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15 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
22 <h3>Entries from July
2018.
</h3>
26 <a href=
"http://people.skolelinux.org/pere/blog/Sharing_images_with_friends_and_family_using_RSS_and_EXIF_XMP_metadata.html">Sharing images with friends and family using RSS and EXIF/XMP metadata
</a>
32 <p>For a while now, I have looked for a sensible way to share images
33 with my family using a self hosted solution, as it is unacceptable to
34 place images from my personal life under the control of strangers
35 working for data hoarders like Google or Dropbox. The last few days I
36 have drafted an approach that might work out, and I would like to
37 share it with you. I would like to publish images on a server under
38 my control, and point some Internet connected display units using some
39 free and open standard to the images I published. As my primary
40 language is not limited to ASCII, I need to store metadata using
41 UTF-
8. Many years ago, I hoped to find a digital photo frame capable
42 of reading a RSS feed with image references (aka using the
43 <enclosure
> RSS tag), but was unable to find a current supplier
44 of such frames. In the end I gave up that approach.
</p>
46 <p>Some months ago, I discovered that
47 <a href=
"https://www.jwz.org/xscreensaver/">XScreensaver
</a> is able to
48 read images from a RSS feed, and used it to set up a screen saver on
49 my home info screen, showing images from the Daily images feed from
50 NASA. This proved to work well. More recently I discovered that
51 <a href=
"https://kodi.tv">Kodi
</a> (both using
52 <a href=
"https://www.openelec.tv/">OpenELEC
</a> and
53 <a href=
"https://libreelec.tv">LibreELEC
</a>) provide the
54 <a href=
"https://github.com/grinsted/script.screensaver.feedreader">Feedreader
</a>
55 screen saver capable of reading a RSS feed with images and news. For
56 fun, I used it this summer to test Kodi on my parents TV by hooking up
57 a Raspberry PI unit with LibreELEC, and wanted to provide them with a
58 screen saver showing selected pictures from my selection.
</p>
60 <p>Armed with motivation and a test photo frame, I set out to generate
61 a RSS feed for the Kodi instance. I adjusted my
<a
62 href=
"https://freedombox.org/">Freedombox
</a> instance, created
63 /var/www/html/privatepictures/, wrote a small Perl script to extract
64 title and description metadata from the photo files and generate the
65 RSS file. I ended up using Perl instead of python, as the
66 libimage-exiftool-perl Debian package seemed to handle the EXIF/XMP
67 tags I ended up using, while python3-exif did not. The relevant EXIF
68 tags only support ASCII, so I had to find better alternatives. XMP
69 seem to have the support I need.
</p>
71 <p>I am a bit unsure which EXIF/XMP tags to use, as I would like to
72 use tags that can be easily added/updated using normal free software
73 photo managing software. I ended up using the tags set using this
74 exiftool command, as these tags can also be set using digiKam:
</p>
77 exiftool -headline='The RSS image title' \
78 -description='The RSS image description.' \
79 -subject+=for-family photo.jpeg
82 <p>I initially tried the "-title" and "keyword" tags, but they were
83 invisible in digiKam, so I changed to "-headline" and "-subject". I
84 use the keyword/subject 'for-family' to flag that the photo should be
85 shared with my family. Images with this keyword set are located and
86 copied into my Freedombox for the RSS generating script to find.
</p>
88 <p>Are there better ways to do this? Get in touch if you have better
91 <p>As usual, if you use Bitcoin and want to show your support of my
92 activities, please send Bitcoin donations to my address
93 <b><a href=
"bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b
</a></b>.
</p>
99 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>.
104 <div class=
"padding"></div>
108 <a href=
"http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">Simple streaming the Linux desktop to Kodi using GStreamer and RTP
</a>
114 <p>Last night, I wrote
115 <a href=
"http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">a
116 recipe to stream a Linux desktop using VLC to a instance of Kodi
</a>.
117 During the day I received valuable feedback, and thanks to the
118 suggestions I have been able to rewrite the recipe into a much simpler
119 approach requiring no setup at all. It is a single script that take
122 <p>This new script uses GStreamer instead of VLC to capture the
123 desktop and stream it to Kodi. This fixed the video quality issue I
124 saw initially. It further removes the need to add a m3u file on the
125 Kodi machine, as it instead connects to
126 <a href=
"https://kodi.wiki/view/JSON-RPC_API/v8">the JSON-RPC API in
127 Kodi
</a> and simply ask Kodi to play from the stream created using
128 GStreamer. Streaming the desktop to Kodi now become trivial. Copy
129 the script below, run it with the DNS name or IP address of the kodi
130 server to stream to as the only argument, and watch your screen show
131 up on the Kodi screen. Note, it depend on multicast on the local
132 network, so if you need to stream outside the local network, the
133 script must be modified. Also note, I have no idea if audio work, as
134 I only care about the picture part.
</p>
139 # Stream the Linux desktop view to Kodi. See
140 # http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html
141 # for backgorund information.
143 # Make sure the stream is stopped in Kodi and the gstreamer process is
144 # killed if something go wrong (for example if curl is unable to find the
145 # kodi server). Do the same when interrupting this script.
150 curl --silent --header 'Content-Type: application/json' \
151 --data-binary "{ \"id\":
1, \"jsonrpc\": \"
2.0\", \"method\": \"$cmd\", \"params\": $params }" \
152 "http://$host/jsonrpc"
155 if [ -n "$kodihost" ] ; then
156 # Stop the playing when we end
157 playerid=$(kodicmd "$kodihost" Player.GetActivePlayers "{}" |
158 jq .result[].playerid)
159 kodicmd "$kodihost" Player.Stop "{ \"playerid\" : $playerid }"
> /dev/null
161 if [ "$gstpid" ] && kill -
0 "$gstpid"
>/dev/null
2>&1; then
165 trap cleanup EXIT INT
178 pasrc=$(pactl list | grep -A2 'Source #' | grep 'Name: .*\.monitor$' | \
179 cut -d" " -f2|head -
1)
180 gst-launch-
1.0 ximagesrc use-damage=
0 ! video/x-raw,framerate=
30/
1 ! \
181 videoconvert ! queue2 ! \
182 x264enc bitrate=
8000 speed-preset=superfast tune=zerolatency qp-min=
30 \
183 key-int-max=
15 bframes=
2 ! video/x-h264,profile=high ! queue2 ! \
184 mpegtsmux alignment=
7 name=mux ! rndbuffersize max=
1316 min=
1316 ! \
185 udpsink host=$mcast port=$mcastport ttl-mc=$mcastttl auto-multicast=
1 sync=
0 \
186 pulsesrc device=$pasrc ! audioconvert ! queue2 ! avenc_aac ! queue2 ! mux. \
190 # Give stream a second to get going
193 # Ask kodi to start streaming using its JSON-RPC API
194 kodicmd "$kodihost" Player.Open \
195 "{\"item\": { \"file\": \"udp://@$mcast:$mcastport\" } }"
> /dev/null
197 # wait for gst to end
201 <p>I hope you find the approach useful. I know I do.
</p>
203 <p>As usual, if you use Bitcoin and want to show your support of my
204 activities, please send Bitcoin donations to my address
205 <b><a href=
"bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b
</a></b>.
</p>
211 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>.
216 <div class=
"padding"></div>
220 <a href=
"http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">Streaming the Linux desktop to Kodi using VLC and RTSP
</a>
227 <ahref=
"http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">the
228 followup post
</a> for a even better approach.
</p>
230 <p>A while back, I was asked by a friend how to stream the desktop to
231 my projector connected to Kodi. I sadly had to admit that I had no
232 idea, as it was a task I never had tried. Since then, I have been
233 looking for a way to do so, preferable without much extra software to
234 install on either side. Today I found a way that seem to kind of
235 work. Not great, but it is a start.
</p>
237 <p>I had a look at several approaches, for example
238 <a href=
"https://github.com/mfoetsch/dlna_live_streaming">using uPnP
239 DLNA as described in
2011</a>, but it required a uPnP server, fuse and
240 local storage enough to store the stream locally. This is not going
241 to work well for me, lacking enough free space, and it would
242 impossible for my friend to get working.
</p>
244 <p>Next, it occurred to me that perhaps I could use VLC to create a
245 video stream that Kodi could play. Preferably using
246 broadcast/multicast, to avoid having to change any setup on the Kodi
247 side when starting such stream. Unfortunately, the only recipe I
248 could find using multicast used the rtp protocol, and this protocol
249 seem to not be supported by Kodi.
</p>
251 <p>On the other hand, the rtsp protocol is working! Unfortunately I
252 have to specify the IP address of the streaming machine in both the
253 sending command and the file on the Kodi server. But it is showing my
254 desktop, and thus allow us to have a shared look on the big screen at
255 the programs I work on.
</p>
257 <p>I did not spend much time investigating codeces. I combined the
258 rtp and rtsp recipes from
259 <a href=
"https://wiki.videolan.org/Documentation:Streaming_HowTo/Command_Line_Examples/">the
260 VLC Streaming HowTo/Command Line Examples
</a>, and was able to get
261 this working on the desktop/streaming end.
</p>
264 vlc screen:// --sout \
265 '#transcode{vcodec=mp4v,acodec=mpga,vb=
800,ab=
128}:rtp{dst=projector.local,port=
1234,sdp=rtsp://
192.168.11.4:
8080/test.sdp}'
268 <p>I ssh-ed into my Kodi box and created a file like this with the
272 echo rtsp://
192.168.11.4:
8080/test.sdp \
273 > /storage/videos/screenstream.m3u
276 <p>Note the
192.168.11.4 IP address is my desktops IP address. As far
277 as I can tell the IP must be hardcoded for this to work. In other
278 words, if someone elses machine is going to do the steaming, you have
279 to update screenstream.m3u on the Kodi machine and adjust the vlc
280 recipe. To get started, locate the file in Kodi and select the m3u
281 file while the VLC stream is running. The desktop then show up in my
284 <p>When using the same technique to stream a video file with audio,
285 the audio quality is really bad. No idea if the problem is package
286 loss or bad parameters for the transcode. I do not know VLC nor Kodi
289 <p><strong>Update
2018-
07-
12</strong>: Johannes Schauer send me a few
290 succestions and reminded me about an important step. The "screen:"
291 input source is only available once the vlc-plugin-access-extra
292 package is installed on Debian. Without it, you will see this error
293 message: "VLC is unable to open the MRL 'screen://'. Check the log
294 for details." He further found that it is possible to drop some parts
295 of the VLC command line to reduce the amount of hardcoded information.
296 It is also useful to consider using cvlc to avoid having the VLC
297 window in the desktop view. In sum, this give us this command line on
301 cvlc screen:// --sout \
302 '#transcode{vcodec=mp4v,acodec=mpga,vb=
800,ab=
128}:rtp{sdp=rtsp://:
8080/}'
305 <p>and this on the Kodi end
<p>
308 echo rtsp://
192.168.11.4:
8080/ \
309 > /storage/videos/screenstream.m3u
312 <p>Still bad image quality, though. But I did discover that streaming
313 a DVD using dvdsimple:///dev/dvd as the source had excellent video and
314 audio quality, so I guess the issue is in the input or transcoding
315 parts, not the rtsp part. I've tried to change the vb and ab
316 parameters to use more bandwidth, but it did not make a
319 <p>I further received a suggestion from Einar Haraldseid to try using
320 gstreamer instead of VLC, and this proved to work great! He also
321 provided me with the trick to get Kodi to use a multicast stream as
322 its source. By using this monstrous oneliner, I can stream my desktop
323 with good video quality in reasonable framerate to the
239.255.0.1
324 multicast address on port
1234:
327 gst-launch-
1.0 ximagesrc use-damage=
0 ! video/x-raw,framerate=
30/
1 ! \
328 videoconvert ! queue2 ! \
329 x264enc bitrate=
8000 speed-preset=superfast tune=zerolatency qp-min=
30 \
330 key-int-max=
15 bframes=
2 ! video/x-h264,profile=high ! queue2 ! \
331 mpegtsmux alignment=
7 name=mux ! rndbuffersize max=
1316 min=
1316 ! \
332 udpsink host=
239.255.0.1 port=
1234 ttl-mc=
1 auto-multicast=
1 sync=
0 \
333 pulsesrc device=$(pactl list | grep -A2 'Source #' | \
334 grep 'Name: .*\.monitor$' | cut -d" " -f2|head -
1) ! \
335 audioconvert ! queue2 ! avenc_aac ! queue2 ! mux.
338 <p>and this on the Kodi end
<p>
341 echo udp://@
239.255.0.1:
1234 \
342 > /storage/videos/screenstream.m3u
345 <p>Note the trick to pick a valid pulseaudio source. It might not
346 pick the one you need. This approach will of course lead to trouble
347 if more than one source uses the same multicast port and address.
348 Note the ttl-mc=
1 setting, which limit the multicast packages to the
349 local network. If the value is increased, your screen will be
350 broadcasted further, one network "hop" for each increase (read up on
351 multicast to learn more. :)!
</p>
353 <p>Having cracked how to get Kodi to receive multicast streams, I
354 could use this VLC command to stream to the same multicast address.
355 The image quality is way better than the rtsp approach, but gstreamer
356 seem to be doing a better job.
</p>
359 cvlc screen:// --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=
800,ab=
128}:rtp{mux=ts,dst=
239.255.0.1,port=
1234,sdp=sap}'
362 <p>As usual, if you use Bitcoin and want to show your support of my
363 activities, please send Bitcoin donations to my address
364 <b><a href=
"bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b
</a></b>.
</p>
370 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>.
375 <div class=
"padding"></div>
379 <a href=
"http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html">What is the most supported MIME type in Debian in
2018?
</a>
386 <a href=
"http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html">I
387 measured what the most supported MIME type in Debian was
</a>, by
388 analysing the desktop files in all packages in the archive. Since
389 then, the DEP-
11 AppStream system has been put into production, making
390 the task a lot easier. This made me want to repeat the measurement,
391 to see how much things changed. Here are the new numbers, for
392 unstable only this time:
394 <p><strong>Debian Unstable:
</strong></p>
398 ----- -----------------------
410 30 audio/x-vorbis+ogg
411 29 image/x-portable-pixmap
413 27 image/x-portable-bitmap
421 <p>The list was created like this using a sid chroot: "cat
422 /var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk '/^
423 - \S+\/\S+$/ {print $
2 }' | sort | uniq -c | sort -nr | head -
20"
</p>
425 <p>It is interesting to see how image formats have passed text/plain
426 as the most announced supported MIME type. These days, thanks to the
427 AppStream system, if you run into a file format you do not know, and
428 want to figure out which packages support the format, you can find the
429 MIME type of the file using "file --mime
<filename
>", and then
430 look up all packages announcing support for this format in their
431 AppStream metadata (XML or .desktop file) using "appstreamcli
432 what-provides mimetype
<mime-type
>. For example if you, like
433 me, want to know which packages support inode/directory, you can get a
437 % appstreamcli what-provides mimetype inode/directory | grep Package: | sort
444 Package: doublecmd-common
446 Package: enlightenment
466 </pre></blockquote></p>
468 <p>Using the same method, I can quickly discover that the Sketchup file
469 format is not yet supported by any package in Debian:
</p>
472 % appstreamcli what-provides mimetype application/vnd.sketchup.skp
473 Could not find component providing 'mimetype::application/vnd.sketchup.skp'.
475 </pre></blockquote></p>
477 <p>Yesterday I used it to figure out which packages support the STL
3D
481 % appstreamcli what-provides mimetype application/sla|grep Package
486 </pre></blockquote></p>
488 <p>PS: A new version of Cura was uploaded to Debian yesterday.
</p>
490 <p>As usual, if you use Bitcoin and want to show your support of my
491 activities, please send Bitcoin donations to my address
492 <b><a href=
"bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b
</a></b>.
</p>
498 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/isenkram">isenkram
</a>.
503 <div class=
"padding"></div>
507 <a href=
"http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html">Debian APT upgrade without enough free space on the disk...
</a>
513 <p>Quite regularly, I let my Debian Sid/Unstable chroot stay untouch
514 for a while, and when I need to update it there is not enough free
515 space on the disk for apt to do a normal 'apt upgrade'. I normally
516 would resolve the issue by doing 'apt install
<somepackages
>' to
517 upgrade only some of the packages in one batch, until the amount of
518 packages to download fall below the amount of free space available.
519 Today, I had about
500 packages to upgrade, and after a while I got
520 tired of trying to install chunks of packages manually. I concluded
521 that I did not have the spare hours required to complete the task, and
522 decided to see if I could automate it. I came up with this small
523 script which I call 'apt-in-chunks':
</p>
528 # Upgrade packages when the disk is too full to upgrade every
529 # upgradable package in one lump. Fetching packages to upgrade using
530 # apt, and then installing using dpkg, to avoid changing the package
531 # flag for manual/automatic.
543 for p in $(apt list --upgradable | ignore "$@" |cut -d/ -f1 | grep -v '^Listing...'); do
546 apt install --download-only -y $p
547 for f in /var/cache/apt/archives/*.deb; do
549 dpkg -i /var/cache/apt/archives/*.deb
554 </pre></blockquote></p>
556 <p>The script will extract the list of packages to upgrade, try to
557 download the packages needed to upgrade one package, install the
558 downloaded packages using dpkg. The idea is to upgrade packages
559 without changing the APT mark for the package (ie the one recording of
560 the package was manually requested or pulled in as a dependency). To
561 use it, simply run it as root from the command line. If it fail, try
562 'apt install -f' to clean up the mess and run the script again. This
563 might happen if the new packages conflict with one of the old
564 packages. dpkg is unable to remove, while apt can do this.
</p>
566 <p>It take one option, a package to ignore in the list of packages to
567 upgrade. The option to ignore a package is there to be able to skip
568 the packages that are simply too large to unpack. Today this was
569 'ghc', but I have run into other large packages causing similar
570 problems earlier (like TeX).
</p>
572 <p>Update
2018-
07-
08: Thanks to Paul Wise, I am aware of two
573 alternative ways to handle this. The "unattended-upgrades
574 --minimal-upgrade-steps" option will try to calculate upgrade sets for
575 each package to upgrade, and then upgrade them in order, smallest set
576 first. It might be a better option than my above mentioned script.
577 Also, "aptutude upgrade" can upgrade single packages, thus avoiding
578 the need for using "dpkg -i" in the script above.
</p>
580 <p>As usual, if you use Bitcoin and want to show your support of my
581 activities, please send Bitcoin donations to my address
582 <b><a href=
"bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b
</a></b>.
</p>
588 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>.
593 <div class=
"padding"></div>
595 <p style=
"text-align: right;"><a href=
"07.rss"><img src=
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5)
</a></li>
644 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/04/">April (
3)
</a></li>
646 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/06/">June (
2)
</a></li>
648 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/07/">July (
5)
</a></li>
650 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/08/">August (
3)
</a></li>
652 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/09/">September (
3)
</a></li>
654 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/10/">October (
5)
</a></li>
656 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/11/">November (
2)
</a></li>
658 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2018/12/">December (
4)
</a></li>
665 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/01/">January (
4)
</a></li>
667 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/02/">February (
3)
</a></li>
669 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/03/">March (
5)
</a></li>
671 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/04/">April (
2)
</a></li>
673 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/06/">June (
5)
</a></li>
675 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/07/">July (
1)
</a></li>
677 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/08/">August (
1)
</a></li>
679 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/09/">September (
3)
</a></li>
681 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/10/">October (
5)
</a></li>
683 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/11/">November (
3)
</a></li>
685 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2017/12/">December (
4)
</a></li>
692 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/01/">January (
3)
</a></li>
694 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/02/">February (
2)
</a></li>
696 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/03/">March (
3)
</a></li>
698 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/04/">April (
8)
</a></li>
700 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/05/">May (
8)
</a></li>
702 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/06/">June (
2)
</a></li>
704 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/07/">July (
2)
</a></li>
706 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/08/">August (
5)
</a></li>
708 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/09/">September (
2)
</a></li>
710 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/10/">October (
3)
</a></li>
712 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/11/">November (
8)
</a></li>
714 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2016/12/">December (
5)
</a></li>
721 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/01/">January (
7)
</a></li>
723 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/02/">February (
6)
</a></li>
725 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/03/">March (
1)
</a></li>
727 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/04/">April (
4)
</a></li>
729 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/05/">May (
3)
</a></li>
731 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/06/">June (
4)
</a></li>
733 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/07/">July (
6)
</a></li>
735 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/08/">August (
2)
</a></li>
737 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/09/">September (
2)
</a></li>
739 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/10/">October (
9)
</a></li>
741 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/11/">November (
6)
</a></li>
743 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2015/12/">December (
3)
</a></li>
750 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/01/">January (
2)
</a></li>
752 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/02/">February (
3)
</a></li>
754 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/03/">March (
8)
</a></li>
756 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/04/">April (
7)
</a></li>
758 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/05/">May (
1)
</a></li>
760 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/06/">June (
2)
</a></li>
762 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/07/">July (
2)
</a></li>
764 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/08/">August (
2)
</a></li>
766 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/09/">September (
5)
</a></li>
768 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/10/">October (
6)
</a></li>
770 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/11/">November (
3)
</a></li>
772 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/12/">December (
5)
</a></li>
779 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/01/">January (
11)
</a></li>
781 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/02/">February (
9)
</a></li>
783 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/03/">March (
9)
</a></li>
785 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/04/">April (
6)
</a></li>
787 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/05/">May (
9)
</a></li>
789 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/06/">June (
10)
</a></li>
791 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/07/">July (
7)
</a></li>
793 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/08/">August (
3)
</a></li>
795 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/09/">September (
5)
</a></li>
797 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/10/">October (
7)
</a></li>
799 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/11/">November (
9)
</a></li>
801 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/12/">December (
3)
</a></li>
808 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/01/">January (
7)
</a></li>
810 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/02/">February (
10)
</a></li>
812 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/03/">March (
17)
</a></li>
814 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/04/">April (
12)
</a></li>
816 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/05/">May (
12)
</a></li>
818 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/06/">June (
20)
</a></li>
820 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/07/">July (
17)
</a></li>
822 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/08/">August (
6)
</a></li>
824 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/09/">September (
9)
</a></li>
826 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/10/">October (
17)
</a></li>
828 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/11/">November (
10)
</a></li>
830 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/12/">December (
7)
</a></li>
837 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/01/">January (
16)
</a></li>
839 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/02/">February (
6)
</a></li>
841 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/03/">March (
6)
</a></li>
843 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/04/">April (
7)
</a></li>
845 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/05/">May (
3)
</a></li>
847 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/06/">June (
2)
</a></li>
849 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/07/">July (
7)
</a></li>
851 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/08/">August (
6)
</a></li>
853 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/09/">September (
4)
</a></li>
855 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/10/">October (
2)
</a></li>
857 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/11/">November (
3)
</a></li>
859 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/12/">December (
1)
</a></li>
866 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/01/">January (
2)
</a></li>
868 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/02/">February (
1)
</a></li>
870 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/03/">March (
3)
</a></li>
872 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/04/">April (
3)
</a></li>
874 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/05/">May (
9)
</a></li>
876 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/06/">June (
14)
</a></li>
878 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/07/">July (
12)
</a></li>
880 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/08/">August (
13)
</a></li>
882 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/09/">September (
7)
</a></li>
884 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/10/">October (
9)
</a></li>
886 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/11/">November (
13)
</a></li>
888 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/12/">December (
12)
</a></li>
895 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/01/">January (
8)
</a></li>
897 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/02/">February (
8)
</a></li>
899 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/03/">March (
12)
</a></li>
901 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/04/">April (
10)
</a></li>
903 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/05/">May (
9)
</a></li>
905 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/06/">June (
3)
</a></li>
907 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/07/">July (
4)
</a></li>
909 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/08/">August (
3)
</a></li>
911 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/09/">September (
1)
</a></li>
913 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/10/">October (
2)
</a></li>
915 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/11/">November (
3)
</a></li>
917 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/12/">December (
3)
</a></li>
924 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/11/">November (
5)
</a></li>
926 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/12/">December (
7)
</a></li>
937 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (
16)
</a></li>
939 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/amiga">amiga (
1)
</a></li>
941 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/aros">aros (
1)
</a></li>
943 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bankid">bankid (
4)
</a></li>
945 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (
8)
</a></li>
947 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (
11)
</a></li>
949 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (
17)
</a></li>
951 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bsa">bsa (
2)
</a></li>
953 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (
2)
</a></li>
955 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian (
168)
</a></li>
957 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (
158)
</a></li>
959 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (
4)
</a></li>
961 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/digistan">digistan (
11)
</a></li>
963 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/dld">dld (
17)
</a></li>
965 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/docbook">docbook (
26)
</a></li>
967 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (
4)
</a></li>
969 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/english">english (
411)
</a></li>
971 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (
23)
</a></li>
973 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
14)
</a></li>
975 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (
34)
</a></li>
977 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (
9)
</a></li>
979 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (
20)
</a></li>
981 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/h264">h264 (
20)
</a></li>
983 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju (
42)
</a></li>
985 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (
16)
</a></li>
987 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
22)
</a></li>
989 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kodi">kodi (
4)
</a></li>
991 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
9)
</a></li>
993 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lego">lego (
4)
</a></li>
995 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
8)
</a></li>
997 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (
2)
</a></li>
999 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li>
1001 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (
8)
</a></li>
1003 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
42)
</a></li>
1005 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (
12)
</a></li>
1007 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/noark5">noark5 (
20)
</a></li>
1009 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
311)
</a></li>
1011 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
196)
</a></li>
1013 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (
37)
</a></li>
1015 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/open311">open311 (
2)
</a></li>
1017 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
75)
</a></li>
1019 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
111)
</a></li>
1021 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/raid">raid (
2)
</a></li>
1023 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reactos">reactos (
1)
</a></li>
1025 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
11)
</a></li>
1027 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid (
3)
</a></li>
1029 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
12)
</a></li>
1031 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li>
1033 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ruter">ruter (
7)
</a></li>
1035 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (
2)
</a></li>
1037 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
56)
</a></li>
1039 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
4)
</a></li>
1041 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (
5)
</a></li>
1043 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
69)
</a></li>
1045 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
6)
</a></li>
1047 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (
12)
</a></li>
1049 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (
57)
</a></li>
1051 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (
4)
</a></li>
1053 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/usenix">usenix (
2)
</a></li>
1055 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/valg">valg (
9)
</a></li>
1057 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (
17)
</a></li>
1059 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
73)
</a></li>
1061 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
4)
</a></li>
1063 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
42)
</a></li>
1069 <p style=
"text-align: right">
1070 Created by
<a href=
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