinux.org/pere/blog/tags/isenkram/">my
 132 blog posts tagged isenkram</a>.</p>
 133
 134 <p>To help out making life for LEGO constructors in Debian easier,
 135 please join us on our IRC channel
 136 <a href="irc://irc.debian.org/%23debian-lego">#debian-lego</a> and join
 137 the <a href="https://alioth.debian.org/projects/debian-lego/">Debian
 138 LEGO team</a> in the Alioth project we created yesterday.  A mailing
 139 list is not yet created, but we are working on it. :)</p>
 140
 141 <p>As usual, if you use Bitcoin and want to show your support of my
 142 activities, please send Bitcoin donations to my address
 143 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&label=PetterReinholdtsenBlog">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 144
 145       </div>
 146       <div class="tags">
 147
 148
 149         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/isenkram">isenkram</a>.
 150
 151
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 155
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 157     <div id="sidebar">
 158
 159
 160
 161 <h2>Archive</h2>
 162 <ul>
 163
 164 <li>2016
 165 <ul>
 166
 167 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 168
 169 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 170
 171 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 172
 173 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 174
 175 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 176
 177 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 178
 179 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 180
 181 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 182
 183 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 184
 185 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (1)</a></li>
 186
 187 </ul></li>
 188
 189 <li>2015
 190 <ul>
 191
 192 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 193
 194 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 195
 196 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 197
 198 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 199
 200 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 201
 202 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 203
 204 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 205
 206 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 207
 208 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 209
 210 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 211
 212 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 213
 214 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 215
 216 </ul></li>
 217
 218 <li>2014
 219 <ul>
 220
 221 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 222
 223 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 224
 225 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 226
 227 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 228
 229 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 230
 231 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 232
 233 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 234
 235 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 236
 237 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 238
 239 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 240
 241 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 242
 243 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 244
 245 </ul></li>
 246
 247 <li>2013
 248 <ul>
 249
 250 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 251
 252 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 253
 254 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 255
 256 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 257
 258 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 259
 260 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 261
 262 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 263
 264 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 265
 266 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 267
 268 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 269
 270 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 271
 272 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 273
 274 </ul></li>
 275
 276 <li>2012
 277 <ul>
 278
 279 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 280
 281 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 282
 283 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 284
 285 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 286
 287 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 288
 289 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 290
 291 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 292
 293 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 294
 295 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 296
 297 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 298
 299 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 300
 301 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 302
 303 </ul></li>
 304
 305 <li>2011
 306 <ul>
 307
 308 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 309
 310 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 311
 312 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 313
 314 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 315
 316 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 317
 318 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 319
 320 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 321
 322 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 323
 324 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 325
 326 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 327
 328 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 329
 330 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 331
 332 </ul></li>
 333
 334 <li>2010
 335 <ul>
 336
 337 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 338
 339 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 340
 341 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 342
 343 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 344
 345 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 346
 347 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 348
 349 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 350
 351 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 352
 353 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 354
 355 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 356
 357 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 358
 359 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 360
 361 </ul></li>
 362
 363 <li>2009
 364 <ul>
 365
 366 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 367
 368 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 369
 370 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 371
 372 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 373
 374 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 375
 376 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 377
 378 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 379
 380 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 381
 382 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 383
 384 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 385
 386 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 387
 388 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 389
 390 </ul></li>
 391
 392 <li>2008
 393 <ul>
 394
 395 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 396
 397 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 398
 399 </ul></li>
 400
 401 </ul>
 402
 403
 404
 405 <h2>Tags</h2>
 406 <ul>
 407
 408  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 409
 410  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 411
 412  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 413
 414  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 415
 416  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
 417
 418  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (16)</a></li>
 419
 420  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 421
 422  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 423
 424  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (136)</a></li>
 425
 426  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (157)</a></li>
 427
 428  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 429
 430  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (15)</a></li>
 431
 432  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (23)</a></li>
 433
 434  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 435
 436  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (328)</a></li>
 437
 438  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 439
 440  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 441
 442  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (28)</a></li>
 443
 444  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 445
 446  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
 447
 448  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 449
 450  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
 451
 452  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (13)</a></li>
 453
 454  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (19)</a></li>
 455
 456  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 457
 458  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 459
 460  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 461
 462  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 463
 464  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 465
 466  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
 467
 468  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (8)</a></li>
 469
 470  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (278)</a></li>
 471
 472  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (182)</a></li>
 473
 474  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (26)</a></li>
 475
 476  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 477
 478  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (61)</a></li>
 479
 480  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (92)</a></li>
 481
 482  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 483
 484  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 485
 486  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 487
 488  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 489
 490  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (9)</a></li>
 491
 492  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 493
 494  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 495
 496  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 497
 498  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (48)</a></li>
 499
 500  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 501
 502  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 503
 504  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (49)</a></li>
 505
 506  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (4)</a></li>
 507
 508  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (10)</a></li>
 509
 510  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (39)</a></li>
 511
 512  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (2)</a></li>
 513
 514  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 515
 516  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 517
 518  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (59)</a></li>
 519
 520  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 521
 522  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (38)</a></li>
 523
 524 </ul>
 525
 526
 527     </div>
 528     <p style="text-align: right">
 529  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 530 </p>
 531
 532   </body>
 533 </html>