<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Measuring_the_speaker_frequency_response_using_the_AUDMES_free_software_GUI___nice_free_software.html">Measuring the speaker frequency response using the AUDMES free software GUI - nice free software</a></div>
- <div class="date">22nd October 2018</div>
- <div class="body"><p><img src="http://people.skolelinux.org/pere/blog/images/2018-10-22-audmes-measure-speakers.png" align="right" width="40%"/></p>
-
-<p>My current home stereo is a patchwork of various pieces I got on
-flee markeds over the years. It is amazing what kind of equipment
-show up there. I've been wondering for a while if it was possible to
-measure how well this equipment is working together, and decided to
-see how far I could get using free software. After trawling the web I
-came across an article from DIY Audio and Video on
-<a href="https://www.diyaudioandvideo.com/Tutorial/SpeakerResponseTesting/">Speaker
-Testing and Analysis</a> describing how to test speakers, and it listing
-several software options, among them
-<a href="https://sourceforge.net/projects/audmes/">AUDio MEasurement
-System (AUDMES)</a>. It is the only free software system I could find
-focusing on measuring speakers and audio frequency response. In the
-process I also found an interesting article from NOVO on
-<a href="http://novo.press/understanding-speaker-specifications-and-frequency-response/">Understanding
-Speaker Specifications and Frequency Response</a> and an article from
-ecoustics on
-<a href="https://www.ecoustics.com/articles/understanding-speaker-frequency-response/">Understanding
-Speaker Frequency Response</a>, with a lot of information on what to
-look for and how to interpret the graphs. Armed with this knowledge,
-I set out to measure the state of my speakers.</p>
-
-<p>The first hurdle was that AUDMES hadn't seen a commit for 10 years
-and did not build with current compilers and libraries. I got in
-touch with its author, who no longer was spending time on the program
-but gave me write access to the subversion repository on Sourceforge.
-The end result is that now the code build on Linux and is capable of
-saving and loading the collected frequency response data in CSV
-format. The application is quite nice and flexible, and I was able to
-select the input and output audio interfaces independently. This made
-it possible to use a USB mixer as the input source, while sending
-output via my laptop headphone connection. I lacked the hardware and
-cabling to figure out a different way to get independent cabling to
-speakers and microphone.</p>
-
-<p>Using this setup I could see how a large range of high frequencies
-apparently were not making it out of my speakers. The picture show
-the frequency response measurement of one of the speakers. Note the
-frequency lines seem to be slightly misaligned, compared to the CSV
-output from the program. I can not hear several of these are high
-frequencies, according to measurement from
-<a href="http://freehearingtestsoftware.com">Free Hearing Test
-Software</a>, an freeware system to measure your hearing (still
-looking for a free software alternative), so I do not know if they are
-coming out out the speakers. I thus do not quite know how to figure
-out if the missing frequencies is a problem with the microphone, the
-amplifier or the speakers, but I managed to rule out the audio card in my
-PC by measuring my Bose noise canceling headset using its own
-microphone. This setup was able to see the high frequency tones, so
-the problem with my stereo had to be in the amplifier or speakers.</p>
-
-<p>Anyway, to try to role out one factor I ended up picking up a new
-set of speakers at a flee marked, and these work a lot better than the
-old speakers, so I guess the microphone and amplifier is OK. If you
-need to measure your own speakers, check out AUDMES. If more people
-get involved, perhaps the project could become good enough to include
-in Debian? And if you know of some other free software to measure
-speakers and amplifier performance, please let me know. I am aware of
-the freeware option <a href="https://www.roomeqwizard.com/">REW</a>,
-but I want something that can be developed also when the vendor
-looses interest.</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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Totaloverv_kning_av_innbyggernes_bevegelser___nei_takk_.html">Totalovervåkning av innbyggernes bevegelser - nei takk!</a></div>
+ <div class="date">16th April 2020</div>
+ <div class="body"><p>Jeg er blitt spurt hva jeg synes om lansering av smittestopp-appen,
+overvåkningsløsningen lansert av Folkehelseinstituttet,
+Simula-senteret og Regjeringen i dag, fulgt av klare trusler fra
+regjeringen om konsekvenser hvis befolkningen ikke tar den i bruk.
+Rekker ikke skrive noe fyldig om temaet, men det er klart for meg at
+den utraderer retten til privatliv samt utgjør en personlig
+sikkerhetsrisiko for alle som tar den i bruk. Bare det er nok til at
+det fremstår som en svert dårlig ide å bli med på denne "dugnaden".
+Det finnes andre og bedre tilnærminger enn den valgt av FHI. Har de
+valgt den for å sikre seg nok et datasett i den fremtidige
+ehelse-portalen? Potensialet for misbruk av informasjon samlet inn av
+appen er for stort, effekten på neste krise for klar og gevinsten for
+liten.</p>
+
+<p>For å si det med forhenværende leder i Datatilsynet, Georg Apenes,
+som skrev i en kronikk den gang Datatilsynet vernet
+privatsfæren at
+«<a href="https://www.dagbladet.no/kultur/rent-mel-i-bilen/66333882">SENTRALT
+I en liberal forestillingsverden finner vi aksept av borgerens rett
+til å kunne velge å være i fred; å være u-iakttatt, uregistrert og
+anonym</a>». Det er ikke uten grunn han startet kronikken med
+«Personvern et fremmedord i enkelte av de statsorganene som samler
+inn, oppbevarer og bruker personopplysninger». Der har nok
+statsorganene bare blitt dårligere på 13 år.</p>
+
+<p>Det er jo også verdt å merke seg at personvernrådet i EU (EDPB)
+mener smittestopp-appen
+<a href="https://nrkbeta.no/2020/04/16/personvernrad-i-eu-mener-norsk-app-bryter-med-viktig-personvernprinsipp/">opererer
+i strid med prinsippet om dataminimering</a>. Også de ser at det
+finnes mye bedre måter å gjøre dette på.</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>
</div>
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Web_browser_integration_of_VLC_with_Bittorrent_support.html">Web browser integration of VLC with Bittorrent support</a></div>
- <div class="date">21st October 2018</div>
- <div class="body"><p>Bittorrent is as far as I know, currently the most efficient way to
-distribute content on the Internet. It is used all by all sorts of
-content providers, from national TV stations like
-<a href="https://www.nrk.no/">NRK</a>, Linux distributors like
-<a href="https://www.debian.org/">Debian</a> and
-<a href="https://www.ubuntu.com/">Ubuntu</a>, and of course the
-<a href="https://archive.org/">Internet archive</A>.
-
-<p>Almost a month ago
-<a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">a new
-package adding Bittorrent support to VLC</a> became available in
-Debian testing and unstable. To test it, simply install it like
-this:</p>
-
-<p><pre>
-apt install vlc-plugin-bittorrent
-</pre></p>
-
-<p>Since the plugin was made available for the first time in Debian,
-several improvements have been made to it. In version 2.2-4, now
-available in both testing and unstable, a desktop file is provided to
-teach browsers to start VLC when the user click on torrent files or
-magnet links. The last part is thanks to me finally understanding
-what the strange x-scheme-handler style MIME types in desktop files
-are used for. By adding x-scheme-handler/magnet to the MimeType entry
-in the desktop file, at least the browsers Firefox and Chromium will
-suggest to start VLC when selecting a magnet URI on a web page. The
-end result is that now, with the plugin installed in Buster and Sid,
-one can visit any
-<a href="https://archive.org/details/CopyingIsNotTheft1080p">Internet
-Archive page with movies</a> using a web browser and click on the
-torrent link to start streaming the movie.</p>
-
-<p>Note, there is still some misfeatures in the plugin. One is the
-fact that it will hang and
-<a href="https://github.com/johang/vlc-bittorrent/issues/13">block VLC
-from exiting until the torrent streaming starts</a>. Another is the
-fact that it
-<a href="https://github.com/johang/vlc-bittorrent/issues/9">will pick
-and play a random file in a multi file torrent</a>. This is not
-always the video file you want. Combined with the first it can be a
-bit hard to get the video streaming going. But when it work, it seem
-to do a good job.</p>
-
-<p>For the Debian packaging, I would love to find a good way to test
-if the plugin work with VLC using autopkgtest. I tried, but do not
-know enough of the inner workings of VLC to get it working. For now
-the autopkgtest script is only checking if the .so file was
-successfully loaded by VLC. If you have any suggestions, please
-submit a patch to the Debian bug tracking system.</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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Ny_URL_til_den_frie_norske_stavekontrollen.html">Ny URL til den frie norske stavekontrollen</a></div>
+ <div class="date">21st March 2020</div>
+ <div class="body"><p>Det er lenge siden jeg har sett på den norske stavekontrollen, sist
+jeg skrev om temaet var i 2016, og i mellomtiden har nettstedet
+no.speling.org forsvunnet, og både git-depotet på Alioth og
+mailman-tjenesten som hadde epostlistene for oversettelser blitt lagt
+ned. Men bokmål og nynorsk trenger fortsatt stavekontroll, så etter
+et par purringer fra en som har lyst til å forbedre stavekontrollen
+har jeg endelig fått lagt ut ny offentlig kopi av git-depotet. Jeg
+valgte gitlab foran github.. Siste utgave av stavekontrollen kan
+hentes ned fra
+<a href="https://gitlab.com/norwegian-language-tools/spell-norwegian">https://gitlab.com/norwegian-language-tools/spell-norwegian</a>.
+Ingen ny versjon i denne omgang altså, bare et nytt sted å samle
+forbedringer til den frie norske stavekontrollen. :)
+
+<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>
</div>
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Release_0_2_of_free_software_archive_system_Nikita_announced.html">Release 0.2 of free software archive system Nikita announced</a></div>
- <div class="date">18th October 2018</div>
- <div class="body"><p>This morning, the new release of the
-<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita
-Noark 5 core project</a> was
-<a href="https://lists.nuug.no/pipermail/nikita-noark/2018-October/000406.html">announced
-on the project mailing list</a>. The free software solution is an
-implementation of the Norwegian archive standard Noark 5 used by
-government offices in Norway. These were the changes in version 0.2
-since version 0.1.1 (from NEWS.md):
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Nikita_version_0_5_released___updated_free_software_archive_API_server.html">Nikita version 0.5 released - updated free software archive API server</a></div>
+ <div class="date"> 2nd March 2020</div>
+ <div class="body"><p>Today, after many months of development, a new release of
+<ahref="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita
+Noark 5 core project</a> was finally
+<ahref="https://lists.nuug.no/pipermail/nikita-noark/2020-March/000519.html">announced
+on the project mailing list</a>. The Nikita free software solution is
+an implementation of the Norwegian archive standard Noark 5 used by
+government offices in Norway. These were the changes in version 0.5
+since version 0.4, see the email link above for links to a demo
+site:</p>
<ul>
- <li>Fix typos in REL names</li>
- <li>Tidy up error message reporting</li>
- <li>Fix issue where we used Integer.valueOf(), not Integer.getInteger()</li>
- <li>Change some String handling to StringBuffer</li>
- <li>Fix error reporting</li>
- <li>Code tidy-up</li>
- <li>Fix issue using static non-synchronized SimpleDateFormat to avoid
- race conditions</li>
- <li>Fix problem where deserialisers were treating integers as strings</li>
- <li>Update methods to make them null-safe</li>
- <li>Fix many issues reported by coverity</li>
- <li>Improve equals(), compareTo() and hash() in domain model</li>
- <li>Improvements to the domain model for metadata classes</li>
- <li>Fix CORS issues when downloading document</li>
- <li>Implementation of case-handling with registryEntry and document upload</li>
- <li>Better support in Javascript for OPTIONS</li>
- <li>Adding concept description of mail integration</li>
- <li>Improve setting of default values for GET on ny-journalpost</li>
- <li>Better handling of required values during deserialisation </li>
- <li>Changed tilknyttetDato (M620) from date to dateTime</li>
- <li>Corrected some opprettetDato (M600) (de)serialisation errors.</li>
- <li>Improve parse error reporting.</li>
- <li>Started on OData search and filtering.</li>
- <li>Added Contributor Covenant Code of Conduct to project.</li>
- <li>Moved repository and project from Github to Gitlab.</li>
- <li>Restructured repository, moved code into src/ and web/.</li>
- <li>Updated code to use Spring Boot version 2.</li>
- <li>Added support for OAuth2 authentication.</li>
- <li>Fixed several bugs discovered by Coverity.</li>
- <li>Corrected handling of date/datetime fields.</li>
- <li>Improved error reporting when rejecting during deserializatoin.</li>
- <li>Adjusted default values provided for ny-arkivdel, ny-mappe,
- ny-saksmappe, ny-journalpost and ny-dokumentbeskrivelse.</li>
- <li>Several fixes for korrespondansepart*.</li>
- <li>Updated web GUI:
- <ul>
- <li>Now handle both file upload and download.</li>
- <li>Uses new OAuth2 authentication for login.</li>
- <li>Forms now fetches default values from API using GET.</li>
- <li>Added RFC 822 (email), TIFF and JPEG to list of possible file formats.</li>
- </ul></li>
-</ul>
-<p>The changes and improvements are extensive. Running diffstat on
-the changes between git tab 0.1.1 and 0.2 show 1098 files changed,
-108666 insertions(+), 54066 deletions(-).</p>
+ <li>Updated to Noark 5 versjon 5.0 API specification.
+ <ul>
+ <li>Changed formatting of _links from [] to {} to match IETF draft
+ on JSON HAL.</li>
+ <li>Merged Registrering og Basisregistrering in version 4 to
+ combined Registrering.</li>
+ <li>DokumentObjekt is now subtype of ArkivEnhet.</li>
+ <li>Introducing new entity Arkivnotat.</li>
+ <li>Changed all relation keys to use /v5/ instead of /v4/.</li>
+ <li>Corrected to use new official relation keys when possible.</li>
+ <li>Renamed Sakspart to Part and connect it to Mappe, Registrering
+ and Dokumentbeskrivelse instead of only Saksmappe.</li>
+ <li>Moved Korrespondansepart connection from Journalpost to
+ Registrering.</li>
+ <li>Moved Part and Korrespondansepart from package sakarkiv to
+ arkivstruktur.</li>
+ <li>Renamed presedensstatus to presedensStatus.</li>
+ <li>Use new JSON content-type "application/vnd.noark5+json".</li>
+ <li>Updated prepopulated format list to use PRONOM codes.</li>
+ <li>Implemented endpoint for system information.</li>
+ <li>Implemented national identifiers for both file and record.</li>
+ <li>Implemented comments.</li>
+ <li>implemented sign off.</li>
+ <li>implemented conversion.</li>
+ </ul></li>
+ <li>Improved/implemented OData search and paging support for more entities.</li>
+ <li>No longer exposes attribute Dokumentobjekt.referanseDokumentfil,
+ one should use the relation in _links instead.</li>
+ <li>Corrected relation keys under
+ https://rel.arkivverket.no/noark5/v5/api/administrasjon/, replacing
+ 'administrasjon' with 'admin'.</li>
+ <li>Fixed several security and stability issues discovered by Coverity.</li>
+ <li>Corrected handling ETag errors, now return code 409.</li>
+ <li>Improved handling of Kryssreferanse.</li>
+ <li>Changed internal database model to use UUID/SystemID as primary keys
+ in tables.</li>
+ <li>Changed internal database table names to use package prefix.</li>
+ <li>Changed time zone handling for date and datetime attributes, to be
+ more according to the new definition in the API specification.</li>
+ <li>Change revoke-token to only drop token on POST requests, not GET.</li>
+ <li>Updated to newer Spring version.</li>
+ <li>Changed primary key and URL component for metadata code lists to
+ use the 'kode' value instead of a SystemID.</li>
+ <li>Corrected implementation of Part and Sakspart.</li>
+ <li>Changed instance lists with subtypes (like .../registrering/ and
+ .../mappe/) to include the attributes and _links entries for the
+ subtype in the supertype lists.</li>
+ <li>Adjusted _links relations to make it possible to figure out the
+ entity of an instance using the self->href->relation key lookup
+ method.</li>
+ <li>Fixed several end points to make sure GET, PUT, POST and DELETE
+ match each other.</li>
+ <li>Updated DELETE endpoints to work with UUID based entity
+ identifiers.</li>
+ <li>Restructured code to use more common URL related constants in entry
+ point values and replace @RequestMapping with method specific
+ annotations.</li>
+ <li>Added first unit test code.</li>
+ <li>Updated web GUI to work with the updated API.</li>
+ <li>Changed integer fields, enforce them as numeric.</li>
+ <li>Rewrote and simplify metadata handling to use common service and
+ controller code instead of duplicating for each type.</li>
+ <li>Implemented the remaining metadata types.</li>
+ <li>Changed Country list source from Wikipedia to Debian iso-codes and
+ updated the list of Countries.</li>
+ <li>Many many corrections and improvements.</li>
+
+</ul>
<p>If free and open standardized archiving API sound interesting to
you, please contact us on IRC
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/n
oark5">noark5</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Fetching_trusted_timestamps_using_the_rfc3161ng_python_module.html">Fetching trusted timestamps using the rfc3161ng python module</a></div>
- <div class="date"> 8th October 2018</div>
- <div class="body"><p>I have earlier covered the basics of trusted timestamping using the
-'openssl ts' client. See blog post for
-<a href="http://people.skolelinux.org/pere/blog/Public_Trusted_Timestamping_services_for_everyone.html">2014</a>,
-<a href="http://people.skolelinux.org/pere/blog/syslog_trusted_timestamp___chain_of_trusted_timestamps_for_your_syslog.html">2016</a>
-and
-<a href="http://people.skolelinux.org/pere/blog/Idea_for_storing_trusted_timestamps_in_a_Noark_5_archive.html">2017</a>
-for those stories. But some times I want to integrate the timestamping
-in other code, and recently I needed to integrate it into Python.
-After searching a bit, I found
-<a href="https://dev.entrouvert.org/projects/python-rfc3161">the
-rfc3161 library</a> which seemed like a good fit, but I soon
-discovered it only worked for python version 2, and I needed something
-that work with python version 3. Luckily I next came across
-<a href="https://github.com/trbs/rfc3161ng/">the rfc3161ng library</a>,
-a fork of the original rfc3161 library. Not only is it working with
-python 3, it have fixed a few of the bugs in the original library, and
-it has an active maintainer. I decided to wrap it up and make it
-<a href="https://tracker.debian.org/pkg/python-rfc3161ng">available in
-Debian</a>, and a few days ago it entered Debian unstable and testing.</p>
-
-<p>Using the library is fairly straight forward. The only slightly
-problematic step is to fetch the required certificates to verify the
-timestamp. For some services it is straight forward, while for others
-I have not yet figured out how to do it. Here is a small standalone
-code example based on of the integration tests in the library code:</p>
-
-<pre>
-#!/usr/bin/python3
-
-"""
-
-Python 3 script demonstrating how to use the rfc3161ng module to
-get trusted timestamps.
-
-The license of this code is the same as the license of the rfc3161ng
-library, ie MIT/BSD.
-
-"""
-
-import os
-import pyasn1.codec.der
-import rfc3161ng
-import subprocess
-import tempfile
-import urllib.request
-
-def store(f, data):
- f.write(data)
- f.flush()
- f.seek(0)
-
-def fetch(url, f=None):
- response = urllib.request.urlopen(url)
- data = response.read()
- if f:
- store(f, data)
- return data
-
-def main():
- with tempfile.NamedTemporaryFile() as cert_f,\
- tempfile.NamedTemporaryFile() as ca_f,\
- tempfile.NamedTemporaryFile() as msg_f,\
- tempfile.NamedTemporaryFile() as tsr_f:
-
- # First fetch certificates used by service
- certificate_data = fetch('https://freetsa.org/files/tsa.crt', cert_f)
- ca_data_data = fetch('https://freetsa.org/files/cacert.pem', ca_f)
-
- # Then timestamp the message
- timestamper = \
- rfc3161ng.RemoteTimestamper('http://freetsa.org/tsr',
- certificate=certificate_data)
- data = b"Python forever!\n"
- tsr = timestamper(data=data, return_tsr=True)
-
- # Finally, convert message and response to something 'openssl ts' can verify
- store(msg_f, data)
- store(tsr_f, pyasn1.codec.der.encoder.encode(tsr))
- args = ["openssl", "ts", "-verify",
- "-data", msg_f.name,
- "-in", tsr_f.name,
- "-CAfile", ca_f.name,
- "-untrusted", cert_f.name]
- subprocess.check_call(args)
-
-if '__main__' == __name__:
- main()
-</pre>
-
-<p>The code fetches the required certificates, store them as temporary
-files, timestamp a simple message, store the message and timestamp to
-disk and ask 'openssl ts' to verify the timestamp. A timestamp is
-around 1.5 kiB in size, and should be fairly easy to store for future
-use.</p>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Blockchain_and_IoT_articles_accepted_into_Records_Management_Journal.html">Blockchain and IoT articles accepted into Records Management Journal</a></div>
+ <div class="date">27th February 2020</div>
+ <div class="body"><p>On Tuesday, two scietific articles we have been working on for a
+while, was finally accepted for publication into
+<a href="https://www.emerald.com/insight/publication/issn/0956-5698">Records
+Management Journal</a>. Still waiting for the assigned DOI urls to
+start working, but you can have a look at the LaTeX originals here.</p>
+
+<p>The first article is
+"<a href="http://people.skolelinux.org/pere/blog/images/2020-02-25-rmj-iot-record-keeping.pdf">A
+record-keeping approach to managing IoT-data for government
+agencies</a>" (<a href="https://doi.org/10.1108/RMJ-09-2019-0056">DOI
+10.1108/RMJ-09-2019-0056</a>) by Thomas Sødring, Petter Reinholdtsen
+and David Massey, and sketches some approaches for storing measurement
+data (aka Internet of Things sensor data) in a archive, thus providing
+a well defined mechanism for screening and deletion of the information </p>
+
+<p>The second article is
+"<a href="http://people.skolelinux.org/pere/blog/images/2020-02-25-rmj-block-chain-record-keeping.pdf">Publishing
+and using record-keeping structural information in a blockchain</a>"
+(<a href="https://doi.org/10.1108/RMJ-09-2019-0050">DOI
+10.1108/RMJ-09-2019-0050<a/>) by Thomas Sødring, Petter Reinholdtsen
+and Svein Ølnes, where we describe a way for third parties to validate
+authenticity and thus improve trust in the records kept in a
+archive.</p>
<p>As usual, if you use Bitcoin and want to show your support of my
activities, please send Bitcoin donations to my address
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Automatic_Google_Drive_sync_using_grive_in_Debian.html">Automatic Google Drive sync using grive in Debian</a></div>
- <div class="date"> 4th October 2018</div>
- <div class="body"><p>A few days, I rescued a Windows victim over to Debian. To try to
-rescue the remains, I helped set up automatic sync with Google Drive.
-I did not find any sensible Debian package handling this
-automatically, so I rebuild the grive2 source from
-<a href="http://www.webupd8.org/">the Ubuntu UPD8 PPA</a> to do the
-task and added a autostart desktop entry and a small shell script to
-run in the background while the user is logged in to do the sync.
-Here is a sketch of the setup for future reference.</p>
-
-<p>I first created <tt>~/googledrive</tt>, entered the directory and
-ran '<tt>grive -a</tt>' to authenticate the machine/user. Next, I
-created a autostart hook in <tt>~/.config/autostart/grive.desktop</tt>
-to start the sync when the user log in:</p>
-
-<p><blockquote><pre>
-[Desktop Entry]
-Name=Google drive autosync
-Type=Application
-Exec=/home/user/bin/grive-sync
-</pre></blockquote></p>
-
-<p>Finally, I wrote the <tt>~/bin/grive-sync</tt> script to sync
-~/googledrive/ with the files in Google Drive.</p>
-
-<p><blockquote><pre>
-#!/bin/sh
-set -e
-cd ~/
-cleanup() {
- if [ "$syncpid" ] ; then
- kill $syncpid
- fi
-}
-trap cleanup EXIT INT QUIT
-/usr/lib/grive/grive-sync.sh listen googledrive 2>&1 | sed "s%^%$0:%" &
-syncpdi=$!
-while true; do
- if ! xhost >/dev/null 2>&1 ; then
- echo "no DISPLAY, exiting as the user probably logged out"
- exit 1
- fi
- if [ ! -e /run/user/1000/grive-sync.sh_googledrive ] ; then
- /usr/lib/grive/grive-sync.sh sync googledrive
- fi
- sleep 300
-done 2>&1 | sed "s%^%$0:%"
-</pre></blockquote></p>
-
-<p>Feel free to use the setup if you want. It can be assumed to be
-GNU GPL v2 licensed (or any later version, at your leisure), but I
-doubt this code is possible to claim copyright on.</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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Redaksjon_p__plass_for_Noark_5_tjenestegrensesnitt.html">Redaksjon på plass for Noark 5 tjenestegrensesnitt</a></div>
+ <div class="date"> 5th February 2020</div>
+ <div class="body"><p>Arbeidet med å lage et godt, fritt og åpent standardisert maskinelt
+grensesnitt for arkivering, med tilhørende fri
+programvareimplementasjon fortsetter. Jeg snakker om
+<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard">Noark
+5 Tjenestegrensesnitt</a> og
+<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita</a>.
+Siste nytt etter
+<a href="https://www.nuug.no/aktiviteter/20200127-noark-seminar/">seminaret
+for noen dager siden</a>, er vi i Nikita-prosjektet har fått beskjed
+fra Arkivverket at det blir satt ned en redaksjon for å videreutvikle
+spesifikasjonen. Redaksjonen består av Mona Danielsen og Anne Sofie
+Knutsen ved arkivverket, Thomas Sødring ved OsloMet, og meg selv fra
+NUUG. De to sistenevnte tar seg av de åpenbare forbedringene, mens
+hele redaksjonen diskuterer tvilstilfeller. Jeg håper dette vil bidra
+til at vi lykkes i å gjøre denne protokollspesifikasjonen så entydig
+og klar at den vil bidra til et velfungerende marked for
+arkivsystemer, og sikre at programmer som trenger å snakke med
+arkivsystemet kan snakke med enhver implementasjon av
+API-spesifikasjonen. Nikita er den første implementasjonen, men det
+bør blir flere.</p>
+
+<p>Det gjenstår riktig nok endel før vi er i mål, selv om svært mye
+allerede er på plass. Med innspill og forslag til forbedringer fra
+alle som vil ha et leverandøruavhengig og fullstendig
+datamaskinlesbart grensesnitt til arkivet, så tror jeg vi vil
+lykkes.</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>
</div>
<div class="tags">
- 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>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5</a>, <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html">Valutakrambod - A python and bitcoin love story</a></div>
- <div class="date">29th September 2018</div>
- <div class="body"><p>It would come as no surprise to anyone that I am interested in
-bitcoins and virtual currencies. I've been keeping an eye on virtual
-currencies for many years, and it is part of the reason a few months
-ago, I started writing a python library for collecting currency
-exchange rates and trade on virtual currency exchanges. I decided to
-name the end result valutakrambod, which perhaps can be translated to
-small currency shop.</p>
-
-<p>The library uses the tornado python library to handle HTTP and
-websocket connections, and provide a asynchronous system for
-connecting to and tracking several services. The code is available
-from
-<a href="http://github.com/petterreinholdtsen/valutakrambod">github</a>.</p>
-
-</p>There are two example clients of the library. One is very simple and
-list every updated buy/sell price received from the various services.
-This code is started by running bin/btc-rates and call the client code
-in valutakrambod/client.py. The simple client look like this:</p>
-
-<p><blockquote><pre>
-import functools
-import tornado.ioloop
-import valutakrambod
-class SimpleClient(object):
- def __init__(self):
- self.services = []
- self.streams = []
- pass
- def newdata(self, service, pair, changed):
- print("%-15s %s-%s: %8.3f %8.3f" % (
- service.servicename(),
- pair[0],
- pair[1],
- service.rates[pair]['ask'],
- service.rates[pair]['bid'])
- )
- async def refresh(self, service):
- await service.fetchRates(service.wantedpairs)
- def run(self):
- self.ioloop = tornado.ioloop.IOLoop.current()
- self.services = valutakrambod.service.knownServices()
- for e in self.services:
- service = e()
- service.subscribe(self.newdata)
- stream = service.websocket()
- if stream:
- self.streams.append(stream)
- else:
- # Fetch information from non-streaming services immediately
- self.ioloop.call_later(len(self.services),
- functools.partial(self.refresh, service))
- # as well as regularly
- service.periodicUpdate(60)
- for stream in self.streams:
- stream.connect()
- try:
- self.ioloop.start()
- except KeyboardInterrupt:
- print("Interrupted by keyboard, closing all connections.")
- pass
- for stream in self.streams:
- stream.close()
-</pre></blockquote></p>
-
-<p>The library client loops over all known "public" services,
-initialises it, subscribes to any updates from the service, checks and
-activates websocket streaming if the service provide it, and if no
-streaming is supported, fetches information from the service and sets
-up a periodic update every 60 seconds. The output from this client
-can look like this:</p>
-
-<p><blockquote><pre>
-Bl3p BTC-EUR: 5687.110 5653.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Hitbtc BTC-USD: 6594.560 6593.690
-Hitbtc BTC-USD: 6594.560 6593.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Hitbtc BTC-USD: 6594.570 6593.690
-Bitstamp EUR-USD: 1.159 1.154
-Hitbtc BTC-USD: 6594.570 6593.690
-Hitbtc BTC-USD: 6594.580 6593.690
-Hitbtc BTC-USD: 6594.580 6593.690
-Hitbtc BTC-USD: 6594.580 6593.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Paymium BTC-EUR: 5680.000 5620.240
-</pre></blockquote></p>
-
-<p>The exchange order book is tracked in addition to the best buy/sell
-price, for those that need to know the details.</p>
-
-<p>The other example client is focusing on providing a curses view
-with updated buy/sell prices as soon as they are received from the
-services. This code is located in bin/btc-rates-curses and activated
-by using the '-c' argument. Without the argument the "curses" output
-is printed without using curses, which is useful for debugging. The
-curses view look like this:</p>
-
-<p><blockquote><pre>
- Name Pair Bid Ask Spr Ftcd Age
- BitcoinsNorway BTCEUR 5591.8400 5711.0800 2.1% 16 nan 60
- Bitfinex BTCEUR 5671.0000 5671.2000 0.0% 16 22 59
- Bitmynt BTCEUR 5580.8000 5807.5200 3.9% 16 41 60
- Bitpay BTCEUR 5663.2700 nan nan% 15 nan 60
- Bitstamp BTCEUR 5664.8400 5676.5300 0.2% 0 1 1
- Bl3p BTCEUR 5653.6900 5684.9400 0.5% 0 nan 19
- Coinbase BTCEUR 5600.8200 5714.9000 2.0% 15 nan nan
- Kraken BTCEUR 5670.1000 5670.2000 0.0% 14 17 60
- Paymium BTCEUR 5620.0600 5680.0000 1.1% 1 7515 nan
- BitcoinsNorway BTCNOK 52898.9700 54034.6100 2.1% 16 nan 60
- Bitmynt BTCNOK 52960.3200 54031.1900 2.0% 16 41 60
- Bitpay BTCNOK 53477.7833 nan nan% 16 nan 60
- Coinbase BTCNOK 52990.3500 54063.0600 2.0% 15 nan nan
- MiraiEx BTCNOK 52856.5300 54100.6000 2.3% 16 nan nan
- BitcoinsNorway BTCUSD 6495.5300 6631.5400 2.1% 16 nan 60
- Bitfinex BTCUSD 6590.6000 6590.7000 0.0% 16 23 57
- Bitpay BTCUSD 6564.1300 nan nan% 15 nan 60
- Bitstamp BTCUSD 6561.1400 6565.6200 0.1% 0 2 1
- Coinbase BTCUSD 6504.0600 6635.9700 2.0% 14 nan 117
- Gemini BTCUSD 6567.1300 6573.0700 0.1% 16 89 nan
- Hitbtc+BTCUSD 6592.6200 6594.2100 0.0% 0 0 0
- Kraken BTCUSD 6565.2000 6570.9000 0.1% 15 17 58
- Exchangerates EURNOK 9.4665 9.4665 0.0% 16 107789 nan
- Norgesbank EURNOK 9.4665 9.4665 0.0% 16 107789 nan
- Bitstamp EURUSD 1.1537 1.1593 0.5% 4 5 1
- Exchangerates EURUSD 1.1576 1.1576 0.0% 16 107789 nan
- BitcoinsNorway LTCEUR 1.0000 49.0000 98.0% 16 nan nan
- BitcoinsNorway LTCNOK 492.4800 503.7500 2.2% 16 nan 60
- BitcoinsNorway LTCUSD 1.0221 49.0000 97.9% 15 nan nan
- Norgesbank USDNOK 8.1777 8.1777 0.0% 16 107789 nan
-</pre></blockquote></p>
-
-<p>The code for this client is too complex for a simple blog post, so
-you will have to check out the git repository to figure out how it
-work. What I can tell is how the three last numbers on each line
-should be interpreted. The first is how many seconds ago information
-was received from the service. The second is how long ago, according
-to the service, the provided information was updated. The last is an
-estimate on how often the buy/sell values change.</p>
-
-<p>If you find this library useful, or would like to improve it, I
-would love to hear from you. Note that for some of the services I've
-implemented a trading API. It might be 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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html">Artikkel om Noark 5 Tjenestegrensesnitt og Nikita i Arkivråd nummer 3 for 2019</a></div>
+ <div class="date">26th December 2019</div>
+ <div class="body"><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>
</div>
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5</a>, <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html">VLC in Debian now can do bittorrent streaming</a></div>
- <div class="date">24th September 2018</div>
- <div class="body"><p>Back in February, I got curious to see
-<a href="http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html">if
-VLC now supported Bittorrent streaming</a>. It did not, despite the
-fact that the idea and code to handle such streaming had been floating
-around for years. I did however find
-<a href="https://github.com/johang/vlc-bittorrent">a standalone plugin
-for VLC</a> to do it, and half a year later I decided to wrap up the
-plugin and get it into Debian. I uploaded it to NEW a few days ago,
-and am very happy to report that it
-<a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">entered
-Debian</a> a few hours ago, and should be available in Debian/Unstable
-tomorrow, and Debian/Testing in a few days.</p>
-
-<p>With the vlc-plugin-bittorrent package installed you should be able
-to stream videos using a simple call to</p>
-
-<p><blockquote><pre>
-vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent
-</pre></blockquote></p>
-
-</p>It can handle magnet links too. Now if only native vlc had
-bittorrent support. Then a lot more would be helping each other to
-share public domain and creative commons movies. The plugin need some
-stability work with seeking and picking the right file in a torrent
-with many files, but is already usable. Please note that the plugin
-is not removing downloaded files when vlc is stopped, so it can fill
-up your disk if you are not careful. Have fun. :)</p>
-
-<p>I would love to get help maintaining this package. Get in touch if
-you are interested.</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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html">Meningsløst, men for hvem...</a></div>
+ <div class="date">25th December 2019</div>
+ <div class="body"><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>
</div>
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html">Using the Kodi API to play Youtube videos</a></div>
- <div class="date"> 2nd September 2018</div>
- <div class="body"><p>I continue to explore my Kodi installation, and today I wanted to
-tell it to play a youtube URL I received in a chat, without having to
-insert search terms using the on-screen keyboard. After searching the
-web for API access to the Youtube plugin and testing a bit, I managed
-to find a recipe that worked. If you got a kodi instance with its API
-available from http://kodihost/jsonrpc, you can try the following to
-have check out a nice cover band.</p>
-
-<p><blockquote><pre>curl --silent --header 'Content-Type: application/json' \
- --data-binary '{ "id": 1, "jsonrpc": "2.0", "method": "Player.Open",
- "params": {"item": { "file":
- "plugin://plugin.video.youtube/play/?video_id=LuRGVM9O0qg" } } }' \
- http://projector.local/jsonrpc</pre></blockquote></p>
-
-<p>I've extended kodi-stream program to take a video source as its
-first argument. It can now handle direct video links, youtube links
-and 'desktop' to stream my desktop to Kodi. It is almost like a
-Chromecast. :)</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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html">Artikkel om Nikita i Arkheion nummer 2019/2</a></div>
+ <div class="date"> 9th December 2019</div>
+ <div class="body"><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>
</div>
<div class="tags">
- 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/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5</a>, <a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk</a>, <a href="http://people.skolelinux.org/pere/blog/tags/standard">standard</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Software_created_using_taxpayers__money_should_be_Free_Software.html">Software created using taxpayers’ money should be Free Software</a></div>
- <div class="date">30th August 2018</div>
- <div class="body"><p>It might seem obvious that software created using tax money should
-be available for everyone to use and improve. Free Software
-Foundation Europe recentlystarted a campaign to help get more people
-to understand this, and I just signed the petition on
-<a href="https://publiccode.eu/">Public Money, Public Code</a> to help
-them. I hope you too will do the same.</p>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/When_terms_and_policy_turn_users_away.html">When terms and policy turn users away</a></div>
+ <div class="date"> 7th December 2019</div>
+ <div class="body"><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 <URL:
+https://www.[some.site]/terms-of-use > and <URL:
+https://www.[some.site]/privacy-policy > 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>
</div>
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>.
</div>
<div class="padding"></div>
<div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/A_bit_more_on_privacy_respecting_health_monitor___fitness_tracker.html">A bit more on privacy respecting health monitor / fitness tracker</a></div>
- <div class="date">13th August 2018</div>
- <div class="body"><p>A few days ago, I wondered if there are any privacy respecting
-health monitors and/or fitness trackers available for sale these days.
-I would like to buy one, but do not want to share my personal data
-with strangers, nor be forced to have a mobile phone to get data out
-of the unit. I've received some ideas, and would like to share them
-with you.
-
-One interesting data point was a pointer to a Free Software app for
-Android named
-<a href="https://github.com/Freeyourgadget/Gadgetbridge/">Gadgetbridge</a>.
-It provide cloudless collection and storing of data from a variety of
-trackers. Its
-<a href="https://github.com/Freeyourgadget/Gadgetbridge/#supported-devices">list
-of supported devices</a> is a good indicator for units where the
-protocol is fairly open, as it is obviously being handled by Free
-Software. Other units are reportedly encrypting the collected
-information with their own public key, making sure only the vendor
-cloud service is able to extract data from the unit. The people
-contacting me about Gadgetbirde said they were using
-<a href="https://us.amazfit.com/shop/bip?variant=336750">Amazfit
-Bip</a> and
-<a href="http://www.xiaomimi6phone.com/xiaomi-mi-band-3-features-release-date-rumors/">Xiaomi
-Band 3</a>.</p>
-
-<p>I also got a suggestion to look at some of the units from Garmin.
-I was told their GPS watches can be connected via USB and show up as a
-USB storage device with
-<a href="https://www.gpsbabel.org/htmldoc-development/fmt_garmin_fit.html">Garmin
-FIT files</a> containing the collected measurements. While
-proprietary, FIT files apparently can be read at least by
-<a href="https://www.gpsbabel.org">GPSBabel</a> and the
-<a href="https://apps.nextcloud.com/apps/gpxpod">GpxPod</a> Nextcloud
-app. It is unclear to me if they can read step count and heart rate
-data. The person I talked to was using a
-<a href="https://buy.garmin.com/en-US/US/p/564291">Garmin Forerunner
-935</a>, which is a fairly expensive unit. I doubt it is worth it for
-a unit where the vendor clearly is trying its best to move from open
-to closed systems. I still remember when Garmin dropped NMEA support
-in its GPSes.</p>
-
-<p>A final idea was to build ones own unit, perhaps by basing it on a
-wearable hardware platforms like
-<a href="https://learn.adafruit.com/flora-geo-watch">the Flora Geo
-Watch</a>. Sound like fun, but I had more money than time to spend on
-the topic, so I suspect it will have to wait for another time.</p>
-
-<p>While I was working on tracking down links, I came across an
-inspiring TED talk by Dave Debronkart about
-<a href="https://archive.org/details/DavedeBronkart_2010X">being a
-e-patient</a>, and discovered the web site
-<a href="https://participatorymedicine.org/epatients/">Participatory
-Medicine</a>. If you too want to track your own health and fitness
-without having information about your private life floating around on
-computers owned by others, I recommend checking it out.</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>
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/What_would_it_cost_to_store_all_2018_phone_calls_in_Norway_.html">What would it cost to store all 2018 phone calls in Norway?</a></div>
+ <div class="date">25th November 2019</div>
+ <div class="body"><p>Four years ago, I did a back of the envelope calculation on
+<a href="http://people.skolelinux.org/pere/blog/What_would_it_cost_to_store_all_phone_calls_in_Norway_.html">how
+much it would cost to store audio recordings of all the phone calls in
+Norway</a>, and came up with NOK 2.1 million / EUR 250 000 for the
+year 2013. It is time to repeat the calculation using updated
+numbers. The calculation is based on how much data storage is needed
+for each minute of audio, how many minutes all the calls in Norway
+sums up to, multiplied by the cost of data storage.</p>
+
+<p>The number of phone call minutes for 2018 was fetched from
+<a href="https://ekomstatistikken.nkom.no/">the NKOM statistics
+site</a>, and for 2018, land line calls are listed as 434 238 000
+minutes, while mobile phone calls are listed with 7 542 006 000
+minutes. The total number of minutes is thus 7 976 244 000. For
+simplicity, I decided to ignore any advantages in audio compression the
+last four years, and continue to assume 60 Kbytes/min as the last
+time.</p>
+
+<p>Storage prices still varies a lot, but as last time, I decide to
+take a reasonable big and cheap hard drive, and double its price to
+include the surrounding costs into account. A 10 TB disk cost less
+than 4500 NOK / 450 EUR these days, and doubling it give 9000 NOK per
+10 TB.</p>
+
+<p>So, with the parameters in place, lets update the old table
+estimating cost for calls in a given year:</p>
+
+<table border="1">
+<tr><th>Year</th><th>Call minutes</th><th>Size</th><th>Price in NOK / EUR</th></tr>
+<tr><td>2005</td><td align="right">24 000 000 000</td><td align="right">1.3 PiB</td><td align="right">1 170 000 / 117 000</td></tr>
+
+<tr><td>2012</td><td align="right">18 000 000 000</td><td align="right">1.0 PiB</td><td align="right">900 000 / 90 000</td></tr>
+
+<tr><td>2013</td><td align="right">17 000 000 000</td><td align="right">950 TiB</td><td align="right">855 000 / 85 500</td></tr>
+
+<tr><td>2018</td><td align="right">7 976 244 000</td><td align="right">445 TiB</td><td align="right">401 100 / 40 110</td></tr>
+</table>
+
+<p>Both the cost of storage and the number of phone call minutes have
+dropped since the last time, bringing the cost down to a level where I
+guess even small organizations can afford to store the audio recording
+from every phone call taken in a year in Norway. Of course, this is
+just the cost of buying the storage equipment. Maintenance, need to
+be included as well, but the volume of a single year is about a single
+rack of hard drives, so it is not much more than I could fit in my own
+home. Wonder how much the electricity bill would raise if I had that
+kind of storage? I doubt it would be more than a few tens of thousand
+NOK per year.</p>
</div>
<div class="tags">
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
</div>
<h2>Archive</h2>
<ul>
+<li>2020
+<ul>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2020/04/">April (1)</a></li>
+
+</ul></li>
+
+<li>2019
+<ul>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
+
+</ul></li>
+
<li>2018
<ul>
<li><a href="http://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
+
</ul></li>
<li>2017
<li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (10)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (8)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (11)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (163)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (168)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (25)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (26)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (390)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (413)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (13)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (32)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (22)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi (3)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi (4)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (41)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (42)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (12)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (11)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/noark5">noark5 (22)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (299)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (313)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (191)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (197)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (34)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (38)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (72)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (75)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (107)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (111)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (12)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (6)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (55)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (56)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (56)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (70)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (55)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (58)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (13)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (17)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (69)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (73)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (41)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
</ul>
projects / homepage.git / blobdiff