<link>http://people.skolelinux.org/pere/blog/</link>
<atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
+ <item>
+ <title>Artikkel om Noark 5 Tjenestegrensesnitt og Nikita i Arkivråd nummer 3 for 2019</title>
+ <link>http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html</guid>
+ <pubDate>Thu, 26 Dec 2019 08:00:00 +0100</pubDate>
+ <description><p>Like før julaften ble en artikkel jeg har skrevet om vedlikehold av
+<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard">Noark
+5 Tjenestegrensesnitt</a> og Nikita publisert i <a
+href="https://www.arkivrad.no/arkivrad">tidsskriftet Arkivråd</a>.
+Det er basert på
+<a href="http://people.skolelinux.org/pere/blog/_pen_og_gjennomsiktig_vedlikehold_av_spesifikasjonen_for_Noark_5_Tjenestegrensesnitt.html">min bloggpost
+om samme tema</a> som ble publisert 2019-03-11. Jeg oppdaget nettopp
+at nettsiden til tidsskriftet Arkivråd er oppdatert med siste utgave,
+og artikkelen dermed er tilgjengelig for alle. Du finner den i
+<a href="https://www.arkivrad.no/sites/arkivrad/files/arkivrad_03_2019_nett.pdf">PDF-en
+til nummer 2019/3 på side 30-33</a>. Jeg håper leserne av
+tidsskriftet får lyst til å sjekke ut tjenestegrensesnittet og at
+artikkelen vil gjøre det enklere for flere å bidra til en enda bedre,
+klarere og mer entydig API-spesifikasjon. Det kan gjøre at
+<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">arkivsystemet
+Nikita</a> kan bli enda bedre når spesifikasjonen forbedres.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>Meningsløst, men for hvem...</title>
+ <link>http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html</guid>
+ <pubDate>Wed, 25 Dec 2019 10:35:00 +0100</pubDate>
+ <description><p>En historie som har betydd endel for meg, og som jeg av og til
+tenker på når hverdagen tynger, ble så vidt jeg har klart å finne ut,
+skrevet av <a href="https://en.wikipedia.org/wiki/Loren_Eiseley">Loren
+Eiseley</a> <a href="https://en.wikipedia.org/wiki/The_Star_Thrower">i
+flere ulike varianter</a>. På norsk tror jeg den går under navnet
+«Gutten og sjøstjernen», og jeg fant en oversettelse av en utgave av den
+hos
+<a href="https://no.quora.com/Hva-er-din-favoritthistorie">Quora</a>.
+Fant også <a href="https://www.youtube.com/watch?v=-qClChUdlfI">en
+filmatisering</a>, men den versjonen jeg liker best fant jeg
+<a href="https://www.goodreads.com/author/quotes/56782.Loren_Eiseley">hos
+Goodreads</a>. Jeg oversatte den utgaven til norsk i går, og har lyst
+til å dele den med deg:
+
+<blockquote><p>Mens jeg tok en pause fra skrivingen og vandret på en
+øde strand ved daggry, så jeg en gutt i det fjerne bøye seg ned og
+kaste noe mens han vandret mot meg over den endeløse stranden. Da han
+kom nærmere, kunne jeg se at han kastet sjøstjerner, som var etterlatt
+i sanden av tidevannet, tilbake i havet. Da han var nær nok spurte jeg
+ham hvorfor han jobbet så hardt på denne merkelige oppgaven. Han sa at
+solen snart ville stå opp og tørke sjøstjernene slik at de ville
+dø.</p>
+
+<p>Jeg sa til ham at dette var helt meningsløst. Det var kilometer på
+kilometer med strand, og det lå sjøstjerner hele veien. En person
+alene kunne ikke gjøre noen forskjell. Han smilte da han plukket opp
+neste sjøstjerne. Mens han kastet den så langt ut i havet som han
+klarte sa han, «for denne gjør det en forskjell». Jeg droppet
+skrivingen og tilbrakte resten av morgenen med å kaste
+sjøstjerner.</p>
+
+<p>- Loren Eiseley</p>
+</blockquote>
+
+<p>Kanskje noe du også kan ha glede av å tenke på når ting virker
+håpløst?</p>
+
+<p>Teksten er gjengitt og oversatt basert på utgaven på Good Read,
+uten tillatelse fra noen andre enn meg selv. Jeg håper på tilgivelse,
+hvis det er et problem for noen, da det er gjort i beste mening. Hvis
+eventuell rettighetshaver tar kontakt vil jeg fjerne teksten og i
+stedet legge ut henvendelsen der teksten kreves fjernet.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>Artikkel om Nikita i Arkheion nummer 2019/2</title>
+ <link>http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html</guid>
+ <pubDate>Mon, 9 Dec 2019 15:05:00 +0100</pubDate>
+ <description><p>Jeg hadde i dag gleden av å oppdage at en artikkel om
+<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">arkivsystemet
+Nikita</a> som vi skrev i sommer, nå er publisert i
+<a href="http://www.arkheion.no/">Arkheion, fagtidsskrift for kommunial
+arkivsektor</a>. Du finner artikkelen på side 30-33 i nummer 2019/2,
+PDF kan lastes ned fra nettstedet til tidsskriftet. Kanskje
+publiseringen kan føre til at noen flere får øynene opp for verdien av
+et åpent standardisert API for arkivering og søk i arkivet.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>When terms and policy turn users away</title>
+ <link>http://people.skolelinux.org/pere/blog/When_terms_and_policy_turn_users_away.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/When_terms_and_policy_turn_users_away.html</guid>
+ <pubDate>Sat, 7 Dec 2019 21:15:00 +0100</pubDate>
+ <description><p>When asked to accept terms of use and privacy policies that state
+it will to remove rights I otherwise had or accept unreasonable terms
+undermining my privacy, I choose away the service. I simply do not
+have the conscience to accept terms I have no indention of upholding.
+But how are the system and service providers to know how many people
+they scared away? Normally I just quietly walk away. But today, I
+tried a new approach. I sent the following email (removing the
+specifics, as I am not out to take the specific service in question)
+to the service provider I decided to not use, to at least give them
+one data point on how many users are unhappy with their terms:</p>
+
+<blockquote>
+From: Petter Reinholdtsen
+<br>Subject: When terms of use turn users away
+<br>To: [contact@some.site]
+<br>Date: Sat, 07 Dec 2019 16:30:56 +0100
+
+<p>Dear [Site Owner],</p>
+
+<p>I was eager to test the system, as it seemed like a fun and
+interesting application of [some] technology, but after reading the
+terms of use and privacy policy on &lt;URL:
+https://www.[some.site]/terms-of-use &gt; and &lt;URL:
+https://www.[some.site]/privacy-policy &gt; I want you to know that I
+decided to turn away. There were several provisions in the terms and
+policy turning me off, but the final term that convinced me was being
+asked to sign away my right to reverse engineer.</p>
+
+<p>--
+<br>Happy hacking
+<br>Petter Reinholdtsen</p>
+</blockquote>
+
+<p>I do not expect much to come out of it, but sharing it here in case
+others want to give something similar a try too. If companies
+discover their terms scare away enough people, perhaps they will be
+improved...</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
<item>
<title>What would it cost to store all 2018 phone calls in Norway?</title>
<link>http://people.skolelinux.org/pere/blog/What_would_it_cost_to_store_all_2018_phone_calls_in_Norway_.html</link>
</description>
</item>
- <item>
- <title>Jami/Ring, finally functioning peer to peer communication client</title>
- <link>http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html</guid>
- <pubDate>Wed, 19 Jun 2019 08:50:00 +0200</pubDate>
- <description><p>Some years ago, in 2016, I
-<a href="http://people.skolelinux.org/pere/blog/Experience_and_updated_recipe_for_using_the_Signal_app_without_a_mobile_phone.html">wrote
-for the first time about</a> the Ring peer to peer messaging system.
-It would provide messaging without any central server coordinating the
-system and without requiring all users to register a phone number or
-own a mobile phone. Back then, I could not get it to work, and put it
-aside until it had seen more development. A few days ago I decided to
-give it another try, and am happy to report that this time I am able
-to not only send and receive messages, but also place audio and video
-calls. But only if UDP is not blocked into your network.</p>
-
-<p>The Ring system changed name earlier this year to
-<a href="https://en.wikipedia.org/wiki/Jami_(software)">Jami</a>. I
-tried doing web search for 'ring' when I discovered it for the first
-time, and can only applaud this change as it is impossible to find
-something called Ring among the noise of other uses of that word. Now
-you can search for 'jami' and this client and
-<a href="https://jami.net/">the Jami system</a> is the first hit at
-least on duckduckgo.</p>
-
-<p>Jami will by default encrypt messages as well as audio and video
-calls, and try to send them directly between the communicating parties
-if possible. If this proves impossible (for example if both ends are
-behind NAT), it will use a central SIP TURN server maintained by the
-Jami project. Jami can also be a normal SIP client. If the SIP
-server is unencrypted, the audio and video calls will also be
-unencrypted. This is as far as I know the only case where Jami will
-do anything without encryption.</p>
-
-<p>Jami is available for several platforms: Linux, Windows, MacOSX,
-Android, iOS, and Android TV. It is included in Debian already. Jami
-also work for those using F-Droid without any Google connections,
-while Signal do not.
-<a href="https://git.jami.net/savoirfairelinux/ring-project/wikis/technical/Protocol">The
-protocol</a> is described in the Ring project wiki. The system uses a
-distributed hash table (DHT) system (similar to BitTorrent) running
-over UDP. On one of the networks I use, I discovered Jami failed to
-work. I tracked this down to the fact that incoming UDP packages
-going to ports 1-49999 were blocked, and the DHT would pick a random
-port and end up in the low range most of the time. After talking to
-the developers, I solved this by enabling the dhtproxy in the
-settings, thus using TCP to talk to a central DHT proxy instead of
-
-peering directly with others. I've been told the developers are
-working on allowing DHT to use TCP to avoid this problem. I also ran
-into a problem when trying to talk to the version of Ring included in
-Debian Stable (Stretch). Apparently the protocol changed between
-beta2 and the current version, making these clients incompatible.
-Hopefully the protocol will not be made incompatible in the
-future.</p>
-
-<p>It is worth noting that while looking at Jami and its features, I
-came across another communication platform I have not tested yet. The
-<a href="https://en.wikipedia.org/wiki/Tox_(protocol)">Tox protocol</a>
-and <a href="https://tox.chat/">family of Tox clients</a>. It might
-become the topic of a future blog post.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>More sales number for my Free Culture paper editions (2019-edition)</title>
- <link>http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</guid>
- <pubDate>Tue, 11 Jun 2019 16:05:00 +0200</pubDate>
- <description><p>The first book I published,
-<a href="http://www.free-culture.cc/">Free Culture by Lawrence
-Lessig</a>, is still selling a few copies. Not a lot, but enough to
-have contributed slightly over $500 to the <a
-href="https://creativecommons.org/">Creative Commons Corporation</a>
-so far. All the profit is sent there. Most books are still sold via
-Amazon (83 copies), with Ingram second (49) and Lulu (12) and Machette (7) as
-minor channels. Bying directly from Lulu bring the largest cut to
-Creative Commons. The English Edition sold 80 copies so far, the
-French 59 copies, and Norwegian only 8 copies. Nothing impressive,
-but nice to see the work we put down is still being appreciated. The
-ebook edition is available for free from
-<a href="https://github.com/petterreinholdtsen/free-culture-lessig">Github</a>.</p>
-
-<table border="0">
-<tr><th rowspan="2" valign="bottom">Title / language</th>
-<th colspan="7">Quantity</th></tr>
-<tr>
-<th>2016 jan-jun</th>
-<th>2016 jul-dec</th>
-<th>2017 jan-jun</th>
-<th>2017 jul-dec</th>
-<th>2018 jan-jun</th>
-<th>2018 jul-dec</th>
-<th>2019 jan-may</th>
-</tr>
-
-<tr>
- <td><a href="http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html">Culture Libre / French</a></td>
- <td align="right">3</td>
- <td align="right">6</td>
- <td align="right">19</td>
- <td align="right">11</td>
- <td align="right">7</td>
- <td align="right">6</td>
- <td align="right">7</td>
-</tr>
-
-<tr>
- <td><a href="http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html">Fri kultur / Norwegian</a></td>
- <td align="right">7</td>
- <td align="right">1</td>
- <td align="right">0</td>
- <td align="right">0</td>
- <td align="right">0</td>
- <td align="right">0</td>
- <td align="right">0</td>
-</tr>
-
-<tr>
- <td><a href="http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html">Free Culture / English</a></td>
- <td align="right">14</td>
- <td align="right">27</td>
- <td align="right">16</td>
- <td align="right">9</td>
- <td align="right">3</td>
- <td align="right">7</td>
- <td align="right">3</td>
-</tr>
-
-<tr>
- <td>Total</td>
- <td align="right">24</td>
- <td align="right">34</td>
- <td align="right">35</td>
- <td align="right">20</td>
- <td align="right">10</td>
- <td align="right">13</td>
- <td align="right">10</td>
-</tr>
-
-</table>
-
-<p>It is fun to see the French edition being more popular than the
-English one.</p>
-
-<p>If you would like to translate and publish the book in your native
-language, I would be happy to help make it happen. Please get in
-touch.</p>
-</description>
- </item>
-
- <item>
- <title>Official MIME type "text/vnd.sosi" for SOSI map data</title>
- <link>http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</guid>
- <pubDate>Tue, 4 Jun 2019 09:20:00 +0200</pubDate>
- <description><p>Just 15 days ago,
-<ahref="http://people.skolelinux.org/pere/blog/MIME_type__text_vnd_sosi__for_SOSI_map_data.html">I
-mentioned</a> my submission to IANA to register an official MIME type
-for the SOSI vector map format. This morning, just an hour ago, I was
-notified that
-<a href="https://www.iana.org/assignments/media-types/text/vnd.sosi">the
-MIME type "text/vnd.sosi"</a> is registered for this format. In
-addition to this registration, my
-<a href="https://github.com/file/file/blob/master/magic/Magdir/sosi">file(1)
-patch for a pattern matching rule for SOSI files</a> has been accepted
-into the official source of that program (pending a new release), and
-I've been told by the team behind
-<a href="https://www.nationalarchives.gov.uk/PRONOM/">PRONOM</a> that
-the SOSI format will be included in the next release of PRONOM, which
-they plan to release this summer around July.</p>
-
-<p>I am very happy to see all of this fall into place, for use by
-<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard/">the
-Noark 5 Tjenestegrensesnitt</a> implementations.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>The space rover coquine, or how I ended up on the dark side of the moon</title>
- <link>http://people.skolelinux.org/pere/blog/The_space_rover_coquine__or_how_I_ended_up_on_the_dark_side_of_the_moon.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_space_rover_coquine__or_how_I_ended_up_on_the_dark_side_of_the_moon.html</guid>
- <pubDate>Sun, 2 Jun 2019 23:55:00 +0200</pubDate>
- <description><p>A while back a college and friend from Debian and the Skolelinux /
-Debian Edu project approached me, asking if I knew someone that might
-be interested in helping out with a technology project he was running
-as a teacher at <a href="https://www.ecolefrancodanoise.dk/">L'école
-franco-danoise</a> - the Danish-French school and kindergarden. The
-kids were building robots, rovers. The story behind it is to build a
-rover for use
-<a href="http://blog.ecolefrancodanoise.dk/first-week-on-the-dark-side">on
-the dark side of the moon</a>, and remote control it. As travel cost
-was a bit high for the final destination, and they wanted to test the
-concept first, he was looking for volunteers to host a rover for the
-kids to control in a foreign country. I ended up volunteering as a
-host, and last week the rover arrived. It took a while to arrive
-after <a href="http://blog.ecolefrancodanoise.dk/model-moms">it was
-built and shipped</a>, because of customs confusion. Luckily we were
-able fix it quickly with help from my colleges at work.</p>
-
-<p>This is what it looked like when the rover arrived. Note the cute
-eyes looking up on me from the wrapping</p>
-
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-esken-med-det-rare-i.jpeg" width="32%" style="clear:left"/>
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-den-ser-meg.jpeg" width="32%" style="clear:left"/>
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-en-skrue-loes.jpeg" width="32%" style="clear:left"/>
-
-<p style="text-align:left">Once the robot arrived, we needed to track
-down batteries and figure out how to build custom firmware for it with
-the appropriate wifi settings. I asked a friend if I could get two
-18650 batteries from his pile of Tesla batteries (he had them from the
-wrack of a crashed Tesla), so now the rover is running on Tesla
-batteries.</p>
-
-<p>Building
-<a href="https://gitlab.com/ecolefrancodanoise/arduino-efd/">the rover
-firmware</a> proved a bit harder, as the code did not work out of the
-box with the Arduino IDE package in Debian Buster. I suspect this is
-due to a unsolved
-<a href="https://github.com/arduino/Arduino/pull/2703"> license problem
-with arduino</a> blocking Debian from upgrading to the latest version.
-In the end we gave up debugging why the IDE failed to find the
-required libraries, and ended up using the Arduino Makefile from the
-<a href="https://tracker.debian.org/pkg/arduino-mk">arduino-mk Debian
-package</a> instead. Unfortunately the camera library is missing from
-the Arduino environment in Debian, so we disabled the camera support
-for the first firmware build, to get something up and running. With
-this reduced firmware, the robot could be controlled via the
-controller server, driving around and measuring distance using its
-internal acoustic sensor.</p>
-
-<p>Next, With some help from my friend in Denmark, which checked in the
-camera library into the gitlab repository for me to use, we were able
-to build a new and more complete version of the firmware, and the
-robot is now up and running. This is what the "commander" web page
-look like after taking a measurement and a snapshot:</p>
-
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-commander.png" width="40%" border="1" align="center"/>
-
-<p>If you want to learn more about this project, you can check out the
-<a href="https://hackaday.io/project/164082-the-dark-side-challenge">The
-Dark Side Challenge</a> Hackaday web pages.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
</channel>
</rss>
projects / homepage.git / blobdiff