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  13  <h1>
  14      <a href="https://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21     <h3>Entries tagged "usenix".</h3>
  22
  23     <div class="entry">
  24       <div class="title">
  25         <a href="https://people.skolelinux.org/pere/blog/A_fist_full_of_non_anonymous_Bitcoins.html">A fist full of non-anonymous Bitcoins</a>
  26       </div>
  27       <div class="date">
  28         29th January 2014
  29       </div>
  30       <div class="body">
  31         <p>Bitcoin is a incredible use of peer to peer communication and
  32 encryption, allowing direct and immediate money transfer without any
  33 central control.  It is sometimes claimed to be ideal for illegal
  34 activity, which I believe is quite a long way from the truth.  At least
  35 I would not conduct illegal money transfers using a system where the
  36 details of every transaction are kept forever.  This point is
  37 investigated in
  38 <a href="https://www.usenix.org/publications/login">USENIX ;login:</a>
  39 from December 2013, in the article
  40 "<a href="https://www.usenix.org/system/files/login/articles/03_meiklejohn-online.pdf">A
  41 Fistful of Bitcoins - Characterizing Payments Among Men with No
  42 Names</a>" by Sarah Meiklejohn, Marjori Pomarole,Grant Jordan, Kirill
  43 Levchenko, Damon McCoy, Geoffrey M. Voelker, and Stefan Savage.  They
  44 analyse the transaction log in the Bitcoin system, using it to find
  45 addresses belong to individuals and organisations and follow the flow
  46 of money from both Bitcoin theft and trades on Silk Road to where the
  47 money end up.  This is how they wrap up their article:</p>
  48
  49 <p><blockquote>
  50 <p>"To demonstrate the usefulness of this type of analysis, we turned
  51 our attention to criminal activity. In the Bitcoin economy, criminal
  52 activity can appear in a number of forms, such as dealing drugs on
  53 Silk Road or simply stealing someone else’s bitcoins. We followed the
  54 flow of bitcoins out of Silk Road (in particular, from one notorious
  55 address) and from a number of highly publicized thefts to see whether
  56 we could track the bitcoins to known services. Although some of the
  57 thieves attempted to use sophisticated mixing techniques (or possibly
  58 mix services) to obscure the flow of bitcoins, for the most part
  59 tracking the bitcoins was quite straightforward, and we ultimately saw
  60 large quantities of bitcoins flow to a variety of exchanges directly
  61 from the point of theft (or the withdrawal from Silk Road).</p>
  62
  63 <p>As acknowledged above, following stolen bitcoins to the point at
  64 which they are deposited into an exchange does not in itself identify
  65 the thief; however, it does enable further de-anonymization in the
  66 case in which certain agencies can determine (through, for example,
  67 subpoena power) the real-world owner of the account into which the
  68 stolen bitcoins were deposited.  Because such exchanges seem to serve
  69 as chokepoints into and out of the Bitcoin economy (i.e., there are
  70 few alternative ways to cash out), we conclude that using Bitcoin for
  71 money laundering or other illicit purposes does not (at least at
  72 present) seem to be particularly attractive."</p>
  73 </blockquote><p>
  74
  75 <p>These researches are not the first to analyse the Bitcoin
  76 transaction log.  The 2011 paper
  77 "<a href="http://arxiv.org/abs/1107.4524">An Analysis of Anonymity in
  78 the Bitcoin System</A>" by Fergal Reid and Martin Harrigan is
  79 summarized like this:</p>
  80
  81 <p><blockquote>
  82 "Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a
  83 complicated issue. Within the system, users are identified by
  84 public-keys only. An attacker wishing to de-anonymize its users will
  85 attempt to construct the one-to-many mapping between users and
  86 public-keys and associate information external to the system with the
  87 users. Bitcoin tries to prevent this attack by storing the mapping of
  88 a user to his or her public-keys on that user's node only and by
  89 allowing each user to generate as many public-keys as required. In
  90 this chapter we consider the topological structure of two networks
  91 derived from Bitcoin's public transaction history. We show that the
  92 two networks have a non-trivial topological structure, provide
  93 complementary views of the Bitcoin system and have implications for
  94 anonymity. We combine these structures with external information and
  95 techniques such as context discovery and flow analysis to investigate
  96 an alleged theft of Bitcoins, which, at the time of the theft, had a
  97 market value of approximately half a million U.S. dollars."
  98 </blockquote></p>
  99
 100 <p>I hope these references can help kill the urban myth that Bitcoin
 101 is anonymous.  It isn't really a good fit for illegal activites.  Use
 102 cash if you need to stay anonymous, at least until regular DNA
 103 sampling of notes and coins become the norm. :)</p>
 104
 105 <p>As usual, if you use Bitcoin and want to show your support of my
 106 activities, please send Bitcoin donations to my address
 107 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 108
 109       </div>
 110       <div class="tags">
 111
 112
 113         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin</a>, <a href="https://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="https://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>, <a href="https://people.skolelinux.org/pere/blog/tags/usenix">usenix</a>.
 114
 115
 116       </div>
 117     </div>
 118     <div class="padding"></div>
 119
 120     <div class="entry">
 121       <div class="title">
 122         <a href="https://people.skolelinux.org/pere/blog/12_years_of_outages___summarised_by_Stuart_Kendrick.html">12 years of outages - summarised by Stuart Kendrick</a>
 123       </div>
 124       <div class="date">
 125         26th October 2012
 126       </div>
 127       <div class="body">
 128         <p>I work at the <a href="http://www.uio.no/">University of Oslo</a>
 129 looking after the computers, mostly on the unix side, but in general
 130 all over the place.  I am also a member (and currently leader) of
 131 <a href="http://www.nuug.no/">the NUUG association</a>, which in turn
 132 make me a member of <a href="http://www.usenix.org/">USENIX</a>.  NUUG
 133 is an member organisation for us in Norway interested in free
 134 software, open standards and unix like operating systems, and USENIX
 135 is a US based member organisation with similar targets.  And thanks to
 136 these memberships, I get all issues of the great USENIX magazine
 137 <a href="https://www.usenix.org/publications/login">;login:</a> in the
 138 mail several times a year.  The magazine is great, and I read most of
 139 it every time.</p>
 140
 141 <p>In the last issue of the USENIX magazine ;login:, there is an
 142 article by <a href="http://www.skendric.com/">Stuart Kendrick</a> from
 143 Fred Hutchinson Cancer Research Center titled
 144 "<a href="https://www.usenix.org/publications/login/october-2012-volume-37-number-5/what-takes-us-down">What
 145 Takes Us Down</a>" (longer version also
 146 <a href="http://www.skendric.com/problem/incident-analysis/2012-06-30/What-Takes-Us-Down.pdf">available
 147 from his own site</a>), where he report what he found when he
 148 processed the outage reports (both planned and unplanned) from the
 149 last twelve years and classified them according to cause, time of day,
 150 etc etc.  The article is a good read to get some empirical data on
 151 what kind of problems affect a data centre, but what really inspired
 152 me was the kind of reporting they had put in place since 2000.<p>
 153
 154 <p>The centre set up a mailing list, and started to send fairly
 155 standardised messages to this list when a outage was planned or when
 156 it already occurred, to announce the plan and get feedback on the
 157 assumtions on scope and user impact.  Here is the two example from the
 158 article: First the unplanned outage:
 159
 160 <blockquote><pre>
 161 Subject:     Exchange 2003 Cluster Issues
 162 Severity:    Critical (Unplanned)
 163 Start:       Monday, May 7, 2012, 11:58
 164 End:         Monday, May 7, 2012, 12:38
 165 Duration:    40 minutes
 166 Scope:       Exchange 2003
 167 Description: The HTTPS service on the Exchange cluster crashed, triggering
 168              a cluster failover.
 169
 170 User Impact: During this period, all Exchange users were unable to
 171              access e-mail. Zimbra users were unaffected.
 172 Technician:  [xxx]
 173 </pre></blockquote>
 174
 175 Next the planned outage:
 176
 177 <blockquote><pre>
 178 Subject:     H Building Switch Upgrades
 179 Severity:    Major (Planned)
 180 Start:       Saturday, June 16, 2012, 06:00
 181 End:         Saturday, June 16, 2012, 16:00
 182 Duration:    10 hours
 183 Scope:       H2 Transport
 184 Description: Currently, Catalyst 4006s provide 10/100 Ethernet to end-
 185              stations. We will replace these with newer Catalyst
 186              4510s.
 187 User Impact: All users on H2 will be isolated from the network during
 188              this work. Afterward, they will have gigabit
 189              connectivity.
 190 Technician:  [xxx]
 191 </pre></blockquote>
 192
 193 <p>He notes in his article that the date formats and other fields have
 194 been a bit too free form to make it easy to automatically process them
 195 into a database for further analysis, and I would have used ISO 8601
 196 dates myself to make it easier to process (in other words I would ask
 197 people to write '2012-06-16 06:00 +0000' instead of the start time
 198 format listed above).  There are also other issues with the format
 199 that could be improved, read the article for the details.</p>
 200
 201 <p>I find the idea of standardising outage messages seem to be such a
 202 good idea that I would like to get it implemented here at the
 203 university too.  We do register
 204 <a href="http://www.uio.no/tjenester/it/aktuelt/planlagte-tjenesteavbrudd/">planned
 205 changes and outages in a calendar</a>, and report the to a mailing
 206 list, but we do not do so in a structured format and there is not a
 207 report to the same location for unplanned outages.  Perhaps something
 208 for other sites to consider too?</p>
 209
 210       </div>
 211       <div class="tags">
 212
 213
 214         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="https://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="https://people.skolelinux.org/pere/blog/tags/standard">standard</a>, <a href="https://people.skolelinux.org/pere/blog/tags/usenix">usenix</a>.
 215
 216
 217       </div>
 218     </div>
 219     <div class="padding"></div>
 220
 221     <p style="text-align: right;"><a href="usenix.rss"><img src="https://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
 222     <div id="sidebar">
 223
 224
 225
 226 <h2>Archive</h2>
 227 <ul>
 228
 229 <li>2023
 230 <ul>
 231
 232 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/01/">January (3)</a></li>
 233
 234 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/02/">February (1)</a></li>
 235
 236 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/04/">April (2)</a></li>
 237
 238 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/05/">May (3)</a></li>
 239
 240 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/06/">June (1)</a></li>
 241
 242 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/08/">August (1)</a></li>
 243
 244 </ul></li>
 245
 246 <li>2022
 247 <ul>
 248
 249 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/02/">February (1)</a></li>
 250
 251 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/03/">March (3)</a></li>
 252
 253 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/04/">April (2)</a></li>
 254
 255 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/06/">June (2)</a></li>
 256
 257 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/07/">July (1)</a></li>
 258
 259 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/09/">September (1)</a></li>
 260
 261 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/10/">October (1)</a></li>
 262
 263 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/12/">December (1)</a></li>
 264
 265 </ul></li>
 266
 267 <li>2021
 268 <ul>
 269
 270 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/01/">January (2)</a></li>
 271
 272 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/02/">February (1)</a></li>
 273
 274 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/05/">May (1)</a></li>
 275
 276 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/06/">June (1)</a></li>
 277
 278 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/07/">July (3)</a></li>
 279
 280 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/08/">August (1)</a></li>
 281
 282 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/09/">September (1)</a></li>
 283
 284 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/10/">October (1)</a></li>
 285
 286 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/12/">December (1)</a></li>
 287
 288 </ul></li>
 289
 290 <li>2020
 291 <ul>
 292
 293 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
 294
 295 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
 296
 297 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/04/">April (2)</a></li>
 298
 299 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/05/">May (3)</a></li>
 300
 301 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/06/">June (2)</a></li>
 302
 303 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/07/">July (1)</a></li>
 304
 305 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/09/">September (1)</a></li>
 306
 307 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/10/">October (1)</a></li>
 308
 309 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/11/">November (1)</a></li>
 310
 311 </ul></li>
 312
 313 <li>2019
 314 <ul>
 315
 316 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
 317
 318 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
 319
 320 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
 321
 322 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
 323
 324 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
 325
 326 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
 327
 328 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
 329
 330 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
 331
 332 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
 333
 334 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
 335
 336 </ul></li>
 337
 338 <li>2018
 339 <ul>
 340
 341 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 342
 343 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 344
 345 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 346
 347 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 348
 349 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 350
 351 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 352
 353 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 354
 355 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 356
 357 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 358
 359 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 360
 361 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
 362
 363 </ul></li>
 364
 365 <li>2017
 366 <ul>
 367
 368 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 369
 370 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 371
 372 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 373
 374 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 375
 376 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 377
 378 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 379
 380 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 381
 382 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 383
 384 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 385
 386 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 387
 388 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 389
 390 </ul></li>
 391
 392 <li>2016
 393 <ul>
 394
 395 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 396
 397 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 398
 399 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 400
 401 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 402
 403 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 404
 405 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 406
 407 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 408
 409 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 410
 411 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 412
 413 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 414
 415 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 416
 417 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 418
 419 </ul></li>
 420
 421 <li>2015
 422 <ul>
 423
 424 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 425
 426 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 427
 428 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 429
 430 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 431
 432 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 433
 434 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 435
 436 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 437
 438 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 439
 440 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 441
 442 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 443
 444 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 445
 446 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 447
 448 </ul></li>
 449
 450 <li>2014
 451 <ul>
 452
 453 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 454
 455 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 456
 457 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 458
 459 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 460
 461 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 462
 463 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 464
 465 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 466
 467 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 468
 469 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 470
 471 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 472
 473 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 474
 475 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 476
 477 </ul></li>
 478
 479 <li>2013
 480 <ul>
 481
 482 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 483
 484 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 485
 486 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 487
 488 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 489
 490 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 491
 492 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 493
 494 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 495
 496 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 497
 498 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 499
 500 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 501
 502 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 503
 504 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 505
 506 </ul></li>
 507
 508 <li>2012
 509 <ul>
 510
 511 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 512
 513 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 514
 515 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 516
 517 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 518
 519 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 520
 521 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 522
 523 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 524
 525 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 526
 527 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 528
 529 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 530
 531 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 532
 533 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 534
 535 </ul></li>
 536
 537 <li>2011
 538 <ul>
 539
 540 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 541
 542 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 543
 544 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 545
 546 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 547
 548 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 549
 550 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 551
 552 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 553
 554 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 555
 556 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 557
 558 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 559
 560 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 561
 562 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 563
 564 </ul></li>
 565
 566 <li>2010
 567 <ul>
 568
 569 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 570
 571 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 572
 573 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 574
 575 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 576
 577 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 578
 579 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 580
 581 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 582
 583 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 584
 585 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 586
 587 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 588
 589 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 590
 591 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 592
 593 </ul></li>
 594
 595 <li>2009
 596 <ul>
 597
 598 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 599
 600 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 601
 602 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 603
 604 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 605
 606 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 607
 608 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 609
 610 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 611
 612 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 613
 614 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 615
 616 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 617
 618 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 619
 620 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 621
 622 </ul></li>
 623
 624 <li>2008
 625 <ul>
 626
 627 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 628
 629 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 630
 631 </ul></li>
 632
 633 </ul>
 634
 635
 636
 637 <h2>Tags</h2>
 638 <ul>
 639
 640  <li><a href="https://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (19)</a></li>
 641
 642  <li><a href="https://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 643
 644  <li><a href="https://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 645
 646  <li><a href="https://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 647
 648  <li><a href="https://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (9)</a></li>
 649
 650  <li><a href="https://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (12)</a></li>
 651
 652  <li><a href="https://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
 653
 654  <li><a href="https://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 655
 656  <li><a href="https://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 657
 658  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian">debian (194)</a></li>
 659
 660  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (159)</a></li>
 661
 662  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (9)</a></li>
 663
 664  <li><a href="https://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
 665
 666  <li><a href="https://people.skolelinux.org/pere/blog/tags/dld">dld (18)</a></li>
 667
 668  <li><a href="https://people.skolelinux.org/pere/blog/tags/docbook">docbook (30)</a></li>
 669
 670  <li><a href="https://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 671
 672  <li><a href="https://people.skolelinux.org/pere/blog/tags/english">english (451)</a></li>
 673
 674  <li><a href="https://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 675
 676  <li><a href="https://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
 677
 678  <li><a href="https://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
 679
 680  <li><a href="https://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 681
 682  <li><a href="https://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
 683
 684  <li><a href="https://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 685
 686  <li><a href="https://people.skolelinux.org/pere/blog/tags/intervju">intervju (43)</a></li>
 687
 688  <li><a href="https://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
 689
 690  <li><a href="https://people.skolelinux.org/pere/blog/tags/kart">kart (23)</a></li>
 691
 692  <li><a href="https://people.skolelinux.org/pere/blog/tags/kodi">kodi (6)</a></li>
 693
 694  <li><a href="https://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 695
 696  <li><a href="https://people.skolelinux.org/pere/blog/tags/lego">lego (5)</a></li>
 697
 698  <li><a href="https://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 699
 700  <li><a href="https://people.skolelinux.org/pere/blog/tags/linuxcnc">linuxcnc (5)</a></li>
 701
 702  <li><a href="https://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 703
 704  <li><a href="https://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 705
 706  <li><a href="https://people.skolelinux.org/pere/blog/tags/madewithcc">madewithcc (3)</a></li>
 707
 708  <li><a href="https://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 709
 710  <li><a href="https://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (46)</a></li>
 711
 712  <li><a href="https://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (15)</a></li>
 713
 714  <li><a href="https://people.skolelinux.org/pere/blog/tags/noark5">noark5 (23)</a></li>
 715
 716  <li><a href="https://people.skolelinux.org/pere/blog/tags/norsk">norsk (320)</a></li>
 717
 718  <li><a href="https://people.skolelinux.org/pere/blog/tags/nuug">nuug (198)</a></li>
 719
 720  <li><a href="https://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (40)</a></li>
 721
 722  <li><a href="https://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 723
 724  <li><a href="https://people.skolelinux.org/pere/blog/tags/opensnitch">opensnitch (4)</a></li>
 725
 726  <li><a href="https://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (75)</a></li>
 727
 728  <li><a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern (114)</a></li>
 729
 730  <li><a href="https://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
 731
 732  <li><a href="https://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 733
 734  <li><a href="https://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 735
 736  <li><a href="https://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 737
 738  <li><a href="https://people.skolelinux.org/pere/blog/tags/robot">robot (17)</a></li>
 739
 740  <li><a href="https://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 741
 742  <li><a href="https://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
 743
 744  <li><a href="https://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 745
 746  <li><a href="https://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (59)</a></li>
 747
 748  <li><a href="https://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 749
 750  <li><a href="https://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 751
 752  <li><a href="https://people.skolelinux.org/pere/blog/tags/standard">standard (74)</a></li>
 753
 754  <li><a href="https://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
 755
 756  <li><a href="https://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (14)</a></li>
 757
 758  <li><a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (64)</a></li>
 759
 760  <li><a href="https://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (5)</a></li>
 761
 762  <li><a href="https://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 763
 764  <li><a href="https://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 765
 766  <li><a href="https://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (20)</a></li>
 767
 768  <li><a href="https://people.skolelinux.org/pere/blog/tags/video">video (79)</a></li>
 769
 770  <li><a href="https://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 771
 772  <li><a href="https://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
 773
 774 </ul>
 775
 776
 777     </div>
 778     <p style="text-align: right">
 779  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 780 </p>
 781
 782   </body>
 783 </html>