blog/Automatic_proxy_configuration_with_Debian_Edu___Skolelinux.html

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   6     <title>Petter Reinholdtsen: Automatic proxy configuration with Debian Edu / Skolelinux</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     <div class="entry">
  23       <div class="title">Automatic proxy configuration with Debian Edu / Skolelinux</div>
  24       <div class="date">13th February 2012</div>
  25       <div class="body"><p>New in the Squeeze version of
  26 <a href="http://www.skolelinux.org/">Debian Edu / Skolelinux</a> is the
  27 ability for clients to automatically configure their proxy settings
  28 based on their environment.  We want all systems on the client to use
  29 the WPAD based proxy definition fetched from <tt>http://wpad/wpad.dat</tt>, to
  30 allow sites to control the proxy setting from a central place and make
  31 sure clients do not have hard coded proxy settings.  The schools can
  32 change the global proxy setting by editing
  33 <tt>tjener:/etc/debian-edu/www/wpad.dat</tt> and the change propagate
  34 to all Debian Edu clients in the network.</p>
  35
  36 <p>The problem is that some systems do not understand the WPAD system.
  37 In other words, how do one get from a WPAD file like this (this is a
  38 simple one, they can run arbitrary code):</p>
  39
  40 <blockquote><pre>
  41 function FindProxyForURL(url, host)
  42 {
  43    if (!isResolvable(host) ||
  44        isPlainHostName(host) ||
  45        dnsDomainIs(host, ".intern"))
  46       return "DIRECT";
  47    else
  48       return "PROXY webcache:3128; DIRECT";
  49 }
  50 </pre></blockquote>
  51
  52 <p>to a proxy setting in the process environment looking like this:</p>
  53
  54 <blockquote><pre>
  55 http_proxy=http://webcache:3128/
  56 ftp_proxy=http://webcache:3128/
  57 </pre></blockquote>
  58
  59 <p>To do this conversion I developed a perl script that will execute
  60 the javascript fragment in the WPAD file and return the proxy that
  61 would be used for
  62 <tt><a href="http://www.debian.org/">http://www.debian.org/</a></tt>,
  63 and insert this extracted proxy URL in <tt>/etc/environment</tt> and
  64 <tt>/etc/apt/apt.conf</tt>.  The perl script wpad-extract work just
  65 fine in Squeeze, but in Wheezy the library it need to run the
  66 javascript code is <a href="http://bugs.debian.org/631045">no longer
  67 able to build</a> because the C library it depended on is now a C++
  68 library.  I hope someone find a solution to that problem before Wheezy
  69 is frozen.  An alternative would be for us to rewrite wpad-extract to
  70 use some other javascript library currently working in Wheezy, but no
  71 known alternative is known at the moment.</p>
  72
  73 <p>This automatic proxy system allow the roaming workstation (aka
  74 laptop) setup in Debian Edu/Squeeze to use the proxy when the laptop
  75 is connected to the backbone network in a Debian Edu setup, and to
  76 automatically use any proxy present and announced using the WPAD
  77 feature when it is connected to other networks.  And if no proxy is
  78 announced, direct connections will be used instead.</p>
  79
  80 <p>Silently using a proxy announced on the network might be a privacy
  81 or security problem.  But those controlling DHCP and DNS on a network
  82 could just as easily set up a transparent proxy, and force all HTTP
  83 and FTP connections to use a proxy anyway, so I consider that
  84 distinction to be academic.  If you are afraid of using the wrong
  85 proxy, you should avoid connecting to the network in question in the
  86 first place.  In Debian Edu, the proxy setup is updated using dhcp and
  87 ifupdown hooks, to make sure the configuration is updated every time
  88 the network setup changes.</p>
  89
  90 <p>The WPAD system is documented in a
  91 <a href="http://tools.ietf.org/html/draft-ietf-wrec-wpad-01">IETF
  92 draft</a> and a
  93 <a href="http://en.wikipedia.org/wiki/Web_Proxy_Autodiscovery_Protocol">Wikipedia
  94 page</a> for those that want to learn more.</p>
  95 </div>
  96
  97       <div class="tags">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>.</div>
  98
  99
 100     </div>
 101
 102
 103
 104
 105     <div id="sidebar">
 106
 107
 108
 109 <h2>Archive</h2>
 110 <ul>
 111
 112 <li>2021
 113 <ul>
 114
 115 <li><a href="http://people.skolelinux.org/pere/blog/archive/2021/01/">January (2)</a></li>
 116
 117 </ul></li>
 118
 119 <li>2020
 120 <ul>
 121
 122 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
 123
 124 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
 125
 126 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/04/">April (2)</a></li>
 127
 128 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/05/">May (3)</a></li>
 129
 130 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/06/">June (2)</a></li>
 131
 132 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/07/">July (1)</a></li>
 133
 134 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/09/">September (1)</a></li>
 135
 136 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/10/">October (1)</a></li>
 137
 138 <li><a href="http://people.skolelinux.org/pere/blog/archive/2020/11/">November (1)</a></li>
 139
 140 </ul></li>
 141
 142 <li>2019
 143 <ul>
 144
 145 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
 146
 147 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
 148
 149 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
 150
 151 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
 152
 153 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
 154
 155 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
 156
 157 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
 158
 159 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
 160
 161 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
 162
 163 <li><a href="http://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
 164
 165 </ul></li>
 166
 167 <li>2018
 168 <ul>
 169
 170 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 171
 172 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 173
 174 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 175
 176 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 177
 178 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 179
 180 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 181
 182 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 183
 184 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 185
 186 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 187
 188 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 189
 190 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
 191
 192 </ul></li>
 193
 194 <li>2017
 195 <ul>
 196
 197 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 198
 199 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 200
 201 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 202
 203 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 204
 205 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 206
 207 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 208
 209 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 210
 211 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 212
 213 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 214
 215 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 216
 217 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 218
 219 </ul></li>
 220
 221 <li>2016
 222 <ul>
 223
 224 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 225
 226 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 227
 228 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 229
 230 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 231
 232 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 233
 234 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 235
 236 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 237
 238 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 239
 240 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 241
 242 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 243
 244 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 245
 246 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 247
 248 </ul></li>
 249
 250 <li>2015
 251 <ul>
 252
 253 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 254
 255 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 256
 257 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 258
 259 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 260
 261 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 262
 263 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 264
 265 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 266
 267 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 268
 269 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 270
 271 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 272
 273 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 274
 275 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 276
 277 </ul></li>
 278
 279 <li>2014
 280 <ul>
 281
 282 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 283
 284 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 285
 286 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 287
 288 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 289
 290 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 291
 292 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 293
 294 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 295
 296 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 297
 298 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 299
 300 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 301
 302 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 303
 304 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 305
 306 </ul></li>
 307
 308 <li>2013
 309 <ul>
 310
 311 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 312
 313 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 314
 315 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 316
 317 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 318
 319 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 320
 321 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 322
 323 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 324
 325 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 326
 327 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 328
 329 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 330
 331 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 332
 333 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 334
 335 </ul></li>
 336
 337 <li>2012
 338 <ul>
 339
 340 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 341
 342 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 343
 344 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 345
 346 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 347
 348 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 349
 350 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 351
 352 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 353
 354 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 355
 356 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 357
 358 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 359
 360 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 361
 362 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 363
 364 </ul></li>
 365
 366 <li>2011
 367 <ul>
 368
 369 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 370
 371 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 372
 373 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 374
 375 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 376
 377 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 378
 379 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 380
 381 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 382
 383 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 384
 385 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 386
 387 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 388
 389 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 390
 391 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 392
 393 </ul></li>
 394
 395 <li>2010
 396 <ul>
 397
 398 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 399
 400 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 401
 402 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 403
 404 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 405
 406 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 407
 408 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 409
 410 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 411
 412 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 413
 414 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 415
 416 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 417
 418 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 419
 420 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 421
 422 </ul></li>
 423
 424 <li>2009
 425 <ul>
 426
 427 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 428
 429 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 430
 431 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 432
 433 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 434
 435 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 436
 437 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 438
 439 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 440
 441 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 442
 443 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 444
 445 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 446
 447 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 448
 449 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 450
 451 </ul></li>
 452
 453 <li>2008
 454 <ul>
 455
 456 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 457
 458 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 459
 460 </ul></li>
 461
 462 </ul>
 463
 464
 465
 466 <h2>Tags</h2>
 467 <ul>
 468
 469  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (16)</a></li>
 470
 471  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 472
 473  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 474
 475  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 476
 477  <li><a href="http://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (9)</a></li>
 478
 479  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (11)</a></li>
 480
 481  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
 482
 483  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 484
 485  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 486
 487  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (175)</a></li>
 488
 489  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (159)</a></li>
 490
 491  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (7)</a></li>
 492
 493  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
 494
 495  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
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 497  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (28)</a></li>
 498
 499  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 500
 501  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (422)</a></li>
 502
 503  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 504
 505  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
 506
 507  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
 508
 509  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 510
 511  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
 512
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 514
 515  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (43)</a></li>
 516
 517  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
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 520
 521  <li><a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi (4)</a></li>
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 523  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 524
 525  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
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 527  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 528
 529  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 530
 531  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 532
 533  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 534
 535  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (42)</a></li>
 536
 537  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (13)</a></li>
 538
 539  <li><a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5 (22)</a></li>
 540
 541  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (316)</a></li>
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 546
 547  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 548
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 550
 551  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (111)</a></li>
 552
 553  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
 554
 555  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 556
 557  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 558
 559  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 560
 561  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (12)</a></li>
 562
 563  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 564
 565  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
 566
 567  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 568
 569  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (59)</a></li>
 570
 571  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 572
 573  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 574
 575  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (70)</a></li>
 576
 577  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
 578
 579  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
 580
 581  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (61)</a></li>
 582
 583  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (5)</a></li>
 584
 585  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 586
 587  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 588
 589  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (18)</a></li>
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 591  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (74)</a></li>
 592
 593  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 594
 595  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
 596
 597 </ul>
 598
 599
 600     </div>
 601     <p style="text-align: right">
 602  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 603 </p>
 604
 605   </body>
 606 </html>