X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/28f4bb43d9d2970847f90ddcccdb23315b80b4ba..fa4e14fe2faecdba7833edabf9f9fe20fb3be1c7:/blog/index.rss diff --git a/blog/index.rss b/blog/index.rss index 6a14fe8fb7..4fcf4416e6 100644 --- a/blog/index.rss +++ b/blog/index.rss @@ -7,691 +7,1135 @@ - EU-domstolen bekreftet i dag at datalagringsdirektivet er ulovlig - http://people.skolelinux.org/pere/blog/EU_domstolen_bekreftet_i_dag_at_datalagringsdirektivet_er_ulovlig.html - http://people.skolelinux.org/pere/blog/EU_domstolen_bekreftet_i_dag_at_datalagringsdirektivet_er_ulovlig.html - Tue, 8 Apr 2014 11:30:00 +0200 - <p>I dag kom endelig avgjørelsen fra EU-domstolen om -datalagringsdirektivet, som ikke overraskende ble dømt ulovlig og i -strid med borgernes grunnleggende rettigheter. Hvis du lurer på hva -datalagringsdirektivet er for noe, så er det -<a href="http://tv.nrk.no/program/koid75005313/tema-dine-digitale-spor-datalagringsdirektivet">en -flott dokumentar tilgjengelig hos NRK</a> som jeg tidligere -<a href="http://people.skolelinux.org/pere/blog/Dokumentaren_om_Datalagringsdirektivet_sendes_endelig_p__NRK.html">har -anbefalt</a> alle å se.</p> - -<p>Her er et liten knippe nyhetsoppslag om saken, og jeg regner med at -det kommer flere ut over dagen. Flere kan finnes -<a href="http://www.mylder.no/?drill=datalagringsdirektivet&intern=1">via -mylder</a>.</p> + Hva henger under skibrua over E16 på Sollihøgda? + http://people.skolelinux.org/pere/blog/Hva_henger_under_skibrua_over_E16_p__Sollih_gda_.html + http://people.skolelinux.org/pere/blog/Hva_henger_under_skibrua_over_E16_p__Sollih_gda_.html + Sun, 21 Sep 2014 09:50:00 +0200 + <p>Rundt omkring i Oslo og Østlandsområdet henger det bokser over +veiene som jeg har lurt på hva gjør. De har ut fra plassering og +vinkling sett ut som bokser som sniffer ut et eller annet fra +forbipasserende trafikk, men det har vært uklart for meg hva det er de +leser av. Her om dagen tok jeg bilde av en slik boks som henger under +<a href="http://www.openstreetmap.no/?zoom=19&mlat=59.96396&mlon=10.34443&layers=B00000">ei +skibru på Sollihøgda</a>:</p> + +<p align="center"><img width="60%" src="http://people.skolelinux.org/pere/blog/images/2014-09-13-kapsch-sollihogda-crop.jpeg"></p> + +<p>Boksen er tydelig merket «Kapsch >>>», logoen til +<a href="http://www.kapsch.net/">det sveitsiske selskapet Kapsch</a> som +blant annet lager sensorsystemer for veitrafikk. Men de lager mye +forskjellig, og jeg kjente ikke igjen boksen på utseendet etter en +kjapp titt på produktlista til selskapet.</p> + +<p>I og med at boksen henger over veien E16, en riksvei vedlikeholdt +av Statens Vegvesen, så antok jeg at det burde være mulig å bruke +REST-API-et som gir tilgang til vegvesenets database over veier, +skilter og annet veirelatert til å finne ut hva i alle dager dette +kunne være. De har både +<a href="https://www.vegvesen.no/nvdb/api/dokumentasjon/datakatalog">en +datakatalog</a> og +<a href="https://www.vegvesen.no/nvdb/api/dokumentasjon/sok">et +søk</a>, der en kan søke etter ulike typer oppføringer innen for et +gitt geografisk område. Jeg laget et enkelt shell-script for å hente +ut antall av en gitt type innenfor området skibrua dekker, og listet +opp navnet på typene som ble funnet. Orket ikke slå opp hvordan +URL-koding av aktuelle strenger kunne gjøres mer generisk, og brukte +en stygg sed-linje i stedet.</p> + +<blockquote><pre> +#!/bin/sh +urlmap() { + sed \ + -e 's/ / /g' -e 's/{/%7B/g' \ + -e 's/}/%7D/g' -e 's/\[/%5B/g' \ + -e 's/\]/%5D/g' -e 's/ /%20/g' \ + -e 's/,/%2C/g' -e 's/\"/%22/g' \ + -e 's/:/%3A/g' +} + +lookup() { + url="$1" + curl -s -H 'Accept: application/vnd.vegvesen.nvdb-v1+xml' \ + "https://www.vegvesen.no/nvdb/api$url" | xmllint --format - +} + +for id in $(seq 1 874) ; do + search="{ + lokasjon: { + bbox: \"10.34425,59.96386,10.34458,59.96409\", + srid: \"WGS84\" + }, + objektTyper: [{ + id: $id, antall: 10 + }] +}" + + query=/sok?kriterie=$(echo $search | urlmap) + if lookup "$query" | + grep -q '&lt;totaltAntallReturnert>0&lt;' + then + : + else + echo $id + lookup "/datakatalog/objekttyper/$id" |grep '^ &lt;navn>' + fi +done + +exit 0 +</pre></blockquote> + +Aktuelt ID-område 1-874 var riktig i datakatalogen da jeg laget +scriptet. Det vil endre seg over tid. Skriptet listet så opp +aktuelle typer i og rundt skibrua: + +<blockquote><pre> +5 + &lt;navn>Rekkverk&lt;/navn> +14 + &lt;navn>Rekkverksende&lt;/navn> +47 + &lt;navn>Trafikklomme&lt;/navn> +49 + &lt;navn>Trafikkøy&lt;/navn> +60 + &lt;navn>Bru&lt;/navn> +79 + &lt;navn>Stikkrenne/Kulvert&lt;/navn> +80 + &lt;navn>Grøft, åpen&lt;/navn> +86 + &lt;navn>Belysningsstrekning&lt;/navn> +95 + &lt;navn>Skiltpunkt&lt;/navn> +96 + &lt;navn>Skiltplate&lt;/navn> +98 + &lt;navn>Referansestolpe&lt;/navn> +99 + &lt;navn>Vegoppmerking, langsgående&lt;/navn> +105 + &lt;navn>Fartsgrense&lt;/navn> +106 + &lt;navn>Vinterdriftsstrategi&lt;/navn> +172 + &lt;navn>Trafikkdeler&lt;/navn> +241 + &lt;navn>Vegdekke&lt;/navn> +293 + &lt;navn>Breddemåling&lt;/navn> +301 + &lt;navn>Kantklippareal&lt;/navn> +318 + &lt;navn>Snø-/isrydding&lt;/navn> +445 + &lt;navn>Skred&lt;/navn> +446 + &lt;navn>Dokumentasjon&lt;/navn> +452 + &lt;navn>Undergang&lt;/navn> +528 + &lt;navn>Tverrprofil&lt;/navn> +532 + &lt;navn>Vegreferanse&lt;/navn> +534 + &lt;navn>Region&lt;/navn> +535 + &lt;navn>Fylke&lt;/navn> +536 + &lt;navn>Kommune&lt;/navn> +538 + &lt;navn>Gate&lt;/navn> +539 + &lt;navn>Transportlenke&lt;/navn> +540 + &lt;navn>Trafikkmengde&lt;/navn> +570 + &lt;navn>Trafikkulykke&lt;/navn> +571 + &lt;navn>Ulykkesinvolvert enhet&lt;/navn> +572 + &lt;navn>Ulykkesinvolvert person&lt;/navn> +579 + &lt;navn>Politidistrikt&lt;/navn> +583 + &lt;navn>Vegbredde&lt;/navn> +591 + &lt;navn>Høydebegrensning&lt;/navn> +592 + &lt;navn>Nedbøyningsmåling&lt;/navn> +597 + &lt;navn>Støy-luft, Strekningsdata&lt;/navn> +601 + &lt;navn>Oppgravingsdata&lt;/navn> +602 + &lt;navn>Oppgravingslag&lt;/navn> +603 + &lt;navn>PMS-parsell&lt;/navn> +604 + &lt;navn>Vegnormalstrekning&lt;/navn> +605 + &lt;navn>Værrelatert strekning&lt;/navn> +616 + &lt;navn>Feltstrekning&lt;/navn> +617 + &lt;navn>Adressepunkt&lt;/navn> +626 + &lt;navn>Friksjonsmåleserie&lt;/navn> +629 + &lt;navn>Vegdekke, flatelapping&lt;/navn> +639 + &lt;navn>Kurvatur, horisontalelement&lt;/navn> +640 + &lt;navn>Kurvatur, vertikalelement&lt;/navn> +642 + &lt;navn>Kurvatur, vertikalpunkt&lt;/navn> +643 + &lt;navn>Statistikk, trafikkmengde&lt;/navn> +647 + &lt;navn>Statistikk, vegbredde&lt;/navn> +774 + &lt;navn>Nedbøyningsmåleserie&lt;/navn> +775 + &lt;navn>ATK, influensstrekning&lt;/navn> +794 + &lt;navn>Systemobjekt&lt;/navn> +810 + &lt;navn>Vinterdriftsklasse&lt;/navn> +821 + &lt;navn>Funksjonell vegklasse&lt;/navn> +825 + &lt;navn>Kurvatur, stigning&lt;/navn> +838 + &lt;navn>Vegbredde, beregnet&lt;/navn> +862 + &lt;navn>Reisetidsregistreringspunkt&lt;/navn> +871 + &lt;navn>Bruksklasse&lt;/navn> +</pre></blockquote> + +<p>Av disse ser ID 775 og 862 mest relevant ut. ID 775 antar jeg +refererer til fotoboksen som står like ved brua, mens +«Reisetidsregistreringspunkt» kanskje kan være boksen som henger der. +Hvordan finner jeg så ut hva dette kan være for noe. En titt på +<a href="http://labs.vegdata.no/nvdb-datakatalog/862-Reisetidsregistreringspunkt/">datakatalogsiden +for ID 862/Reisetidsregistreringspunkt</a> viser at det er finnes 53 +slike målere i Norge, og hvor de er plassert, men gir ellers få +detaljer. Det er plassert 40 på østlandet og 13 i Trondheimsregionen. +Men siden nevner «AutoPASS», og hvis en slår opp oppføringen på +Sollihøgda nevner den «Ciber AS» som ID for eksternt system. (Kan det +være snakk om +<a href="http://www.proff.no/selskap/ciber-norge-as/oslo/internettdesign-og-programmering/Z0I3KMF4/">Ciber +Norge AS</a>, et selskap eid av Ciber Europe Bv?) Et nettsøk på + «Ciber AS autopass» fører meg til en artikkel fra NRK Trøndelag i + 2013 med tittel +«<a href="http://www.nrk.no/trondelag/sjekk-dette-hvis-du-vil-unnga-ko-1.11327947">Sjekk +dette hvis du vil unngå kø</a>». Artikkelen henviser til vegvesenets +nettside +<a href="http://www.reisetider.no/reisetid/forside.html">reisetider.no</a> +som har en +<a href="http://www.reisetider.no/reisetid/omrade.html?omrade=5">kartside +for Østlandet</a> som viser at det måles mellom Sandvika og Sollihøgda. +Det kan dermed se ut til at jeg har funnet ut hva boksene gjør.</p> + +<p>Hvis det stemmer, så er dette bokser som leser av AutoPASS-ID-en +til alle passerende biler med AutoPASS-brikke, og dermed gjør det mulig +for de som kontrollerer boksene å holde rede på hvor en gitt bil er +når den passerte et slikt målepunkt. NRK-artikkelen forteller at +denne informasjonen i dag kun brukes til å koble to +AutoPASS-brikkepasseringer passeringer sammen for å beregne +reisetiden, og at bruken er godkjent av Datatilsynet. Det er desverre +ikke mulig for en sjåfør som passerer under en slik boks å kontrollere +at AutoPASS-ID-en kun brukes til dette i dag og i fremtiden.</p> + +<p>I tillegg til denne type AutoPASS-sniffere vet jeg at det også +finnes mange automatiske stasjoner som tar betalt pr. passering (aka +bomstasjoner), og der lagres informasjon om tid, sted og bilnummer i +10 år. Finnes det andre slike sniffere plassert ut på veiene?</p> + +<p>Personlig har jeg valgt å ikke bruke AutoPASS-brikke, for å gjøre +det vanskeligere og mer kostbart for de som vil invadere privatsfæren +og holde rede på hvor bilen min beveger seg til enhver tid. Jeg håper +flere vil gjøre det samme, selv om det gir litt høyere private +utgifter (dyrere bompassering). Vern om privatsfæren koster i disse +dager.</p> + +<p>Takk til Jan Kristian Jensen i Statens Vegvesen for tips om +dokumentasjon på vegvesenets REST-API.</p> + + + + + Speeding up the Debian installer using eatmydata and dpkg-divert + http://people.skolelinux.org/pere/blog/Speeding_up_the_Debian_installer_using_eatmydata_and_dpkg_divert.html + http://people.skolelinux.org/pere/blog/Speeding_up_the_Debian_installer_using_eatmydata_and_dpkg_divert.html + Tue, 16 Sep 2014 14:00:00 +0200 + <p>The <a href="https://www.debian.org/">Debian</a> installer could be +a lot quicker. When we install more than 2000 packages in +<a href="http://www.skolelinux.org/">Skolelinux / Debian Edu</a> using +tasksel in the installer, unpacking the binary packages take forever. +A part of the slow I/O issue was discussed in +<a href="https://bugs.debian.org/613428">bug #613428</a> about too +much file system sync-ing done by dpkg, which is the package +responsible for unpacking the binary packages. Other parts (like code +executed by postinst scripts) might also sync to disk during +installation. All this sync-ing to disk do not really make sense to +me. If the machine crash half-way through, I start over, I do not try +to salvage the half installed system. So the failure sync-ing is +supposed to protect against, hardware or system crash, is not really +relevant while the installer is running.</p> + +<p>A few days ago, I thought of a way to get rid of all the file +system sync()-ing in a fairly non-intrusive way, without the need to +change the code in several packages. The idea is not new, but I have +not heard anyone propose the approach using dpkg-divert before. It +depend on the small and clever package +<a href="https://packages.qa.debian.org/eatmydata">eatmydata</a>, which +uses LD_PRELOAD to replace the system functions for syncing data to +disk with functions doing nothing, thus allowing programs to live +dangerous while speeding up disk I/O significantly. Instead of +modifying the implementation of dpkg, apt and tasksel (which are the +packages responsible for selecting, fetching and installing packages), +it occurred to me that we could just divert the programs away, replace +them with a simple shell wrapper calling +"eatmydata&nbsp;$program&nbsp;$@", to get the same effect. +Two days ago I decided to test the idea, and wrapped up a simple +implementation for the Debian Edu udeb.</p> + +<p>The effect was stunning. In my first test it reduced the running +time of the pkgsel step (installing tasks) from 64 to less than 44 +minutes (20 minutes shaved off the installation) on an old Dell +Latitude D505 machine. I am not quite sure what the optimised time +would have been, as I messed up the testing a bit, causing the debconf +priority to get low enough for two questions to pop up during +installation. As soon as I saw the questions I moved the installation +along, but do not know how long the question were holding up the +installation. I did some more measurements using Debian Edu Jessie, +and got these results. The time measured is the time stamp in +/var/log/syslog between the "pkgsel: starting tasksel" and the +"pkgsel: finishing up" lines, if you want to do the same measurement +yourself. In Debian Edu, the tasksel dialog do not show up, and the +timing thus do not depend on how quickly the user handle the tasksel +dialog.</p> + +<p><table> + +<tr> +<th>Machine/setup</th> +<th>Original tasksel</th> +<th>Optimised tasksel</th> +<th>Reduction</th> +</tr> + +<tr> +<td>Latitude D505 Main+LTSP LXDE</td> +<td>64 min (07:46-08:50)</td> +<td><44 min (11:27-12:11)</td> +<td>>20 min 18%</td> +</tr> + +<tr> +<td>Latitude D505 Roaming LXDE</td> +<td>57 min (08:48-09:45)</td> +<td>34 min (07:43-08:17)</td> +<td>23 min 40%</td> +</tr> + +<tr> +<td>Latitude D505 Minimal</td> +<td>22 min (10:37-10:59)</td> +<td>11 min (11:16-11:27)</td> +<td>11 min 50%</td> +</tr> + +<tr> +<td>Thinkpad X200 Minimal</td> +<td>6 min (08:19-08:25)</td> +<td>4 min (08:04-08:08)</td> +<td>2 min 33%</td> +</tr> + +<tr> +<td>Thinkpad X200 Roaming KDE</td> +<td>19 min (09:21-09:40)</td> +<td>15 min (10:25-10:40)</td> +<td>4 min 21%</td> +</tr> + +</table></p> + +<p>The test is done using a netinst ISO on a USB stick, so some of the +time is spent downloading packages. The connection to the Internet +was 100Mbit/s during testing, so downloading should not be a +significant factor in the measurement. Download typically took a few +seconds to a few minutes, depending on the amount of packages being +installed.</p> + +<p>The speedup is implemented by using two hooks in +<a href="https://www.debian.org/devel/debian-installer/">Debian +Installer</a>, the pre-pkgsel.d hook to set up the diverts, and the +finish-install.d hook to remove the divert at the end of the +installation. I picked the pre-pkgsel.d hook instead of the +post-base-installer.d hook because I test using an ISO without the +eatmydata package included, and the post-base-installer.d hook in +Debian Edu can only operate on packages included in the ISO. The +negative effect of this is that I am unable to activate this +optimization for the kernel installation step in d-i. If the code is +moved to the post-base-installer.d hook, the speedup would be larger +for the entire installation.</p> + +<p>I've implemented this in the +<a href="https://packages.qa.debian.org/debian-edu-install">debian-edu-install</a> +git repository, and plan to provide the optimization as part of the +Debian Edu installation. If you want to test this yourself, you can +create two files in the installer (or in an udeb). One shell script +need do go into /usr/lib/pre-pkgsel.d/, with content like this:</p> -<p><ul> +<p><blockquote><pre> +#!/bin/sh +set -e +. /usr/share/debconf/confmodule +info() { + logger -t my-pkgsel "info: $*" +} +error() { + logger -t my-pkgsel "error: $*" +} +override_install() { + apt-install eatmydata || true + if [ -x /target/usr/bin/eatmydata ] ; then + for bin in dpkg apt-get aptitude tasksel ; do + file=/usr/bin/$bin + # Test that the file exist and have not been diverted already. + if [ -f /target$file ] ; then + info "diverting $file using eatmydata" + printf "#!/bin/sh\neatmydata $bin.distrib \"\$@\"\n" \ + > /target$file.edu + chmod 755 /target$file.edu + in-target dpkg-divert --package debian-edu-config \ + --rename --quiet --add $file + ln -sf ./$bin.edu /target$file + else + error "unable to divert $file, as it is missing." + fi + done + else + error "unable to find /usr/bin/eatmydata after installing the eatmydata pacage" + fi +} + +override_install +</pre></blockquote></p> + +<p>To clean up, another shell script should go into +/usr/lib/finish-install.d/ with code like this: -<li><a href="http://e24.no/digital/eu-domstolen-datalagringsdirektivet-er-ugyldig/22879592">EU-domstolen: -Datalagringsdirektivet er ugyldig</a> - e24.no 2014-04-08 +<p><blockquote><pre> +#! /bin/sh -e +. /usr/share/debconf/confmodule +error() { + logger -t my-finish-install "error: $@" +} +remove_install_override() { + for bin in dpkg apt-get aptitude tasksel ; do + file=/usr/bin/$bin + if [ -x /target$file.edu ] ; then + rm /target$file + in-target dpkg-divert --package debian-edu-config \ + --rename --quiet --remove $file + rm /target$file.edu + else + error "Missing divert for $file." + fi + done + sync # Flush file buffers before continuing +} + +remove_install_override +</pre></blockquote></p> -<li><a href="http://www.aftenposten.no/nyheter/iriks/EU-domstolen-Datalagringsdirektivet-er-ulovlig-7529032.html">EU-domstolen: -Datalagringsdirektivet er ulovlig</a> - aftenposten.no 2014-04-08 +<p>In Debian Edu, I placed both code fragments in a separate script +edu-eatmydata-install and call it from the pre-pkgsel.d and +finish-install.d scripts.</p> + +<p>By now you might ask if this change should get into the normal +Debian installer too? I suspect it should, but am not sure the +current debian-installer coordinators find it useful enough. It also +depend on the side effects of the change. I'm not aware of any, but I +guess we will see if the change is safe after some more testing. +Perhaps there is some package in Debian depending on sync() and +fsync() having effect? Perhaps it should go into its own udeb, to +allow those of us wanting to enable it to do so without affecting +everyone.</p> + +<p>Update 2014-09-24: Since a few days ago, enabling this optimization +will break installation of all programs using gnutls because of +<ahref="https://bugs.debian.org/702711">bug #702711. An updated +eatmydata package in Debian will solve it.</p> + + + + + Good bye subkeys.pgp.net, welcome pool.sks-keyservers.net + http://people.skolelinux.org/pere/blog/Good_bye_subkeys_pgp_net__welcome_pool_sks_keyservers_net.html + http://people.skolelinux.org/pere/blog/Good_bye_subkeys_pgp_net__welcome_pool_sks_keyservers_net.html + Wed, 10 Sep 2014 13:10:00 +0200 + <p>Yesterday, I had the pleasure of attending a talk with the +<a href="http://www.nuug.no/">Norwegian Unix User Group</a> about +<a href="http://www.nuug.no/aktiviteter/20140909-sks-keyservers/">the +OpenPGP keyserver pool sks-keyservers.net</a>, and was very happy to +learn that there is a large set of publicly available key servers to +use when looking for peoples public key. So far I have used +subkeys.pgp.net, and some times wwwkeys.nl.pgp.net when the former +were misbehaving, but those days are ended. The servers I have used +up until yesterday have been slow and some times unavailable. I hope +those problems are gone now.</p> + +<p>Behind the round robin DNS entry of the +<a href="https://sks-keyservers.net/">sks-keyservers.net</a> service +there is a pool of more than 100 keyservers which are checked every +day to ensure they are well connected and up to date. It must be +better than what I have used so far. :)</p> + +<p>Yesterdays speaker told me that the service is the default +keyserver provided by the default configuration in GnuPG, but this do +not seem to be used in Debian. Perhaps it should?</p> + +<p>Anyway, I've updated my ~/.gnupg/options file to now include this +line:</p> -<li><a href="http://www.aftenposten.no/nyheter/iriks/politikk/Krever-DLD-stopp-i-Norge-7530086.html">Krever -DLD-stopp i Norge</a> - aftenposten.no 2014-04-08 +<p><blockquote><pre> +keyserver pool.sks-keyservers.net +</pre></blockquote></p> + +<p>With GnuPG version 2 one can also locate the keyserver using SRV +entries in DNS. Just for fun, I did just that at work, so now every +user of GnuPG at the University of Oslo should find a OpenGPG +keyserver automatically should their need it:</p> + +<p><blockquote><pre> +% host -t srv _pgpkey-http._tcp.uio.no +_pgpkey-http._tcp.uio.no has SRV record 0 100 11371 pool.sks-keyservers.net. +% +</pre></blockquote></p> -<li><a href="http://www.p4.no/story.aspx?id=566431">Apenes: - En -gledens dag</a> - p4.no 2014-04-08 +<p>Now if only +<a href="http://ietfreport.isoc.org/idref/draft-shaw-openpgp-hkp/">the +HKP lookup protocol</a> supported finding signature paths, I would be +very happy. It can look up a given key or search for a user ID, but I +normally do not want that, but to find a trust path from my key to +another key. Given a user ID or key ID, I would like to find (and +download) the keys representing a signature path from my key to the +key in question, to be able to get a trust path between the two keys. +This is as far as I can tell not possible today. Perhaps something +for a future version of the protocol?</p> + + + + + Do you need an agreement with MPEG-LA to publish and broadcast H.264 video in Norway? + http://people.skolelinux.org/pere/blog/Do_you_need_an_agreement_with_MPEG_LA_to_publish_and_broadcast_H_264_video_in_Norway_.html + http://people.skolelinux.org/pere/blog/Do_you_need_an_agreement_with_MPEG_LA_to_publish_and_broadcast_H_264_video_in_Norway_.html + Mon, 25 Aug 2014 22:10:00 +0200 + <p>Two years later, I am still not sure if it is legal here in Norway +to use or publish a video in H.264 or MPEG4 format edited by the +commercially licensed video editors, without limiting the use to +create "personal" or "non-commercial" videos or get a license +agreement with <a href="http://www.mpegla.com">MPEG LA</a>. If one +want to publish and broadcast video in a non-personal or commercial +setting, it might be that those tools can not be used, or that video +format can not be used, without breaking their copyright license. I +am not sure. +<a href="http://people.skolelinux.org/pere/blog/Trenger_en_avtale_med_MPEG_LA_for___publisere_og_kringkaste_H_264_video_.html">Back +then</a>, I found that the copyright license terms for Adobe Premiere +and Apple Final Cut Pro both specified that one could not use the +program to produce anything else without a patent license from MPEG +LA. The issue is not limited to those two products, though. Other +much used products like those from Avid and Sorenson Media have terms +of use are similar to those from Adobe and Apple. The complicating +factor making me unsure if those terms have effect in Norway or not is +that the patents in question are not valid in Norway, but copyright +licenses are.</p> + +<p>These are the terms for Avid Artist Suite, according to their +<a href="http://www.avid.com/US/about-avid/legal-notices/legal-enduserlicense2">published +end user</a> +<a href="http://www.avid.com/static/resources/common/documents/corporate/LICENSE.pdf">license +text</a> (converted to lower case text for easier reading):</p> -<li><a href="http://www.nrk.no/norge/_-datalagringsdirektivet-er-ugyldig-1.11655929">EU-domstolen: -– Datalagringsdirektivet er ugyldig</a> - nrk.no 2014-04-08</li> +<p><blockquote> +<p>18.2. MPEG-4. MPEG-4 technology may be included with the +software. MPEG LA, L.L.C. requires this notice: </p> + +<p>This product is licensed under the MPEG-4 visual patent portfolio +license for the personal and non-commercial use of a consumer for (i) +encoding video in compliance with the MPEG-4 visual standard (“MPEG-4 +video”) and/or (ii) decoding MPEG-4 video that was encoded by a +consumer engaged in a personal and non-commercial activity and/or was +obtained from a video provider licensed by MPEG LA to provide MPEG-4 +video. No license is granted or shall be implied for any other +use. Additional information including that relating to promotional, +internal and commercial uses and licensing may be obtained from MPEG +LA, LLC. See http://www.mpegla.com. This product is licensed under +the MPEG-4 systems patent portfolio license for encoding in compliance +with the MPEG-4 systems standard, except that an additional license +and payment of royalties are necessary for encoding in connection with +(i) data stored or replicated in physical media which is paid for on a +title by title basis and/or (ii) data which is paid for on a title by +title basis and is transmitted to an end user for permanent storage +and/or use, such additional license may be obtained from MPEG LA, +LLC. See http://www.mpegla.com for additional details.</p> + +<p>18.3. H.264/AVC. H.264/AVC technology may be included with the +software. MPEG LA, L.L.C. requires this notice:</p> + +<p>This product is licensed under the AVC patent portfolio license for +the personal use of a consumer or other uses in which it does not +receive remuneration to (i) encode video in compliance with the AVC +standard (“AVC video”) and/or (ii) decode AVC video that was encoded +by a consumer engaged in a personal activity and/or was obtained from +a video provider licensed to provide AVC video. No license is granted +or shall be implied for any other use. Additional information may be +obtained from MPEG LA, L.L.C. See http://www.mpegla.com.</p> +</blockquote></p> -<li><a href="http://www.vg.no/nyheter/utenriks/data-og-nett/eu-domstolen-datalagringsdirektivet-er-ugyldig/a/10130280/">EU-domstolen: -Datalagringsdirektivet er ugyldig</a> - vg.no 2014-04-08</li> +<p>Note the requirement that the videos created can only be used for +personal or non-commercial purposes.</p> -<li><a href="http://www.dagbladet.no/2014/04/08/nyheter/innenriks/datalagringsdirektivet/personvern/32711646/">- -Vi bør skrote hele datalagringsdirektivet</a> - dagbladet.no -2014-04-08</li> +<p>The Sorenson Media software have +<a href="http://www.sorensonmedia.com/terms/">similar terms</a>:</p> -<li><a href="http://www.digi.no/928137/eu-domstolen-dld-er-ugyldig">EU-domstolen: -DLD er ugyldig</a> - digi.no 2014-04-08</li> +<p><blockquote> -<li><a href="http://www.irishtimes.com/business/sectors/technology/european-court-declares-data-retention-directive-invalid-1.1754150">European -court declares data retention directive invalid</a> - irishtimes.com -2014-04-08</li> +<p>With respect to a license from Sorenson pertaining to MPEG-4 Video +Decoders and/or Encoders: Any such product is licensed under the +MPEG-4 visual patent portfolio license for the personal and +non-commercial use of a consumer for (i) encoding video in compliance +with the MPEG-4 visual standard (“MPEG-4 video”) and/or (ii) decoding +MPEG-4 video that was encoded by a consumer engaged in a personal and +non-commercial activity and/or was obtained from a video provider +licensed by MPEG LA to provide MPEG-4 video. No license is granted or +shall be implied for any other use. Additional information including +that relating to promotional, internal and commercial uses and +licensing may be obtained from MPEG LA, LLC. See +http://www.mpegla.com.</p> + +<p>With respect to a license from Sorenson pertaining to MPEG-4 +Consumer Recorded Data Encoder, MPEG-4 Systems Internet Data Encoder, +MPEG-4 Mobile Data Encoder, and/or MPEG-4 Unique Use Encoder: Any such +product is licensed under the MPEG-4 systems patent portfolio license +for encoding in compliance with the MPEG-4 systems standard, except +that an additional license and payment of royalties are necessary for +encoding in connection with (i) data stored or replicated in physical +media which is paid for on a title by title basis and/or (ii) data +which is paid for on a title by title basis and is transmitted to an +end user for permanent storage and/or use. Such additional license may +be obtained from MPEG LA, LLC. See http://www.mpegla.com for +additional details.</p> -<li><a href="http://www.reuters.com/article/2014/04/08/us-eu-data-ruling-idUSBREA370F020140408?feedType=RSS">EU -court rules against requirement to keep data of telecom users</a> - -reuters.com 2014-04-08</li> +</blockquote></p> -</ul> -</p> - -<p>Jeg synes det er veldig fint at nok en stemme slår fast at -totalitær overvåkning av befolkningen er uakseptabelt, men det er -fortsatt like viktig å beskytte privatsfæren som før, da de -teknologiske mulighetene fortsatt finnes og utnyttes, og jeg tror -innsats i prosjekter som -<a href="https://wiki.debian.org/FreedomBox">Freedombox</a> og -<a href="http://www.dugnadsnett.no/">Dugnadsnett</a> er viktigere enn -noen gang.</p> +<p>Some free software like +<a href="https://handbrake.fr/">Handbrake</A> and +<a href="http://ffmpeg.org/">FFMPEG</a> uses GPL/LGPL licenses and do +not have any such terms included, so for those, there is no +requirement to limit the use to personal and non-commercial.</p> - ReactOS Windows clone - nice free software - http://people.skolelinux.org/pere/blog/ReactOS_Windows_clone___nice_free_software.html - http://people.skolelinux.org/pere/blog/ReactOS_Windows_clone___nice_free_software.html - Tue, 1 Apr 2014 12:10:00 +0200 - <p>Microsoft have announced that Windows XP reaches its end of life -2014-04-08, in 7 days. But there are heaps of machines still running -Windows XP, and depending on Windows XP to run their applications, and -upgrading will be expensive, both when it comes to money and when it -comes to the amount of effort needed to migrate from Windows XP to a -new operating system. Some obvious options (buy new a Windows -machine, buy a MacOSX machine, install Linux on the existing machine) -are already well known and covered elsewhere. Most of them involve -leaving the user applications installed on Windows XP behind and -trying out replacements or updated versions. In this blog post I want -to mention one strange bird that allow people to keep the hardware and -the existing Windows XP applications and run them on a free software -operating system that is Windows XP compatible.</p> - -<p><a href="http://www.reactos.org/">ReactOS</a> is a free software -operating system (GNU GPL licensed) working on providing a operating -system that is binary compatible with Windows, able to run windows -programs directly and to use Windows drivers for hardware directly. -The project goal is for Windows user to keep their existing machines, -drivers and software, and gain the advantages from user a operating -system without usage limitations caused by non-free licensing. It is -a Windows clone running directly on the hardware, so quite different -from the approach taken by <a href="http://www.winehq.org/">the Wine -project</a>, which make it possible to run Windows binaries on -Linux.</p> - -<p>The ReactOS project share code with the Wine project, so most -shared libraries available on Windows are already implemented already. -There is also a software manager like the one we are used to on Linux, -allowing the user to install free software applications with a simple -click directly from the Internet. Check out the -<a href="http://www.reactos.org/screenshots">screen shots on the -project web site</a> for an idea what it look like (it looks just like -Windows before metro).</p> - -<p>I do not use ReactOS myself, preferring Linux and Unix like -operating systems. I've tested it, and it work fine in a virt-manager -virtual machine. The browser, minesweeper, notepad etc is working -fine as far as I can tell. Unfortunately, my main test application -is the software included on a CD with the Lego Mindstorms NXT, which -seem to install just fine from CD but fail to leave any binaries on -the disk after the installation. So no luck with that test software. -No idea why, but hope someone else figure out and fix the problem. -I've tried the ReactOS Live ISO on a physical machine, and it seemed -to work just fine. If you like Windows and want to keep running your -old Windows binaries, check it out by -<a href="http://www.reactos.org/download">downloading</a> the -installation CD, the live CD or the preinstalled virtual machine -image.</p> + Lenker for 2014-08-03 + http://people.skolelinux.org/pere/blog/Lenker_for_2014_08_03.html + http://people.skolelinux.org/pere/blog/Lenker_for_2014_08_03.html + Sun, 3 Aug 2014 23:00:00 +0200 + <p>Lenge siden jeg har hatt tid til å publisere lenker til skriverier +jeg har hatt glede og nytte av av å lese. Her er en liten norsk +lenkesamling.</p> + +<p><ul> + +<li><a href="http://www.nrk.no/ytring/sjoslag-om-fiskemilliardene-1.11576109">Sjøslag +om fiskemilliardene</a> (NRK Ytring 2014-03-03) - litt om hvordan de +norske felles matressurser røves fra felleskapet.</li> + +<li><a href="http://www.aftenposten.no/nyheter/Matkrisen-kan-komme-til-Norge-7522341.html">Matkrisen +kan komme til Norge</a> (Aftenposten 2014-4-01) - hvordan miljøendringene vil gjøre matproduksjonen i Norge mer sårbar.</li> + +<li><a href="http://www.nrk.no/ytring/norge-trenger-kornlager-1.11726744">Norge +trenger kornlager</a> (NRK Ytring 2014-06-07) Chr. Anton Smedshaug +forteller litt om Norges sårbare matsituasjon etter at Staten solgte +Norges kornlager.</li> + +<li><a href="http://www.nrk.no/norge/pst-vil-overvake-datatastaturer-1.11583286">PST +vil overvåke datatastaturer</a> (NRK 2014-03-04) - PST ønsker retten +til å bryte seg inn på private PC-er og legge inn spionprogrammer. +Hvilket nok vil gjøre Linux mer populært, men gjør at en i enda mindre +grad enn i dag kan stole på datamaskiner - neppe en god ide for +samfunnet totalt sett.</li> + +<li><a href="http://www.osloby.no/nyheter/Ruter-fremstar-som-et-pobelvelde-7490624.html">«Ruter +fremstår som et pøbelvelde»</a> (OsloBy 2014-03-05) - et eksempel på +hvordan kollektivtransportselskapet i Oslo håndterer sine kunder.</li> + +<li><a href="http://www.dagbladet.no/2014/03/05/nyheter/dbtv/reklame/clear_channel/32123808/">Clear +Channel nektet å vise Greenpeace-reklame i Oslo</a> (Dagbladet +2014-03-05) - forteller litt om hvordan hvilke budskap som når ut i +det offentlige rom kontrolleres i Norge.</li> + +<li><a href="http://www.dagbladet.no/2014/03/06/kultur/meninger/debattinnlegg/kronikk/22_juli/32175854/">Svarte +ikke på kritikken</a> (Dagbladet 2014-03-06) - innlegg fra Norsk +presseforbund der de nok en gang tar opp det forkastelige i at +politiet nå har full tilgang til å bedrive telefonkontroll av +advokater.</li> + +<li><a href="http://www.aftenposten.no/nyheter/uriks/Putin-spiller-poker_-ikke-sjakk-I-sjakk-har-man-regler-7495368.html">«Putin +spiller poker, ikke sjakk. I sjakk har man regler.»</a> (Aftenposten +2014-03-08) - sjakklegenden Kasparov forklarer litt om hvordan han ser +at Russlands politikk fungerer, blant annet i lys av started av +Ukraina-krisen.</li> + +<li><a href="http://www.aftenposten.no/meninger/kronikker/I-seng-med-fienden-7492605.html">I +seng med fienden</a> (Aftenposten 2014-03-10) - kronikk fra Eirik +H. Vinje om hvordan menn og kvinner settes opp mot hverandre i det +offentlige ordskiftet, kanskje på sviktende grunnlag.</li> + +<li><a href="http://www.aftenposten.no/amagasinet/Hvor-er-elevene-7501690.html">Fritt +frem for skulk</a> (Aftenposten 2014-03-14) - skildring av hvordan +norske elever i dag ikke lenger har rimelig krav om oppmøte på +skolen.</li> + +<li><a href="http://www.aftenposten.no/digital/Datalagringsdirektiv-avslorte-abort_-sykdom-og-vapenkjop--7503014.html">«Datalagringsdirektiv» +avslørte abort, sykdom og våpenkjøp</a> (Aftenposten 2014-03-14) - om +hvordan forskere har dokumentert hvordan innsamling av metadata om +telefoni og Internett-bruk kan være svært avslørende.</li> + +<li><a href="http://www.dagbladet.no/2014/03/14/kultur/meninger/ideer/lordagskommentaren/agnes_ravatn/32302856/">Konsentrasjonssvikt +på pensum</a> (Dagbladet 2014-03-14) - Kommentar om hvordan (feil) +bruk IKT i skolen kan ødelegge mer enn det bidrar til læring.</li> + +<li><a href="http://doremusnor.wordpress.com/2014/02/09/reservasjonsrettsstaten/">Reservasjonsrettsstaten</a> +(blogg fra Doremus 2014-02-09) - morsom beskrivelse om hvordan +regjeringens forslag til reservasjonsrett for leger kan utvides til å +gjelde alles samvittighet.</li> + +<li><a href="http://www.aftenposten.no/meninger/kronikker/Autoritar-gjokunge-7514915.html">Autoritær +gjøkunge</a> (Aftenposten 2014-03-25) - Kronikk av Bjørn Stærk om +snurpenots-overvåkningen som varsleren Snowden dokumenterte.</li> + +<li><a href="http://blogg.friprog.no/2014/03/leveransekrise-i-offentlig-sektor-mener-mike-bracken-executive-director-of-digital-in-the-cabinet-office/">Leveransekrise +i Offentlig sektor – mener Mike Bracken, Executive Director of Digital +in the Cabinet Office</a> (blogg fra Friprog-senteret 2014-03-26).</li> + +<li><a href="http://www.dagbladet.no/2014/03/26/kultur/meninger/kronikk/etiopia/avlytting/32499687/">Norge +må stanse avlyttingen</a> (Dagbladet 2014-03-26) - leserinnlegg fra +Felix Horne der han ber om at Norge gjør en innsats for å få slutt på +overvåkning av innbyggerne som gjøres i Norge av Etiopiske +myndigheter.</li> + +<li><a href="http://www.aftenposten.no/meninger/kronikker/Demokrati-er-ingen-naturlig-styreform-7521957.html">Demokrati +er ingen naturlig styreform</a> (Aftenposten 2014-04-01) - kronikk av +Stein Ringen om hvordan demokrati som styreform går tapt når +innbyggerne tar det for gitt.</li> + +<li><a href="http://www.nrk.no/ytring/ytringsansvar-ere-enhver-tilladte_-1.11618934">Ytringsansvar +ere Enhver tilladte!</a> (NRK Ytring 2014-04-01) - innspill fra Trygve +Svensson og Helge Svare om at hver enkelt av oss har et ansvar for å +ytre oss i den offentlige debatten.</li> + +<li><a href="http://www.aftenposten.no/meninger/Jeg-er-ingen-god-samfunnsborger-7527128.html">Jeg +er ingen god samfunnsborger</a> (Aftenposten 2014-04-16), kronikk av +Simen Tveitereid om alternative måter å motiveres i samfunnet, uten å +hige etter mer penger og flere ting.</li> + +<li><a href="http://www.aftenposten.no/meninger/debatt/Avgjorelsen-far-umiddelbar-virkning-7531811.html">DLD-dommen: +Avgjørelsen får umiddelbar virkning</a> (Aftenposten 2014-04-10) - +kronikk av Høyres Michael Tetzschner, en partiutbryter i DLD-saken som +stemte nei til DLD i Stortinget i 2011.</li> + +<li><a href="http://www.uhuru.biz/?p=1466">Datalagringsdirektivets +endelikt</a> (blogg fra John Wessel-Aas 2014-04-11) - oppsummering +av hvordan direktivet ble funnet ugyldig i EU-domstolen.</li> + +<li><a href="http://www.vg.no/nyheter/meninger/kronikk-kapitulasjonspresidenten/a/10147713/">Kronikk: +Kapitulasjonspresidenten</a> (VG 2014-04-22) - kronikk av Einar +Kr. Steffenak om hvordan Stortingspresidenten og regjeringen viser sin +prinsippløshet i møte med Kina.</li> + +<li><a href="http://www.aftenposten.no/meninger/kronikker/Innerst-inne-er-alle-nordmenn-7542617.html">Innerst +inne er alle nordmenn</a> (Aftenposten 2014-04-27) - kronikk fra Bjørn +Stærk om hvordan vi i Vesten i stor grad baserer oss på en fantasi om +at alle i verden bærer på en drøm om å bli som oss.</li> + +<li><a href="http://www.aftenposten.no/viten/uviten/Det-italienske-senatet-gav-seg-selv-134-milliarder-euro-i-sluttpakke--7575312.html">Det +italienske senatet gav seg selv 134 milliarder euro i sluttpakke</a> +(Aftenposten 2014-06-19) - forsker Simen Gaure forteller hvordan +løgner og fantasi fra nettkilder i stor grad blir akseptert som +sannhet - antagelig også av deg og meg.</li> + +<li><a href="http://www.dagbladet.no/2014/05/30/kultur/meninger/kronikk/skole/33576392/">Et +forsvar for bråkmakerne</a> (Dagbladet 2014-05-30) - kronikk av Dag +Øystein Nome som beskriver hvordan dagens skole ikke fungerer så godt +for mange elever.</li> + +<li><a href="http://www.osloby.no/nyheter/Betalte-med-slitt-seddel---havnet-i-arresten-7617208.html">Betalte +med slitt seddel - havnet i arresten</a> (Osloby 2014-06-25)) - +dokumentasjon av Oslopolitiets angrep på vår alles rett til å ferdes +uten elektronisk sporing. Jeg bruker kontanter i så stor grad som +mulig da banken ikke har noe med hvor jeg er og hva jeg kjøper. Vi +som gjør dette risikerer som beskrevet overgrep som frihetsberøvelse +og registrering og lagring av fingeravtrykk og bilde i politiets +database over mistenkte.</li> + +<li><a href="http://www.aftenposten.no/meninger/leder/Fredsprisen-til-Snowden-7620422.html">Fredsprisen +til Snowden</a> (Aftenposten 2014-06-28) - leder som forklarer hvorfor +varsleren Snowden bør få fredsprisen.</li> + +<li><a href="http://www.dagbladet.no/2014/08/01/kultur/meninger/dbmener/leder1/34598010/">Strategi +for politistaten</a> (Dagbladet 2014-08-01) - leder som advarer om +sterke krefter som bruker terrortrusselen til å lirke Norge nærmere å +bli en politistat.</li> + +<li><a href="http://www.nrk.no/ytring/vi-ma-tenke-nytt-om-narkotika-1.11859322">Vi +må tenke nytt om narkotika</a> (NRK Ytring 2014-08-03) - Mark Lewis +forklarer hvorfor legalisering og offentlig kontroll av +narkotikamarkedet er mye bedre enn å overlate det til kriminelle.</li> + + +</ul></p> - Debian Edu interview: Roger Marsal - http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Roger_Marsal.html - http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Roger_Marsal.html - Sun, 30 Mar 2014 11:40:00 +0200 - <p><a href="http://www.skolelinux.org/">Debian Edu / Skolelinux</a> -keep gaining new users. Some weeks ago, a person showed up on IRC, -<a href="irc://irc.debian.org/#debian-edu">#debian-edu</a>, with a -wish to contribute, and I managed to get a interview with this great -contributor Roger Marsal to learn more about his background.</p> + Debian Edu interview: Bernd Zeitzen + http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Bernd_Zeitzen.html + http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Bernd_Zeitzen.html + Thu, 31 Jul 2014 08:30:00 +0200 + <p>The complete and free “out of the box” software solution for +schools, <a href="http://www.skolelinux.org/">Debian Edu / +Skolelinux</a>, is used quite a lot in Germany, and one of the people +involved is Bernd Zeitzen, who show up on the project mailing lists +from time to time with interesting questions and tips on how to adjust +the setup. I managed to interview him this summer.</p> <p><strong>Who are you, and how do you spend your days?</strong></p> -<p>My name is Roger Marsal, I'm 27 years old (1986 generation) and I -live in Barcelona, Spain. I've got a strong business background and I -work as a patrimony manager and as a real estate agent. Additionally, -I've co-founded a British based tech company that is nowadays on the -last development phase of a new social networking concept.</p> - -<p>I'm a Linux enthusiast that started its journey with Ubuntu four years -ago and have recently switched to Debian seeking rock solid stability -and as a necessary step to gain expertise.</p> - -<p>In a nutshell, I spend my days working and learning as much as I -can to face both my job, entrepreneur project and feed my Linux -hunger.</p> +<p>My name is Bernd Zeitzen and I'm married with Hedda, a self +employed physiotherapist. My former profession is tool maker, but I +haven't worked for 30 years in this job. 30 years ago I started to +support my wife and become her officeworker and a few years later the +administrator for a small computer network, today based on Ubuntu +Server (Samba, OpenVPN). For her daily work she has to use Windows +Desktops because the software she needs to organize her business only +works with Windows . :-(</p> + +<p>In 1988 we started with one PC and DOS, then I learned to use +Windows 98, 2000, XP, …, 8, Ubuntu, MacOSX. Today we are running a +Linux server with 6 Windows clients and 10 persons (teacher of +children with special needs, speech therapist, occupational therapist, +psychologist and officeworkers) using our Samba shares via OpenVPN to +work with the documentations of our patients.</p> <p><strong>How did you get in contact with the Skolelinux / Debian Edu project?</strong></p> -<p>I discovered the <a href="http://www.ltsp.org/">LTSP</a> advantages -with "Ubuntu 12.04 alternate install" and after a year of use I -started looking for an alternative. Even though I highly value and -respect the Ubuntu project, I thought it was necessary for me to -change to a more robust and stable alternative. As far as I was using -Debian on my personal laptop I thought it would be fine to install -Debian and configure an LTSP server myself. Surprised, I discovered -that the Debian project also supported a kind of Edubuntu equivalent, -and after having some pain I obtained a Debian Edu network up and -running. I just loved it.</p> +<p>Two years ago a friend of mine asked me, if I want to get a job in +his school (<a href="http://www.gymnasium-harsewinkel.de/">Gymnasium +Harsewinkel</a>). They started with Skolelinux / Debian Edu and they +were looking for people to give support to the teachers using the +software and the network and teaching the pupils increasing their +computer skills in optional lessons. I'm spending 4-6 hours a week +with this job.</p> <p><strong>What do you see as the advantages of Skolelinux / Debian Edu?</strong></p> -<p>I found a main advantage in that, once you know "the tips and -tricks", a new installation just works out of the box. It's the most -complete alternative I've found to create an LTSP network. All the -other distributions seems to be made of plastic, Debian Edu seems to -be made of steel.</p> +<p>The independence.</p> -<p><strong>What do you see as the disadvantages of Skolelinux / Debian -Edu?</strong></p> +<p>First: Every person is allowed to use, share and develop the +software. Even if you are poor, you are allowed to use the software +included in Skolelinux/Debian Edu and all the other Free Software.</p> -<p>I found two main disadvantages.</p> +<p>Second: The software runs on old machines and this gives us the +possibility to recycle computers, weeded out from offices. The +servers and desktops are running for more than two years and they are +working reliable. </p> -<p>I'm not an expert but I've got notions and I had to spent a considerable -amount of time trying to bring up a standard network topology. I'm quite -stubborn and I just worked until I did but I'm sure many people with few -resources (not big schools, but academies for example) would have switched -or dropped.</p> +<p>We have two servers (one tjener and one terminal server), 45 +workstations in three classrooms and seven laptops as a mobile +solution for all classrooms. These machines are all booting from the +terminal server. In the moment we are installing 30 laptops as mobile +workstations. Then the pupils have the possibility to work with these +machines in their classrooms. Internet access is realized by a WLAN +router, connected to the schools network. This is all done without a +dedicated system administrator or a computer science teacher.</p> -<p>It's amazing how such a complex system like Debian Edu has achieved -this out-of-the-box state. Even though tweaking without breaking gets -more difficult, as more factors have to be considered. This can -discourage many people too.</p> +<p><strong>What do you see as the disadvantages of Skolelinux / Debian +Edu?</strong></p> -<p><strong>Which free software do you use daily?</strong></p> +<p>Teachers and pupils are Windows users. &lt;Irony on&gt; And Linux +isn't cool. It's software for freaks using the command line. &lt;Irony +off&gt; They don't realize the stability of the system. </p> -<p>I use Debian, Firefox, Okular, Inkscape, LibreOffice and -Virtualbox.</p> +<p><strong>Which free software do you use daily?</strong></p> +<p>Firefox, Thunderbird, LibreOffice, Ubuntu Server 12.04 (Samba, +Apache, MySQL, Joomla!, … and Skolelinux / Debian Edu)</p> <p><strong>Which strategy do you believe is the right one to use to get schools to use free software?</strong></p> -<p>I don't think there is a need for a particular strategy. The free -attribute in both "freedom" and "no price" meanings is what will -really bring free software to schools. In my experience I can think of -the <a href="http://www.r-project.org/">"R" statistical language</a>; a -few years a ago was an extremely nerd tool for university people. -Today it's being increasingly used to teach statistics at many -different level of studies. I believe free and open software will -increasingly gain popularity, but I'm sure schools will be one of the -first scenarios where this will happen.</p> +<p>In Germany we have the situation: every school is free to decide +which software they want to use. This decision is influenced by +teachers who learned to use Windows and MS Office. They buy a PC with +Windows preinstalled and an additional testing version of MS +Office. They don't know about the possibility to use Free Software +instead. Another problem are the publisher of school books. They +develop their software, added to the school books, for Windows.</p> - Dokumentaren om Datalagringsdirektivet sendes endelig på NRK - http://people.skolelinux.org/pere/blog/Dokumentaren_om_Datalagringsdirektivet_sendes_endelig_p__NRK.html - http://people.skolelinux.org/pere/blog/Dokumentaren_om_Datalagringsdirektivet_sendes_endelig_p__NRK.html - Wed, 26 Mar 2014 09:50:00 +0100 - <p><a href="http://www.nuug.no/">Foreningen NUUG</a> melder i natt at -NRK nå har bestemt seg for -<a href="http://www.nuug.no/news/NRK_viser_filmen_om_Datalagringsdirektivet_f_rste_gang_2014_03_31.shtml">når -den norske dokumentarfilmen om datalagringsdirektivet skal -sendes</a> (se <a href="http://www.imdb.com/title/tt2832844/">IMDB</a> -for detaljer om filmen) . Første visning blir på NRK2 mandag -2014-03-31 kl. 19:50, og deretter visninger onsdag 2014-04-02 -kl. 12:30, fredag 2014-04-04 kl. 19:40 og søndag 2014-04-06 kl. 15:10. -Jeg har sett dokumentaren, og jeg anbefaler enhver å se den selv. Som -oppvarming mens vi venter anbefaler jeg Bjørn Stærks kronikk i -Aftenposten fra i går, -<a href="http://www.aftenposten.no/meninger/kronikker/Autoritar-gjokunge-7514915.html">Autoritær -gjøkunge</a>, der han gir en grei skisse av hvor ille det står til med -retten til privatliv og beskyttelsen av demokrati i Norge og resten -verden, og helt riktig slår fast at det er vi i databransjen som -sitter med nøkkelen til å gjøre noe med dette. Jeg har involvert meg -i prosjektene <a href="http://www.dugnadsnett.no/">dugnadsnett.no</a> -og <a href="https://wiki.debian.org/FreedomBox">FreedomBox</a> for å -forsøke å gjøre litt selv for å bedre situasjonen, men det er mye -hardt arbeid fra mange flere enn meg som gjenstår før vi kan sies å ha -gjenopprettet balansen.</p> - -<p>Jeg regner med at nettutgaven dukker opp på -<a href="http://tv.nrk.no/program/koid75005313/tema-dine-digitale-spor-datalagringsdirektivet">NRKs -side om filmen om datalagringsdirektivet</a> om fem dager. Hold et -øye med siden, og tips venner og slekt om at de også bør se den.</p> + 98.6 percent done with the Norwegian draft translation of Free Culture + http://people.skolelinux.org/pere/blog/98_6_percent_done_with_the_Norwegian_draft_translation_of_Free_Culture.html + http://people.skolelinux.org/pere/blog/98_6_percent_done_with_the_Norwegian_draft_translation_of_Free_Culture.html + Wed, 23 Jul 2014 22:40:00 +0200 + <p>This summer I finally had time to continue working on the Norwegian +<a href="http://www.docbook.org/">docbook</a> version of the 2004 book +<a href="http://free-culture.cc/">Free Culture</a> by Lawrence Lessig, +to get a Norwegian text explaining the problems with todays copyright +law. Yesterday, I finally completed translated the book text. There +are still some foot/end notes left to translate, the colophon page +need to be rewritten, and a few words and phrases still need to be +translated, but the Norwegian text is ready for the first proof +reading. :) More spell checking is needed, and several illustrations +need to be cleaned up. The work stopped up because I had to give +priority to other projects the last year, and the progress graph of +the translation show this very well:</p> + +<p><img width="80%" align="center" src="https://github.com/petterreinholdtsen/free-culture-lessig/raw/master/progress.png"></p> + +<p>If you want to read the result, check out the +<a href="https://github.com/petterreinholdtsen/free-culture-lessig">github</a> +project pages and the +<a href="https://github.com/petterreinholdtsen/free-culture-lessig/blob/master/archive/freeculture.nb.pdf?raw=true">PDF</a>, +<a href="https://github.com/petterreinholdtsen/free-culture-lessig/blob/master/archive/freeculture.nb.epub?raw=true">EPUB</a> +and HTML version available in the +<a href="https://github.com/petterreinholdtsen/free-culture-lessig/tree/master/archive">archive +directory</a>.</p> + +<p>Please report typos, bugs and improvements to the github project if +you find any.</p> - Public Trusted Timestamping services for everyone - http://people.skolelinux.org/pere/blog/Public_Trusted_Timestamping_services_for_everyone.html - http://people.skolelinux.org/pere/blog/Public_Trusted_Timestamping_services_for_everyone.html - Tue, 25 Mar 2014 12:50:00 +0100 - <p>Did you ever need to store logs or other files in a way that would -allow it to be used as evidence in court, and needed a way to -demonstrate without reasonable doubt that the file had not been -changed since it was created? Or, did you ever need to document that -a given document was received at some point in time, like some -archived document or the answer to an exam, and not changed after it -was received? The problem in these settings is to remove the need to -trust yourself and your computers, while still being able to prove -that a file is the same as it was at some given time in the past.</p> - -<p>A solution to these problems is to have a trusted third party -"stamp" the document and verify that at some given time the document -looked a given way. Such -<a href="https://en.wikipedia.org/wiki/Notarius">notarius</a> service -have been around for thousands of years, and its digital equivalent is -called a -<a href="http://en.wikipedia.org/wiki/Trusted_timestamping">trusted -timestamping service</a>. <a href="http://www.ietf.org/">The Internet -Engineering Task Force</a> standardised how such service could work a -few years ago as <a href="http://tools.ietf.org/html/rfc3161">RFC -3161</a>. The mechanism is simple. Create a hash of the file in -question, send it to a trusted third party which add a time stamp to -the hash and sign the result with its private key, and send back the -signed hash + timestamp. Both email, FTP and HTTP can be used to -request such signature, depending on what is provided by the service -used. Anyone with the document and the signature can then verify that -the document matches the signature by creating their own hash and -checking the signature using the trusted third party public key. -There are several commercial services around providing such -timestamping. A quick search for -"<a href="https://duckduckgo.com/?q=rfc+3161+service">rfc 3161 -service</a>" pointed me to at least -<a href="https://www.digistamp.com/technical/how-a-digital-time-stamp-works/">DigiStamp</a>, -<a href="http://www.quovadisglobal.co.uk/CertificateServices/SigningServices/TimeStamp.aspx">Quo -Vadis</a>, -<a href="https://www.globalsign.com/timestamp-service/">Global Sign</a> -and <a href="http://www.globaltrustfinder.com/TSADefault.aspx">Global -Trust Finder</a>. The system work as long as the private key of the -trusted third party is not compromised.</p> - -<p>But as far as I can tell, there are very few public trusted -timestamp services available for everyone. I've been looking for one -for a while now. But yesterday I found one over at -<a href="https://www.pki.dfn.de/zeitstempeldienst/">Deutches -Forschungsnetz</a> mentioned in -<a href="http://www.d-mueller.de/blog/dealing-with-trusted-timestamps-in-php-rfc-3161/">a -blog by David Müller</a>. I then found -<a href="http://www.rz.uni-greifswald.de/support/dfn-pki-zertifikate/zeitstempeldienst.html">a -good recipe on how to use the service</a> over at the University of -Greifswald.</p> - -<p><a href="http://www.openssl.org/">The OpenSSL library</a> contain -both server and tools to use and set up your own signing service. See -the ts(1SSL), tsget(1SSL) manual pages for more details. The -following shell script demonstrate how to extract a signed timestamp -for any file on the disk in a Debian environment:</p> - -<p><blockquote><pre> -#!/bin/sh -set -e -url="http://zeitstempel.dfn.de" -caurl="https://pki.pca.dfn.de/global-services-ca/pub/cacert/chain.txt" -reqfile=$(mktemp -t tmp.XXXXXXXXXX.tsq) -resfile=$(mktemp -t tmp.XXXXXXXXXX.tsr) -cafile=chain.txt -if [ ! -f $cafile ] ; then - wget -O $cafile "$caurl" -fi -openssl ts -query -data "$1" -cert | tee "$reqfile" \ - | /usr/lib/ssl/misc/tsget -h "$url" -o "$resfile" -openssl ts -reply -in "$resfile" -text 1>&2 -openssl ts -verify -data "$1" -in "$resfile" -CAfile "$cafile" 1>&2 -base64 < "$resfile" -rm "$reqfile" "$resfile" -</pre></blockquote></p> - -<p>The argument to the script is the file to timestamp, and the output -is a base64 encoded version of the signature to STDOUT and details -about the signature to STDERR. Note that due to -<a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742553">a bug -in the tsget script</a>, you might need to modify the included script -and remove the last line. Or just write your own HTTP uploader using -curl. :) Now you too can prove and verify that files have not been -changed.</p> - -<p>But the Internet need more public trusted timestamp services. -Perhaps something for <a href="http://www.uninett.no/">Uninett</a> or -my work place the <a href="http://www.uio.no/">University of Oslo</a> -to set up?</p> - - - - - Video DVD reader library / python-dvdvideo - nice free software - http://people.skolelinux.org/pere/blog/Video_DVD_reader_library___python_dvdvideo___nice_free_software.html - http://people.skolelinux.org/pere/blog/Video_DVD_reader_library___python_dvdvideo___nice_free_software.html - Fri, 21 Mar 2014 15:25:00 +0100 - <p>Keeping your DVD collection safe from scratches and curious -children fingers while still having it available when you want to see a -movie is not straight forward. My preferred method at the moment is -to store a full copy of the ISO on a hard drive, and use VLC, Popcorn -Hour or other useful players to view the resulting file. This way the -subtitles and bonus material are still available and using the ISO is -just like inserting the original DVD record in the DVD player.</p> - -<p>Earlier I used dd for taking security copies, but it do not handle -DVDs giving read errors (which are quite a few of them). I've also -tried using -<a href="http://people.skolelinux.org/pere/blog/Ripping_problematic_DVDs_using_dvdbackup_and_genisoimage.html">dvdbackup -and genisoimage</a>, but these days I use the marvellous python library -and program -<a href="http://bblank.thinkmo.de/blog/new-software-python-dvdvideo">python-dvdvideo</a> -written by Bastian Blank. It is -<a href="http://packages.qa.debian.org/p/python-dvdvideo.html">in Debian -already</a> and the binary package name is python3-dvdvideo. Instead -of trying to read every block from the DVD, it parses the file -structure and figure out which block on the DVD is actually in used, -and only read those blocks from the DVD. This work surprisingly well, -and I have been able to almost backup my entire DVD collection using -this method.</p> - -<p>So far, python-dvdvideo have failed on between 10 and -20 DVDs, which is a small fraction of my collection. The most common -problem is -<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=720831">DVDs -using UTF-16 instead of UTF-8 characters</a>, which according to -Bastian is against the DVD specification (and seem to cause some -players to fail too). A rarer problem is what seem to be inconsistent -DVD structures, as the python library -<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=723079">claim -there is a overlap between objects</a>. An equally rare problem claim -<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741878">some -value is out of range</a>. No idea what is going on there. I wish I -knew enough about the DVD format to fix these, to ensure my movie -collection will stay with me in the future.</p> - -<p>So, if you need to keep your DVDs safe, back them up using -python-dvdvideo. :)</p> - - - - - Norsk utgave av Alaveteli / WhatDoTheyKnow på trappene - http://people.skolelinux.org/pere/blog/Norsk_utgave_av_Alaveteli___WhatDoTheyKnow_p__trappene.html - http://people.skolelinux.org/pere/blog/Norsk_utgave_av_Alaveteli___WhatDoTheyKnow_p__trappene.html - Sun, 16 Mar 2014 09:30:00 +0100 - <p>Det offentlige Norge har mye kunnskap og informasjon. Men hvordan -kan en få tilgang til den på en enkel måte? Takket være et lite -knippe lover og tilhørende forskrifter, blant annet -<a href="http://lovdata.no/dokument/NL/lov/2006-05-19-16">offentlighetsloven</a>, -<a href="http://lovdata.no/dokument/NL/lov/2003-05-09-31">miljøinformasjonsloven</a> -og -<a href="http://lovdata.no/dokument/NL/lov/1967-02-10/">forvaltningsloven</a> -har en rett til å spørre det offentlige og få svar. Men det finnes -intet offentlig arkiv over hva andre har spurt om, og dermed risikerer en -å måtte forstyrre myndighetene gang på gang for å få tak i samme -informasjonen på nytt. <a href="http://www.mysociety.org/">Britiske -mySociety</a> har laget tjenesten -<a href="http://www.whatdotheyknow.com/">WhatDoTheyKnow</a> som gjør -noe med dette. I Storbritannia blir WhatdoTheyKnow brukt i -<a href="http://www.mysociety.org/2011/07/01/whatdotheyknows-share-of-central-government-foi-requests-q2-2011/">ca -15% av alle innsynsforespørsler mot sentraladministrasjonen</a>. -Prosjektet heter <a href="http://www.alaveteli.org/">Alaveteli</A>, og -er takk i bruk en rekke steder etter at løsningen ble generalisert og -gjort mulig å oversette. Den hjelper borgerne med å be om innsyn, -rådgir ved purringer og klager og lar alle se hvilke henvendelser som -er sendt til det offentlige og hvilke svar som er kommet inn, i et -søkpart arkiv. Her i Norge holder vi i foreningen NUUG på å få opp en -norsk utgave av Alaveteli, og her trenger vi din hjelp med -oversettelsen.</p> - -<p>Så langt er 76 % av Alaveteli oversatt til norsk bokmål, men vi -skulle gjerne vært oppe i 100 % før lansering. Oversettelsen gjøres -på <a href="https://www.transifex.com/projects/p/alaveteli/">Transifex, -der enhver som registrerer seg</a> og ber om tilgang til -bokmålsoversettelsen får bidra. Vi har satt opp en test av tjenesten -(som ikke sender epost til det offentlige, kun til oss som holder på å -sette opp tjenesten) på maskinen -<a href="http://alaveteli-dev.nuug.no/">alaveteli-dev.nuug.no</a>, der -en kan se hvordan de oversatte meldingen blir seende ut på nettsiden. -Når tjenesten lanseres vil den hete -<a href="https://www.mimesbrønn.no/">Mimes brønn</a>, etter -visdomskilden som Odin måtte gi øyet sitt for å få drikke i. Den -nettsiden er er ennå ikke klar til bruk.</p> - -<p>Hvis noen vil oversette til nynorsk også, så skal vi finne ut -hvordan vi lager en flerspråklig tjeneste. Men i første omgang er -fokus på bokmålsoversettelsen, der vi selv har nok peiling til å ha -fått oversatt 76%, men trenger hjelp for å komme helt i mål. :)</p> + From English wiki to translated PDF and epub via Docbook + http://people.skolelinux.org/pere/blog/From_English_wiki_to_translated_PDF_and_epub_via_Docbook.html + http://people.skolelinux.org/pere/blog/From_English_wiki_to_translated_PDF_and_epub_via_Docbook.html + Tue, 17 Jun 2014 11:30:00 +0200 + <p>The <a href="http://www.skolelinux.org/">Debian Edu / Skolelinux +project</a> provide an instruction manual for teachers, system +administrators and other users that contain useful tips for setting up +and maintaining a Debian Edu installation. This text is about how the +text processing of this manual is handled in the project.</p> + +<p>One goal of the project is to provide information in the native +language of its users, and for this we need to handle translations. +But we also want to make sure each language contain the same +information, so for this we need a good way to keep the translations +in sync. And we want it to be easy for our users to improve the +documentation, avoiding the need to learn special formats or tools to +contribute, and the obvious way to do this is to make it possible to +edit the documentation using a web browser. We also want it to be +easy for translators to keep the translation up to date, and give them +help in figuring out what need to be translated. Here is the list of +tools and the process we have found trying to reach all these +goals.</p> + +<p>We maintain the authoritative source of our manual in the +<a href="https://wiki.debian.org/DebianEdu/Documentation/Wheezy/">Debian +wiki</a>, as several wiki pages written in English. It consist of one +front page with references to the different chapters, several pages +for each chapter, and finally one "collection page" gluing all the +chapters together into one large web page (aka +<a href="https://wiki.debian.org/DebianEdu/Documentation/Wheezy/AllInOne">the +AllInOne page</a>). The AllInOne page is the one used for further +processing and translations. Thanks to the fact that the +<a href="http://moinmo.in/">MoinMoin</a> installation on +wiki.debian.org support exporting pages in +<a href="http://www.docbook.org/">the Docbook format</a>, we can fetch +the list of pages to export using the raw version of the AllInOne +page, loop over each of them to generate a Docbook XML version of the +manual. This process also download images and transform image +references to use the locally downloaded images. The generated +Docbook XML files are slightly broken, so some post-processing is done +using the <tt>documentation/scripts/get_manual</tt> program, and the +result is a nice Docbook XML file (debian-edu-wheezy-manual.xml) and +a handfull of images. The XML file can now be used to generate PDF, HTML +and epub versions of the English manual. This is the basic step of +our process, making PDF (using dblatex), HTML (using xsltproc) and +epub (using dbtoepub) version from Docbook XML, and the resulting files +are placed in the debian-edu-doc-en binary package.</p> + +<p>But English documentation is not enough for us. We want translated +documentation too, and we want to make it easy for translators to +track the English original. For this we use the +<a href="http://packages.qa.debian.org/p/poxml.html">poxml</a> package, +which allow us to transform the English Docbook XML file into a +translation file (a .pot file), usable with the normal gettext based +translation tools used by those translating free software. The pot +file is used to create and maintain translation files (several .po +files), which the translations update with the native language +translations of all titles, paragraphs and blocks of text in the +original. The next step is combining the original English Docbook XML +and the translation file (say debian-edu-wheezy-manual.nb.po), to +create a translated Docbook XML file (in this case +debian-edu-wheezy-manual.nb.xml). This translated (or partly +translated, if the translation is not complete) Docbook XML file can +then be used like the original to create a PDF, HTML and epub version +of the documentation.</p> + +<p>The translators use different tools to edit the .po files. We +recommend using +<a href="http://www.kde.org/applications/development/lokalize/">lokalize</a>, +while some use emacs and vi, others can use web based editors like +<a href="http://pootle.translatehouse.org/">Poodle</a> or +<a href="https://www.transifex.com/">Transifex</a>. All we care about +is where the .po file end up, in our git repository. Updated +translations can either be committed directly to git, or submitted as +<a href="https://bugs.debian.org/src:debian-edu-doc">bug reports +against the debian-edu-doc package</a>.</p> + +<p>One challenge is images, which both might need to be translated (if +they show translated user applications), and are needed in different +formats when creating PDF and HTML versions (epub is a HTML version in +this regard). For this we transform the original PNG images to the +needed density and format during build, and have a way to provide +translated images by storing translated versions in +images/$LANGUAGECODE/. I am a bit unsure about the details here. The +package maintainers know more.</p> + +<p>If you wonder what the result look like, we provide +<a href="http://maintainer.skolelinux.org/debian-edu-doc/">the content +of the documentation packages on the web</a>. See for example the +<a href="http://maintainer.skolelinux.org/debian-edu-doc/it/debian-edu-wheezy-manual.pdf">Italian +PDF version</a> or the +<a href="http://maintainer.skolelinux.org/debian-edu-doc/de/debian-edu-wheezy-manual.html">German +HTML version</a>. We do not yet build the epub version by default, +but perhaps it will be done in the future.</p> + +<p>To learn more, check out +<a href="http://packages.qa.debian.org/d/debian-edu-doc.html">the +debian-edu-doc package</a>, +<a href="https://wiki.debian.org/DebianEdu/Documentation/Wheezy/">the +manual on the wiki</a> and +<a href="https://wiki.debian.org/DebianEdu/Documentation/Wheezy/Translations">the +translation instructions</a> in the manual.</p> - Freedombox on Dreamplug, Raspberry Pi and virtual x86 machine - http://people.skolelinux.org/pere/blog/Freedombox_on_Dreamplug__Raspberry_Pi_and_virtual_x86_machine.html - http://people.skolelinux.org/pere/blog/Freedombox_on_Dreamplug__Raspberry_Pi_and_virtual_x86_machine.html - Fri, 14 Mar 2014 11:00:00 +0100 - <p>The <a href="https://wiki.debian.org/FreedomBox">Freedombox -project</a> is working on providing the software and hardware for -making it easy for non-technical people to host their data and -communication at home, and being able to communicate with their -friends and family encrypted and away from prying eyes. It has been -going on for a while, and is slowly progressing towards a new test -release (0.2).</p> - -<p>And what day could be better than the Pi day to announce that the -new version will provide "hard drive" / SD card / USB stick images for -Dreamplug, Raspberry Pi and VirtualBox (or any other virtualization -system), and can also be installed using a Debian installer preseed -file. The Debian based Freedombox is now based on Debian Jessie, -where most of the needed packages used are already present. Only one, -the freedombox-setup package, is missing. To try to build your own -boot image to test the current status, fetch the freedom-maker scripts -and build using -<a href="http://packages.qa.debian.org/vmdebootstrap">vmdebootstrap</a> -with a user with sudo access to become root: - -<pre> -git clone http://anonscm.debian.org/git/freedombox/freedom-maker.git \ - freedom-maker -sudo apt-get install git vmdebootstrap mercurial python-docutils \ - mktorrent extlinux virtualbox qemu-user-static binfmt-support \ - u-boot-tools -make -C freedom-maker dreamplug-image raspberry-image virtualbox-image -</pre> - -<p>Root access is needed to run debootstrap and mount loopback -devices. See the README for more details on the build. If you do not -want all three images, trim the make line. But note that thanks to <a -href="https://bugs.debian.org/741407">a race condition in -vmdebootstrap</a>, the build might fail without the patch to the -kpartx call.</p> - -<p>If you instead want to install using a Debian CD and the preseed -method, boot a Debian Wheezy ISO and use this boot argument to load -the preseed values:</p> - -<pre> -url=<a href="http://www.reinholdtsen.name/freedombox/preseed-jessie.dat">http://www.reinholdtsen.name/freedombox/preseed-jessie.dat</a> -</pre> - -<p>But note that due to <a href="https://bugs.debian.org/740673">a -recently introduced bug in apt in Jessie</a>, the installer will -currently hang while setting up APT sources. Killing the -'<tt>apt-cdrom ident</tt>' process when it hang a few times during the -installation will get the installation going. This affect all -installations in Jessie, and I expect it will be fixed soon.</p> - -<p>Give it a go and let us know how it goes on the mailing list, and help -us get the new release published. :) Please join us on -<a href="irc://irc.debian.org:6667/%23freedombox">IRC (#freedombox on -irc.debian.org)</a> and -<a href="http://lists.alioth.debian.org/mailman/listinfo/freedombox-discuss">the -mailing list</a> if you want to help make this vision come true.</p> + Hvordan enkelt laste ned filmer fra NRK med den "nye" løsningen + http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK_med_den__nye__l_sningen.html + http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK_med_den__nye__l_sningen.html + Mon, 16 Jun 2014 19:20:00 +0200 + <p>Jeg har fortsatt behov for å kunne laste ned innslag fra NRKs +nettsted av og til for å se senere når jeg ikke er på nett, men +<a href="http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK.html">min +oppskrift fra 2011</a> sluttet å fungere da NRK byttet +avspillermetode. I dag fikk jeg endelig lett etter oppdatert løsning, +og jeg er veldig glad for å fortelle at den enkleste måten å laste ned +innslag er å bruke siste versjon 2014.06.07 av +<a href="http://rg3.github.io/youtube-dl/">youtube-dl</a>. Støtten i +youtube-dl <a href="https://github.com/rg3/youtube-dl/issues/2980">kom +inn for 23 dager siden</a> og +<a href="http://packages.qa.debian.org/y/youtube-dl.html">versjonen i +Debian</a> fungerer fint også som backport til Debian Wheezy. Det er +et lite problem, det håndterer kun URLer med små bokstaver, men hvis +en har en URL med store bokstaver kan en bare gjøre alle store om til +små bokstaver for å få youtube-dl til å laste ned. Rapporterte +nettopp +<a href="https://github.com/rg3/youtube-dl/issues/2980">problemet til +utviklerne</a>, og antar de får fikset det snart.</p> + +<p>Dermed er alt klart til å laste ned dokumentarene om +<a href="http://tv.nrk.no/program/KOID23005014/usas-hemmelige-avlytting">USAs +hemmelige avlytting</a> og +<a href="http://tv.nrk.no/program/KOID23005114/selskapene-bak-usas-avlytting">Selskapene +bak USAs avlytting</a>, i tillegg til +<a href="http://tv.nrk.no/program/KOID20005814/et-moete-med-edward-snowden">intervjuet +med Edward Snowden gjort av den tyske tv-kanalen ARD</a>. Anbefaler +alle å se disse, sammen med +<a href="http://media.ccc.de/browse/congress/2013/30C3_-_5713_-_en_-_saal_2_-_201312301130_-_to_protect_and_infect_part_2_-_jacob.html">foredraget +til Jacob Appelbaum på siste CCC-konferanse</a>, for å forstå mer om +hvordan overvåkningen av borgerne brer om seg.</p> + +<p>Takk til gode venner på foreningen NUUGs IRC-kanal +<a href="irc://irc.freenode.net/%23nuug">#nuug på irc.freenode.net</a> +for tipsene som fikk meg i mål</a>.</p> + +<p><strong>Oppdatering 2014-06-17</strong>: Etter at jeg publiserte +denne, ble jeg tipset om bloggposten +"<a href="http://ingvar.blog.redpill-linpro.com/2012/05/31/downloading-hd-content-from-tv-nrk-no/">Downloading +HD content from tv.nrk.no</a>" av Ingvar Hagelund, som har alternativ +implementasjon og tips for å lage mkv-fil med undertekstene inkludert. +Kanskje den passer bedre for deg? I tillegg ble feilen i youtube-dl +ble fikset litt senere ut på dagen i går, samt at youtube-dl fikk +støtte for å laste ned undertitler. Takk til Anders Einar Hilden for +god innsats og youtube-dl-utviklerne for rask respons.</p> - How to add extra storage servers in Debian Edu / Skolelinux - http://people.skolelinux.org/pere/blog/How_to_add_extra_storage_servers_in_Debian_Edu___Skolelinux.html - http://people.skolelinux.org/pere/blog/How_to_add_extra_storage_servers_in_Debian_Edu___Skolelinux.html - Wed, 12 Mar 2014 12:50:00 +0100 - <p>On larger sites, it is useful to use a dedicated storage server for -storing user home directories and data. The design for handling this -in <a href="http://www.skolelinux.org/">Debian Edu / Skolelinux</a>, is -to update the automount rules in LDAP and let the automount daemon on -the clients take care of the rest. I was reminded about the need to -document this better when one of the customers of -<a href="http://www.slxdrift.no/">Skolelinux Drift AS</a>, where I am -on the board of directors, asked about how to do this. The steps to -get this working are the following:</p> - -<p><ol> - -<li>Add new storage server in DNS. I use nas-server.intern as the -example host here.</li> - -<li>Add automoun LDAP information about this server in LDAP, to allow -all clients to automatically mount it on reqeust.</li> - -<li>Add the relevant entries in tjener.intern:/etc/fstab, because -tjener.intern do not use automount to avoid mounting loops.</li> + Free software car computer solution? + http://people.skolelinux.org/pere/blog/Free_software_car_computer_solution_.html + http://people.skolelinux.org/pere/blog/Free_software_car_computer_solution_.html + Thu, 29 May 2014 18:45:00 +0200 + <p>Dear lazyweb. I'm planning to set up a small Raspberry Pi computer +in my car, connected to +<a href="http://www.dx.com/p/400a-4-0-tft-lcd-digital-monitor-for-vehicle-parking-reverse-camera-1440x272-12v-dc-57776">a +small screen</a> next to the rear mirror. I plan to hook it up with a +GPS and a USB wifi card too. The idea is to get my own +"<a href="http://en.wikipedia.org/wiki/Carputer">Carputer</a>". But I +wonder if someone already created a good free software solution for +such car computer.</p> + +<p>This is my current wish list for such system:</p> -</ol></p> - -<p>DNS entries are added in GOsa², and not described here. Follow the -<a href="https://wiki.debian.org/DebianEdu/Documentation/Wheezy/GettingStarted">instructions -in the manual</a> (Machine Management with GOsa² in section Getting -started).</p> - -<p>Ensure that the NFS export points on the server are exported to the -relevant subnets or machines:</p> - -<p><blockquote><pre> -root@tjener:~# showmount -e nas-server -Export list for nas-server: -/storage 10.0.0.0/8 -root@tjener:~# -</pre></blockquote></p> - -<p>Here everything on the backbone network is granted access to the -/storage export. With NFSv3 it is slightly better to limit it to -netgroup membership or single IP addresses to have some limits on the -NFS access.</p> - -<p>The next step is to update LDAP. This can not be done using GOsa², -because it lack a module for automount. Instead, use ldapvi and add -the required LDAP objects using an editor.</p> - -<p><blockquote><pre> -ldapvi --ldap-conf -ZD '(cn=admin)' -b ou=automount,dc=skole,dc=skolelinux,dc=no -</pre></blockquote></p> - -<p>When the editor show up, add the following LDAP objects at the -bottom of the document. The "/&" part in the last LDAP object is a -wild card matching everything the nas-server exports, removing the -need to list individual mount points in LDAP.</p> - -<p><blockquote><pre> -add cn=nas-server,ou=auto.skole,ou=automount,dc=skole,dc=skolelinux,dc=no -objectClass: automount -cn: nas-server -automountInformation: -fstype=autofs --timeout=60 ldap:ou=auto.nas-server,ou=automount,dc=skole,dc=skolelinux,dc=no - -add ou=auto.nas-server,ou=automount,dc=skole,dc=skolelinux,dc=no -objectClass: top -objectClass: automountMap -ou: auto.nas-server - -add cn=/,ou=auto.nas-server,ou=automount,dc=skole,dc=skolelinux,dc=no -objectClass: automount -cn: / -automountInformation: -fstype=nfs,tcp,rsize=32768,wsize=32768,rw,intr,hard,nodev,nosuid,noatime nas-server.intern:/& -</pre></blockquote></p> - -<p>The last step to remember is to mount the relevant mount points in -tjener.intern by adding them to /etc/fstab, creating the mount -directories using mkdir and running "mount -a" to mount them.</p> - -<p>When this is done, your users should be able to access the files on -the storage server directly by just visiting the -/tjener/nas-server/storage/ directory using any application on any -workstation, LTSP client or LTSP server.</p> - - - - - Hvordan bør RFC 822-formattert epost lagres i en NOARK5-database? - http://people.skolelinux.org/pere/blog/Hvordan_b_r_RFC_822_formattert_epost_lagres_i_en_NOARK5_database_.html - http://people.skolelinux.org/pere/blog/Hvordan_b_r_RFC_822_formattert_epost_lagres_i_en_NOARK5_database_.html - Fri, 7 Mar 2014 15:20:00 +0100 - <p>For noen uker siden ble NXCs fri programvarelisenserte -NOARK5-løsning -<a href="http://www.nuug.no/aktiviteter/20140211-noark/">presentert hos -NUUG</a> (video -<a href="https://www.youtube.com/watch?v=JCb_dNS3MHQ">på youtube -foreløbig</a>), og det fikk meg til å titte litt mer på NOARK5, -standarden for arkivhåndtering i det offentlige Norge. Jeg lurer på -om denne kjernen kan være nyttig i et par av mine prosjekter, og for ett -av dem er det mest aktuelt å lagre epost. Jeg klarte ikke finne noen -anbefaling om hvordan RFC 822-formattert epost (aka Internett-epost) -burde lagres i NOARK5, selv om jeg vet at noen arkiver tar -PDF-utskrift av eposten med sitt epostprogram og så arkiverer PDF-en -(eller enda værre, tar papirutskrift og lagrer bildet av eposten som -PDF i arkivet).</p> - -<p>Det er ikke så mange formater som er akseptert av riksarkivet til -langtidsoppbevaring av offentlige arkiver, og PDF og XML er de mest -aktuelle i så måte. Det slo meg at det måtte da finnes en eller annen -egnet XML-representasjon og at det kanskje var enighet om hvilken som -burde brukes, så jeg tok mot til meg og spurte -<a href="http://samdok.com/">SAMDOK</a>, en gruppe tilknyttet -arkivverket som ser ut til å jobbe med NOARK-samhandling, om de hadde -noen anbefalinger: +<ul> -<p><blockquote> -<p>Hei.</p> - -<p>Usikker på om dette er riktig forum å ta opp mitt spørsmål, men jeg -lurer på om det er definert en anbefaling om hvordan RFC -822-formatterte epost (aka vanlig Internet-epost) bør lages håndteres -i NOARK5, slik at en bevarer all informasjon i eposten -(f.eks. Received-linjer). Finnes det en anbefalt XML-mapping ala den -som beskrives på -&lt;URL: <a href="https://www.informit.com/articles/article.aspx?p=32074">https://www.informit.com/articles/article.aspx?p=32074</a> &gt;? Mitt -mål er at det skal være mulig å lagre eposten i en NOARK5-kjerne og -kunne få ut en identisk formattert kopi av opprinnelig epost ved -behov.</p> -</blockquote></p> + <li>Work on Raspberry Pi.</li> -<p>Postmottaker hos SAMDOK mente spørsmålet heller burde stilles -direkte til riksarkivet, og jeg fikk i dag svar derfra formulert av -seniorrådgiver Geir Ivar Tungesvik:</p> + <li>Show current speed limit based on location, and warn if going too + fast (for example using color codes yellow and red on the screen, + or make a sound). This could be done either using either data from + <a href="http://www.openstreetmap.org/">Openstreetmap</a> or OCR + info gathered from a dashboard camera.</li> -<p><blockquote> -<p>Riksarkivet har ingen anbefalinger når det gjelder konvertering fra -e-post til XML. Det står arkivskaper fritt å eventuelt definere/bruke -eget format. Inklusive da - som det spørres om - et format der det er -mulig å re-etablere e-post format ut fra XML-en. XML (e-post) -dokumenter må være referert i arkivstrukturen, og det må vedlegges et -gyldig XML skjema (.xsd) for XML-filene. Arkivskaper står altså fritt -til å gjøre hva de vil, bare det dokumenteres og det kan dannes et -utrekk ved avlevering til depot.</p> - -<p>De obligatoriske kravene i Noark 5 standarden må altså oppfylles - -etter dialog med Riksarkivet i forbindelse med godkjenning. For -offentlige arkiv er det særlig viktig med filene loependeJournal.xml -og offentligJournal.xml. Private arkiv som vil forholde seg til Noark -5 standarden er selvsagt frie til å bruke det som er relevant for dem -av obligatoriske krav.</p> -</blockquote></p> + <li>Track automatic toll road passes and their cost, show total spent + and make it possible to calculate toll costs for planned + route.</li> -<p>Det ser dermed ut for meg som om det er et lite behov for å -standardisere XML-lagring av RFC-822-formatterte meldinger. Noen som -vet om god spesifikasjon i så måte? I tillegg til den omtalt over, -har jeg kommet over flere aktuelle beskrivelser (søk på "rfc 822 -xml", så finner du aktuelle alternativer).</p> + <li>Collect GPX tracks for use with OpenStreetMap.</li> -<ul> + <li>Automatically detect and use any wireless connection to connect + to home server. Try IP over DNS + (<a href="http://dev.kryo.se/iodine/">iodine</a>) or ICMP + (<a href="http://code.gerade.org/hans/">Hans</a>) if direct + connection do not work.</li> -<li><a href="http://www.openhealth.org/xmtp/">XML MIME Transformation -protocol (XMTP)</a> fra OpenHealth, sist oppdatert 2001.</li> + <li>Set up mesh network to talk to other cars with the same system, + or some standard car mesh protocol.</li> -<li><a href="https://tools.ietf.org/html/draft-klyne-message-rfc822-xml-03">An -XML format for mail and other messages</a> utkast fra IETF datert -2001.</li> + <li>Warn when approaching speed cameras and speed camera ranges + (speed calculated between two cameras).</li> -<li><a href="http://www.informit.com/articles/article.aspx?p=32074">xMail: -E-mail as XML</a> en artikkel fra 2003 som beskriver python-modulen -rfc822 som gir ut XML-representasjon av en RFC 822-formattert epost.</li> + <li>Suport dashboard/front facing camera to discover speed limits and + run OCR to track registration number of passing cars.</li> </ul> -<p>Finnes det andre og bedre spesifikasjoner for slik lagring? Send -meg en epost hvis du har innspill.</p> +<p>If you know of any free software car computer system supporting +some or all of these features, please let me know.</p>