X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/bb38026f1c7da4cc23680c02a66d2912d2925a58..e81974c19f825da6624e66ef824490f8c47f0af4:/blog/index.rss diff --git a/blog/index.rss b/blog/index.rss index 85727ea8ef..584106140e 100644 --- a/blog/index.rss +++ b/blog/index.rss @@ -7,141 +7,68 @@ - Streaming the Linux desktop to Kodi using VLC and RTSP - http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html - http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html - Thu, 12 Jul 2018 02:00:00 +0200 - <p>A while back, I was asked by a friend how to stream the desktop to -my projector connected to Kodi. I sadly had to admit that I had no -idea, as it was a task I never had tried. Since then, I have been -looking for a way to do so, preferable without much extra software to -install on either side. Today I found a way that seem to kind of -work. Not great, but it is a start.</p> - -<p>I had a look at several approaches, for example -<a href="https://github.com/mfoetsch/dlna_live_streaming">using uPnP -DLNA as described in 2011</a>, but it required a uPnP server, fuse and -local storage enough to store the stream locally. This is not going -to work well for me, lacking enough free space, and it would -impossible for my friend to get working.</p> - -<p>Next, it occurred to me that perhaps I could use VLC to create a -video stream that Kodi could play. Preferably using -broadcast/multicast, to avoid having to change any setup on the Kodi -side when starting such stream. Unfortunately, the only recipe I -could find using multicast used the rtp protocol, and this protocol -seem to not be supported by Kodi.</p> - -<p>On the other hand, the rtsp protocol is working! Unfortunately I -have to specify the IP address of the streaming machine in both the -sending command and the file on the Kodi server. But it is showing my -desktop, and thus allow us to have a shared look on the big screen at -the programs I work on.</p> - -<p>I did not spend much time investigating codeces. I combined the -rtp and rtsp recipes from -<a href="https://wiki.videolan.org/Documentation:Streaming_HowTo/Command_Line_Examples/">the -VLC Streaming HowTo/Command Line Examples</a>, and was able to get -this working on the desktop/streaming end.</p> - -<blockquote><pre> -vlc screen:// --sout \ - '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{dst=projector.local,port=1234,sdp=rtsp://192.168.11.4:8080/test.sdp}' -</pre></blockquote> - -<p>I ssh-ed into my Kodi box and created a file like this with the -same IP address:</p> - -<blockquote><pre> -echo rtsp://192.168.11.4:8080/test.sdp \ - > /storage/videos/screenstream.m3u -</pre></blockquote> - -<p>Note the 192.168.11.4 IP address is my desktops IP address. As far -as I can tell the IP must be hardcoded for this to work. In other -words, if someone elses machine is going to do the steaming, you have -to update screenstream.m3u on the Kodi machine and adjust the vlc -recipe. To get started, locate the file in Kodi and select the m3u -file while the VLC stream is running. The desktop then show up in my -big screen. :)</p> - -<p>When using the same technique to stream a video file with audio, -the audio quality is really bad. No idea if the problem is package -loss or bad parameters for the transcode. I do not know VLC nor Kodi -enough to tell.</p> - -<p><strong>Update 2018-07-12</strong>: Johannes Schauer send me a few -succestions and reminded me about an important step. The "screen:" -input source is only available once the vlc-plugin-access-extra -package is installed on Debian. Without it, you will see this error -message: "VLC is unable to open the MRL 'screen://'. Check the log -for details." He further found that it is possible to drop some parts -of the VLC command line to reduce the amount of hardcoded information. -It is also useful to consider using cvlc to avoid having the VLC -window in the desktop view. In sum, this give us this command line on -the source end - -<blockquote><pre> -cvlc screen:// --sout \ - '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{sdp=rtsp://:8080/}' -</pre></blockquote> - -<p>and this on the Kodi end<p> - -<blockquote><pre> -echo rtsp://192.168.11.4:8080/ \ - > /storage/videos/screenstream.m3u -</pre></blockquote> - -<p>Still bad image quality, though. But I did discover that streaming -a DVD using dvdsimple:///dev/dvd as the source had excellent video and -audio quality, so I guess the issue is in the input or transcoding -parts, not the rtsp part. I've tried to change the vb and ab -parameters to use more bandwidth, but it did not make a -difference.</p> - -<p>I further received a suggestion from Einar Haraldseid to try using -gstreamer instead of VLC, and this proved to work great! He also -provided me with the trick to get Kodi to use a multicast stream as -its source. By using this monstrous oneliner, I can stream my desktop -with good video quality in reasonable framerate to the 239.255.0.1 -multicast address on port 1234: - -<blockquote><pre> -gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \ - videoconvert ! queue2 ! \ - x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \ - key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \ - mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \ - udpsink host=239.255.0.1 port=1234 ttl-mc=1 auto-multicast=1 sync=0 \ - pulsesrc device=$(pactl list | grep -A2 'Source #' | \ - grep 'Name: .*\.monitor$' | cut -d" " -f2|head -1) ! \ - audioconvert ! queue2 ! avenc_aac ! queue2 ! mux. -</pre></blockquote> - -<p>and this on the Kodi end<p> - -<blockquote><pre> -echo udp://@239.255.0.1:1234 \ - > /storage/videos/screenstream.m3u -</pre></blockquote> - -<p>Note the trick to pick a valid pulseaudio source. It might not -pick the one you need. This approach will of course lead to trouble -if more than one source uses the same multicast port and address. -Note the ttl-mc=1 setting, which limit the multicast packages to the -local network. If the value is increased, your screen will be -broadcasted further, one network "hop" for each increase (read up on -multicast to learn more. :)!</p> - -<p>Having cracked how to get Kodi to receive multicast streams, I -could use this VLC command to stream to the same multicast address. -The image quality is way better than the rtsp approach, but gstreamer -seem to be doing a better job.</p> - -<blockquote><pre> -cvlc screen:// --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{mux=ts,dst=239.255.0.1,port=1234,sdp=sap}' -</pre></blockquote> + Jami as a Zoom client, a trick for password protected rooms... + http://people.skolelinux.org/pere/blog/Jami_as_a_Zoom_client__a_trick_for_password_protected_rooms___.html + http://people.skolelinux.org/pere/blog/Jami_as_a_Zoom_client__a_trick_for_password_protected_rooms___.html + Fri, 8 May 2020 13:30:00 +0200 + <p>Half a year ago, +<a href="http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html">I +wrote</a> about <a href="https://jami.net/">the Jami communication +client</a>, capable of peer-to-peer encrypted communication. It +handle both messages, audio and video. It uses distributed hash +tables instead of central infrastructure to connect its users to each +other, which in my book is a plus. I mentioned briefly that it could +also work as a SIP client, which came in handy when the higher +educational sector in Norway started to promote Zoom as its video +conferencing solution. I am reluctant to use the official Zoom client +software, due to their <a href="https://zoom.us/terms">copyright +license clauses</a> prohibiting users to reverse engineer (for example +to check the security) and benchmark it, and thus prefer to connect to +Zoom meetings with free software clients.</p> + +<p>Jami worked OK as a SIP client to Zoom as long as there was no +password set on the room. The Jami daemon leak memory like crazy +(approximately 1 GiB a minute) when I am connected to the video +conference, so I had to restart the client every 7-10 minutes, which +is not a great. I tried to get other SIP Linux clients to work +without success, so I decided I would have to live with this wart +until someone managed to fix the leak in the dring code base. But +another problem showed up once the rooms were password protected. I +could not get my dial tone signaling through from Jami to Zoom, and +dial tone signaling is used to enter the password when connecting to +Zoom. I tried a lot of different permutations with my Jami and +Asterisk setup to try to figure out why the signaling did not get +through, only to finally discover that the fundamental problem seem to +be that Zoom is simply not able to receive dial tone signaling when +connecting via SIP. There seem to be nothing wrong with the Jami and +Asterisk end, it is simply broken in the Zoom end. I got help from a +very skilled VoIP engineer figuring out this last part. And being a +very skilled engineer, he was also able to locate a solution for me. +Or to be exact, a workaround that solve my initial problem of +connecting to password protected Zoom rooms using Jami.</p> + +<p>So, how do you do this, I am sure you are wondering by now. The +trick is already +<a href="https://support.zoom.us/hc/en-us/articles/202405539-H-323-SIP-Room-Connector-Dial-Strings#sip">documented +from Zoom</a>, and it is to modify the SIP address to include the room +password. What is most surprising about this is that the +automatically generated email from Zoom with instructions on how to +connect via SIP do not mention this. The SIP address to use normally +consist of the room ID (a number), an @ character and the IP address +of the Zoom SIP gateway. But Zoom understand a lot more than just the +room ID in front of the at sign. The format is "<tt>[Meeting +ID].[Password].[Layout].[Host Key]</tt>", and you can hear see how you +can both enter password, control the layout (full screen, active +presence and gallery) and specify the host key to start the meeting. +The full SIP address entered into Jami to provide the password will +then look like this (all using made up numbers):</p> + +<p><blockquote> +<tt>sip:657837644.522827@192.168.169.170</tt> +</blockquote></p> + +<p>Now if only jami would reduce its memory usage, I could even +recommend this setup to others. :)</p> <p>As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -150,114 +77,43 @@ activities, please send Bitcoin donations to my address - What is the most supported MIME type in Debian in 2018? - http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html - http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html - Mon, 9 Jul 2018 08:05:00 +0200 - <p>Five years ago, -<a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html">I -measured what the most supported MIME type in Debian was</a>, by -analysing the desktop files in all packages in the archive. Since -then, the DEP-11 AppStream system has been put into production, making -the task a lot easier. This made me want to repeat the measurement, -to see how much things changed. Here are the new numbers, for -unstable only this time: - -<p><strong>Debian Unstable:</strong></p> - -<pre> - count MIME type - ----- ----------------------- - 56 image/jpeg - 55 image/png - 49 image/tiff - 48 image/gif - 39 image/bmp - 38 text/plain - 37 audio/mpeg - 34 application/ogg - 33 audio/x-flac - 32 audio/x-mp3 - 30 audio/x-wav - 30 audio/x-vorbis+ogg - 29 image/x-portable-pixmap - 27 inode/directory - 27 image/x-portable-bitmap - 27 audio/x-mpeg - 26 application/x-ogg - 25 audio/x-mpegurl - 25 audio/ogg - 24 text/html -</pre> - -<p>The list was created like this using a sid chroot: "cat -/var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk '/^ -- \S+\/\S+$/ {print $2 }' | sort | uniq -c | sort -nr | head -20"</p> - -<p>It is interesting to see how image formats have passed text/plain -as the most announced supported MIME type. These days, thanks to the -AppStream system, if you run into a file format you do not know, and -want to figure out which packages support the format, you can find the -MIME type of the file using "file --mime &lt;filename&gt;", and then -look up all packages announcing support for this format in their -AppStream metadata (XML or .desktop file) using "appstreamcli -what-provides mimetype &lt;mime-type&gt;. For example if you, like -me, want to know which packages support inode/directory, you can get a -list like this:</p> - -<p><blockquote><pre> -% appstreamcli what-provides mimetype inode/directory | grep Package: | sort -Package: anjuta -Package: audacious -Package: baobab -Package: cervisia -Package: chirp -Package: dolphin -Package: doublecmd-common -Package: easytag -Package: enlightenment -Package: ephoto -Package: filelight -Package: gwenview -Package: k4dirstat -Package: kaffeine -Package: kdesvn -Package: kid3 -Package: kid3-qt -Package: nautilus -Package: nemo -Package: pcmanfm -Package: pcmanfm-qt -Package: qweborf -Package: ranger -Package: sirikali -Package: spacefm -Package: spacefm -Package: vifm -% -</pre></blockquote></p> - -<p>Using the same method, I can quickly discover that the Sketchup file -format is not yet supported by any package in Debian:</p> - -<p><blockquote><pre> -% appstreamcli what-provides mimetype application/vnd.sketchup.skp -Could not find component providing 'mimetype::application/vnd.sketchup.skp'. -% -</pre></blockquote></p> - -<p>Yesterday I used it to figure out which packages support the STL 3D -format:</p> - -<p><blockquote><pre> -% appstreamcli what-provides mimetype application/sla|grep Package -Package: cura -Package: meshlab -Package: printrun -% -</pre></blockquote></p> - -<p>PS: A new version of Cura was uploaded to Debian yesterday.</p> + GnuCOBOL, a free platform to learn and use COBOL - nice free software + http://people.skolelinux.org/pere/blog/GnuCOBOL__a_free_platform_to_learn_and_use_COBOL___nice_free_software.html + http://people.skolelinux.org/pere/blog/GnuCOBOL__a_free_platform_to_learn_and_use_COBOL___nice_free_software.html + Wed, 29 Apr 2020 13:10:00 +0200 + <p>The curiosity got the better of me when +<a href="https://developers.slashdot.org/story/20/04/06/1424246/new-jersey-desperately-needs-cobol-programmers">Slashdot +reported</a> that New Jersey was desperately looking for +<a href="https://en.wikipedia.org/wiki/COBOL">COBOL</a> programmers, +and a few days later it was reported that +<a href="https://onezero.medium.com/ibm-rallies-cobol-engineers-to-save-overloaded-unemployment-systems-eeadf13eddce">IBM +tried to locate COBOL programmers</a>.</p> + +<p>I thus decided to have a look at free software alternatives to +learn COBOL, and had the pleasure to find +<a href="https://sourceforge.net/projects/open-cobol/">GnuCOBOL</a> was +already <a href="https://tracker.debian.org/pkg/gnucobol">in +Debian</a>. It used to be called Open Cobol, and is a "compiler" +transforming COBOL code to C or C++ before giving it to GCC or Visual +Studio to build binaries.</p> + +<p>I managed to get in touch with upstream, and was impressed with the +quick response, and also was happy to see a new Debian maintainer +taking over when the original one recently asked to be replaced. A +new Debian upload was done as recently as yesterday.</p> + +<p>Using the Debian package, I was able to follow a simple COBOL +introduction and make and run simple COBOL programs. It was fun to +learn a new programming language. If you want to test for yourself, +<a href="https://en.wikipedia.org/wiki/GnuCOBOL">the GnuCOBOL Wikipedia +page</a> have a few simple examples to get you startet.</p> + +<p>As I do not have much experience with COBOL, I do not know how +standard compliant it is, but it claim to pass most tests from COBOL +test suite, which sound good to me. It is nice to know it is possible +to learn COBOL using software without any usage restrictions, and I am +very happy such nice free software project as this is available. If +you as me is curious about COBOL, check 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 @@ -266,164 +122,168 @@ activities, please send Bitcoin donations to my address - Debian APT upgrade without enough free space on the disk... - http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html - http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html - Sun, 8 Jul 2018 12:10:00 +0200 - <p>Quite regularly, I let my Debian Sid/Unstable chroot stay untouch -for a while, and when I need to update it there is not enough free -space on the disk for apt to do a normal 'apt upgrade'. I normally -would resolve the issue by doing 'apt install &lt;somepackages&gt;' to -upgrade only some of the packages in one batch, until the amount of -packages to download fall below the amount of free space available. -Today, I had about 500 packages to upgrade, and after a while I got -tired of trying to install chunks of packages manually. I concluded -that I did not have the spare hours required to complete the task, and -decided to see if I could automate it. I came up with this small -script which I call 'apt-in-chunks':</p> - -<p><blockquote><pre> -#!/bin/sh -# -# Upgrade packages when the disk is too full to upgrade every -# upgradable package in one lump. Fetching packages to upgrade using -# apt, and then installing using dpkg, to avoid changing the package -# flag for manual/automatic. - -set -e - -ignore() { - if [ "$1" ]; then - grep -v "$1" - else - cat - fi -} - -for p in $(apt list --upgradable | ignore "$@" |cut -d/ -f1 | grep -v '^Listing...'); do - echo "Upgrading $p" - apt clean - apt install --download-only -y $p - for f in /var/cache/apt/archives/*.deb; do - if [ -e "$f" ]; then - dpkg -i /var/cache/apt/archives/*.deb - break - fi - done -done -</pre></blockquote></p> - -<p>The script will extract the list of packages to upgrade, try to -download the packages needed to upgrade one package, install the -downloaded packages using dpkg. The idea is to upgrade packages -without changing the APT mark for the package (ie the one recording of -the package was manually requested or pulled in as a dependency). To -use it, simply run it as root from the command line. If it fail, try -'apt install -f' to clean up the mess and run the script again. This -might happen if the new packages conflict with one of the old -packages. dpkg is unable to remove, while apt can do this.</p> - -<p>It take one option, a package to ignore in the list of packages to -upgrade. The option to ignore a package is there to be able to skip -the packages that are simply too large to unpack. Today this was -'ghc', but I have run into other large packages causing similar -problems earlier (like TeX).</p> - -<p>Update 2018-07-08: Thanks to Paul Wise, I am aware of two -alternative ways to handle this. The "unattended-upgrades ---minimal-upgrade-steps" option will try to calculate upgrade sets for -each package to upgrade, and then upgrade them in order, smallest set -first. It might be a better option than my above mentioned script. -Also, "aptutude upgrade" can upgrade single packages, thus avoiding -the need for using "dpkg -i" in the script above.</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> + Totalovervåkning av innbyggernes bevegelser - nei takk! + http://people.skolelinux.org/pere/blog/Totaloverv_kning_av_innbyggernes_bevegelser___nei_takk_.html + http://people.skolelinux.org/pere/blog/Totaloverv_kning_av_innbyggernes_bevegelser___nei_takk_.html + Thu, 16 Apr 2020 20:30:00 +0200 + <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 svært dårlig ide å bli med på denne "dugnaden". +Det finnes andre og bedre tilnærminger enn den valgt av FHI. Har de +valgt sin tilnærming 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> - The worlds only stone power plant? - http://people.skolelinux.org/pere/blog/The_worlds_only_stone_power_plant_.html - http://people.skolelinux.org/pere/blog/The_worlds_only_stone_power_plant_.html - Sat, 30 Jun 2018 10:35:00 +0200 - <p>So far, at least hydro-electric power, coal power, wind power, -solar power, and wood power are well known. Until a few days ago, I -had never heard of stone power. Then I learn about a quarry in a -mountain in -<a href="https://en.wikipedia.org/wiki/Bremanger">Bremanger</a> i -Norway, where -<a href="https://www.bontrup.com/en/activities/raw-materials/bremanger-quarry/">the -Bremanger Quarry</a> company is extracting stone and dumping the stone -into a shaft leading to its shipping harbour. This downward movement -in this shaft is used to produce electricity. In short, it is using -falling rocks instead of falling water to produce electricity, and -according to its own statements it is producing more power than it is -using, and selling the surplus electricity to the Norwegian power -grid. I find the concept truly amazing. Is this the worlds only -stone power plant?</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> + Ny URL til den frie norske stavekontrollen + http://people.skolelinux.org/pere/blog/Ny_URL_til_den_frie_norske_stavekontrollen.html + http://people.skolelinux.org/pere/blog/Ny_URL_til_den_frie_norske_stavekontrollen.html + Sat, 21 Mar 2020 08:00:00 +0100 + <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> - Add-on to control the projector from within Kodi - http://people.skolelinux.org/pere/blog/Add_on_to_control_the_projector_from_within_Kodi.html - http://people.skolelinux.org/pere/blog/Add_on_to_control_the_projector_from_within_Kodi.html - Tue, 26 Jun 2018 23:55:00 +0200 - <p>My movie playing setup involve <a href="https://kodi.tv/">Kodi</a>, -<a href="https://openelec.tv">OpenELEC</a> (probably soon to be -replaced with <a href="https://libreelec.tv/">LibreELEC</a>) and an -Infocus IN76 video projector. My projector can be controlled via both -a infrared remote controller, and a RS-232 serial line. The vendor of -my projector, <a href="https://www.infocus.com/">InFocus</a>, had been -sensible enough to document the serial protocol in its user manual, so -it is easily available, and I used it some years ago to write -<a href="https://github.com/petterreinholdtsen/infocus-projector-control">a -small script to control the projector</a>. For a while now, I longed -for a setup where the projector was controlled by Kodi, for example in -such a way that when the screen saver went on, the projector was -turned off, and when the screen saver exited, the projector was turned -on again.</p> - -<p>A few days ago, with very good help from parts of my family, I -managed to find a Kodi Add-on for controlling a Epson projector, and -got in touch with its author to see if we could join forces and make a -Add-on with support for several projectors. To my pleasure, he was -positive to the idea, and we set out to add InFocus support to his -add-on, and make the add-on suitable for the official Kodi add-on -repository.</p> - -<p>The Add-on is now working (for me, at least), with a few minor -adjustments. The most important change I do relative to the master -branch in the github repository is embedding the -<a href="https://github.com/pyserial/pyserial">pyserial module</a> in -the add-on. The long term solution is to make a "script" type -pyserial module for Kodi, that can be pulled in as a dependency in -Kodi. But until that in place, I embed it.</p> - -<p>The add-on can be configured to turn on the projector when Kodi -starts, off when Kodi stops as well as turn the projector off when the -screensaver start and on when the screesaver stops. It can also be -told to set the projector source when turning on the projector. - -<p>If this sound interesting to you, check out -<a href="https://github.com/fredrik-eriksson/kodi_projcontrol">the -project github repository</a>. Perhaps you can send patches to -support your projector too? As soon as we find time to wrap up the -latest changes, it should be available for easy installation using any -Kodi instance.</p> - -<p>For future improvements, I would like to add projector model -detection and the ability to adjust the brightness level of the -projector from within Kodi. We also need to figure out how to handle -the cooling period of the projector. My projector refuses to turn on -for 60 seconds after it was turned off. This is not handled well by -the add-on at the moment.</p> + Nikita version 0.5 released - updated free software archive API server + http://people.skolelinux.org/pere/blog/Nikita_version_0_5_released___updated_free_software_archive_API_server.html + http://people.skolelinux.org/pere/blog/Nikita_version_0_5_released___updated_free_software_archive_API_server.html + Mon, 2 Mar 2020 19:00:00 +0100 + <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>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 +(<a href="irc://irc.freenode.net/%23nikita">#nikita on +irc.freenode.net</a>) or email +(<a href="https://lists.nuug.no/mailman/listinfo/nikita-noark">nikita-noark +mailing list</a>).</p> <p>As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -432,212 +292,188 @@ activities, please send Bitcoin donations to my address - youtube-dl for nedlasting fra NRK med undertekster - nice free software - http://people.skolelinux.org/pere/blog/youtube_dl_for_nedlasting_fra_NRK_med_undertekster___nice_free_software.html - http://people.skolelinux.org/pere/blog/youtube_dl_for_nedlasting_fra_NRK_med_undertekster___nice_free_software.html - Sat, 28 Apr 2018 10:30:00 +0200 - <p>I <a href="https://no.wikipedia.org/wiki/VHS">VHS-kassettenes</a> -tid var det rett frem å ta vare på et TV-program en ønsket å kunne se -senere, uten å være avhengig av at programmet ble sendt på nytt. -Kanskje ønsket en å se programmet på hytten der det ikke var -TV-signal, eller av andre grunner ha det tilgjengelig for fremtidig -fornøyelse. Dette er blitt vanskeligere med introduksjon av -digital-TV og webstreaming, der opptak til harddisk er utenfor de -flestes kontroll hvis de bruker ufri programvare og bokser kontrollert -av andre. Men for NRK her i Norge, finnes det heldigvis flere fri -programvare-alternativer, som jeg har -<a href="http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK.html">skrevet</a> -<a href="http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK_med_den__nye__l_sningen.html">om</a> -<a href="http://people.skolelinux.org/pere/blog/Nedlasting_fra_NRK__som_Matroska_med_undertekster.html">før</a>. -Så lenge kilden for nedlastingen er lovlig lagt ut på nett (hvilket -jeg antar NRK gjør), så er slik lagring til privat bruk også lovlig i -Norge.</p> - -<p>Sist jeg så på saken, i 2016, nevnte jeg at -<a href="https://rg3.github.com/youtube-dl/">youtube-dl</a> ikke kunne -bake undertekster fra NRK inn i videofilene, og at jeg derfor -foretrakk andre alternativer. Nylig oppdaget jeg at dette har endret -seg. Fordelen med youtube-dl er at den er tilgjengelig direkte fra -Linux-distribusjoner som <a href="https://www.debian.org/">Debian</a> -og <a href="https://www.ubuntu.com/">Ubuntu</a>, slik at en slipper å -finne ut selv hvordan en skal få dem til å virke.</p> - -<p>For å laste ned et NRK-innslag med undertekster, og få den norske -underteksten pakket inn i videofilen, så kan følgende kommando -brukes:</p> - -<p><pre> -youtube-dl --write-sub --sub-format ttml \ - --convert-subtitles srt --embed-subs \ - https://tv.nrk.no/serie/ramm-ferdig-gaa/MUHU11000316/27-04-2018 -</pre></p> - -<p>URL-eksemplet er dagens toppsak på tv.nrk.no. Resultatet er en -MP4-fil med filmen og undertekster som kan spilles av med VLC. Merk -at VLC ikke viser frem undertekster før du aktiverer dem. For å gjøre -det, høyreklikk med musa i fremviservinduet, velg menyvalget for -undertekst og så norsk språk. Jeg testet også '--write-auto-sub', -men det kommandolinjeargumentet ser ikke ut til å fungere, så jeg -endte opp med settet med argumentlisten over, som jeg fant i en -feilrapport i youtube-dl-prosjektets samling over feilrapporter.</p> - -<p>Denne støtten i youtube-dl gjør det svært enkelt å lagre -NRK-innslag, det være seg nyheter, filmer, serier eller dokumentater, -for å ha dem tilgjengelig for fremtidig referanse og bruk, uavhengig -av hvor lenge innslagene ligger tilgjengelig hos NRK. Så får det ikke -hjelpe at NRKs jurister mener at det er -<a href="http://people.skolelinux.org/pere/blog/Best___ikke_fortelle_noen_at_streaming_er_nedlasting___.html">vesensforskjellig -å legge tilgjengelig for nedlasting og for streaming</a>, når det rent -teknisk er samme sak.</p> - -<p>Programmet youtube-dl støtter også en rekke andre nettsteder, se -prosjektoversikten for -<a href="http://rg3.github.io/youtube-dl/supportedsites.html">en -komplett liste</a>.</p> + Blockchain and IoT articles accepted into Records Management Journal + http://people.skolelinux.org/pere/blog/Blockchain_and_IoT_articles_accepted_into_Records_Management_Journal.html + http://people.skolelinux.org/pere/blog/Blockchain_and_IoT_articles_accepted_into_Records_Management_Journal.html + Thu, 27 Feb 2020 09:05:00 +0100 + <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-09-2019-0050">DOI +10.1108/RMJ-09-2019-0050<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-09-2019-0056">DOI +10.1108/RMJ-09-2019-0056</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 +<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p> + +<p><strong>Update 2020-04-26</strong>: Initially managed to swap the +DOI numbers. Fixed it.</p> - Stortingsflertallet går inn for ny IP-basert sensurinfrastruktur i Norge - http://people.skolelinux.org/pere/blog/Stortingsflertallet_g_r_inn_for_ny_IP_basert_sensurinfrastruktur_i_Norge.html - http://people.skolelinux.org/pere/blog/Stortingsflertallet_g_r_inn_for_ny_IP_basert_sensurinfrastruktur_i_Norge.html - Tue, 24 Apr 2018 15:00:00 +0200 - <p><a href="https://www.vg.no/sport/i/J1g8zj/stortingsvedtak-snart-ip-blokkerer-utenlandske-spillselskaper">VG</a>, -<a href="https://www.dagbladet.no/nyheter/stortinget-blokkerer-utenlandske-spillselskaper/69740219">Dagbladet</a> -og -<a href="https://www.nrk.no/ostfold/tar-opp-kampen-mot-utenlandske-spillselskap-1.14021381">NRK</a> -melder i dag at flertallet i Familie- og kulturkomiteen på Stortinget -har bestemt seg for å introdusere en ny sensurinfrastruktur i Norge. -Fra før har Norge en «frivillig» sensurinfrastruktur basert på -DNS-navn, der de største ISP-ene basert på en liste med DNS-navn -forgifter DNS-svar og omdirigerer til et annet IP-nummer enn det som -ligger i DNS. Nå kommer altså IP-basert omdirigering i tillegg. Når -infrastrukturen er på plass, er sensur av IP-adresser redusert et -spørsmål om hvilke IP-nummer som skal blokkeres. Listen over -IP-adresser vil naturligvis endre seg etter hvert som myndighetene -endrer seg. Det er ingen betryggende tanke.</p> + Redaksjon på plass for Noark 5 tjenestegrensesnitt + http://people.skolelinux.org/pere/blog/Redaksjon_p__plass_for_Noark_5_tjenestegrensesnitt.html + http://people.skolelinux.org/pere/blog/Redaksjon_p__plass_for_Noark_5_tjenestegrensesnitt.html + Wed, 5 Feb 2020 14:45:00 +0100 + <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> - En grunn til å takke nei til usikker digital post - http://people.skolelinux.org/pere/blog/En_grunn_til___takke_nei_til_usikker_digital_post.html - http://people.skolelinux.org/pere/blog/En_grunn_til___takke_nei_til_usikker_digital_post.html - Mon, 2 Apr 2018 13:30:00 +0200 - <p>Brevpost er beskyttet av straffelovens bestemmelse som gjør det -kriminelt å åpne andres brev. Dette følger av (ny) straffelovs -<a href="https://lovdata.no/dokument/NL/lov/2005-05-20-28/§205">§ 205 -(Krenkelse av retten til privat kommunikasjon)</a>, som sier at «Med -bot eller fengsel inntil 2 år straffes den som uberettiget ... c) -åpner brev eller annen lukket skriftlig meddelelse som er adressert -til en annen, eller på annen måte skaffer seg uberettiget tilgang til -innholdet.» Dette gjelder såvel postbud som alle andre som har -befatning med brevet etter at avsender har befatning med et lukket -brev. Tilsvarende står også tidligere utgaver av den norske -straffeloven.</p> - -<p>Når en registrerer seg på usikre digitale postkasseløsningene, som -f.eks. Digipost og e-Boks, og slik tar disse i bruk, så gir en de som -står bak løsningene tillatelse til å åpne sine brev. Dette er -nødvendig for at innholdet i digital post skal kunne vises frem til -mottaker via tjenestens websider. Dermed gjelder ikke straffelovens -paragraf om forbud mot å åpne brev, da tilgangen ikke lenger er -uberettiget. En gir altså fremmede tilgang til å lese sin -korrespondanse. I tillegg vil bruk av slike usikre digitale -postbokser føre til at det blir registrert når du leser brevene, hvor -du befinner deg (vha. tilkoblingens IP-adresse), hvilket utstyr du -bruker og en rekke annen personlig informasjon som ikke er -tilgjengelig når papirpost brukes. Jeg foretrekker at det er -lovmessig beskyttelse av min korrespondanse, som jo inneholder privat -og personlig informasjon. Det bidrar til litt bedre vern av personlig -integritet i dagens norske samfunn.</p> + Artikkel om Noark 5 Tjenestegrensesnitt og Nikita i Arkivråd nummer 3 for 2019 + http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html + http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html + Thu, 26 Dec 2019 08:00:00 +0100 + <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> - Self-appointed leaders of the Free World - http://people.skolelinux.org/pere/blog/Self_appointed_leaders_of_the_Free_World.html - http://people.skolelinux.org/pere/blog/Self_appointed_leaders_of_the_Free_World.html - Thu, 22 Mar 2018 11:00:00 +0100 - <p>The leaders of the worlds have started to congratulate the -re-elected Russian head of state, and this causes some criticism. I -am though a little fascinated by a comment from USA senator John McCain, -<a href="http://thehill.com/homenews/senate/379339-mccain-rips-trumps-congratulatory-call-to-putin-as-insult-to-russian-people">sited -by The Hill and others</a>: - -<p><blockquote> -<p>"An American president does not lead the Free World by -congratulating dictators on winning sham elections."</p> -</blockquote></p> - -<p>While I totally agree with the senator here, the way the quote is -phrased make me suspect that he is unaware of the simple fact that USA -have not lead the Free World since at least before its government -<a href="https://en.wikipedia.org/wiki/Maher_Arar">kidnapped a -completely innocent Canadian citizen in transit on his way home to -Canada via John F. Kennedy International Airport in September 2002 and -sent him to be tortured in Syria for a year</a>.</p> - -<p>USA might be running ahead, but the path they are taking is not the -one taken by any Free World.</p> + Meningsløst, men for hvem... + http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html + http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html + Wed, 25 Dec 2019 10:35:00 +0100 + <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> - Facebooks ability to sell your personal information is the real Cambridge Analytica scandal - http://people.skolelinux.org/pere/blog/Facebooks_ability_to_sell_your_personal_information_is_the_real_Cambridge_Analytica_scandal.html - http://people.skolelinux.org/pere/blog/Facebooks_ability_to_sell_your_personal_information_is_the_real_Cambridge_Analytica_scandal.html - Wed, 21 Mar 2018 16:30:00 +0100 - <p>So, Cambridge Analytica is getting some well deserved criticism for -(mis)using information it got from Facebook about 50 million people, -mostly in the USA. What I find a bit surprising, is how little -criticism Facebook is getting for handing the information over to -Cambridge Analytica and others in the first place. And what about the -people handing their private and personal information to Facebook? -And last, but not least, what about the government offices who are -handing information about the visitors of their web pages to Facebook? -No-one who looked at the terms of use of Facebook should be surprised -that information about peoples interests, political views, personal -lifes and whereabouts would be sold by Facebook.</p> - -<p>What I find to be the real scandal is the fact that Facebook is -selling your personal information, not that one of the buyers used it -in a way Facebook did not approve when exposed. It is well known that -Facebook is selling out their users privacy, but a scandal -nevertheless. Of course the information provided to them by Facebook -would be misused by one of the parties given access to personal -information about the millions of Facebook users. Collected -information will be misused sooner or later. The only way to avoid -such misuse, is to not collect the information in the first place. If -you do not want Facebook to hand out information about yourself for -the use and misuse of its customers, do not give Facebook the -information.</p> - -<p>Personally, I would recommend to completely remove your Facebook -account, and take back some control of your personal information. -<a href="https://www.theguardian.com/technology/2018/mar/19/how-to-protect-your-facebook-privacy-or-delete-yourself-completely">According -to The Guardian</a>, it is a bit hard to find out how to request -account removal (and not just 'disabling'). You need to -<a href="https://www.facebook.com/help/224562897555674?helpref=faq_content">visit -a specific Facebook page</a> and click on 'let us know' on that page -to get to <a href="https://www.facebook.com/help/delete_account">the -real account deletion screen</a>. Perhaps something to consider? I -would not trust the information to really be deleted (who knows, -perhaps NSA, GCHQ and FRA already got a copy), but it might reduce the -exposure a bit.</p> - -<p>If you want to learn more about the capabilities of Cambridge -Analytica, I recommend to see the video recording of the one hour talk -Paul-Olivier Dehaye gave to <a href="">NUUG</a> last april about -<a href="https://www.nuug.no/aktiviteter/20170404-big-data-psychometric/"> -Data collection, psychometric profiling and their impact on -politics</a>.</p> - -<p>And if you want to communicate with your friends and loved ones, -use some end-to-end encrypted method like -<a href="https://www.signal.org/">Signal</a> or -<a href="https://ring.cx/">Ring</a>, and stop sharing your private -messages with strangers like Facebook and Google.</p> + Artikkel om Nikita i Arkheion nummer 2019/2 + http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html + http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html + Mon, 9 Dec 2019 15:05:00 +0100 + <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>