<link>http://people.skolelinux.org/pere/blog/</link>
<atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
+ <item>
+ <title>Freedombox on Dreamplug, Raspberry Pi and virtual x86 machine</title>
+ <link>http://people.skolelinux.org/pere/blog/Freedombox_on_Dreamplug__Raspberry_Pi_and_virtual_x86_machine.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Freedombox_on_Dreamplug__Raspberry_Pi_and_virtual_x86_machine.html</guid>
+ <pubDate>Fri, 14 Mar 2014 11:00:00 +0100</pubDate>
+ <description><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>
+
+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>
+</description>
+ </item>
+
+ <item>
+ <title>How to add extra storage servers in Debian Edu / Skolelinux</title>
+ <link>http://people.skolelinux.org/pere/blog/How_to_add_extra_storage_servers_in_Debian_Edu___Skolelinux.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/How_to_add_extra_storage_servers_in_Debian_Edu___Skolelinux.html</guid>
+ <pubDate>Wed, 12 Mar 2014 12:50:00 +0100</pubDate>
+ <description><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>
+
+</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>
+</description>
+ </item>
+
+ <item>
+ <title>Hvordan bør RFC 822-formattert epost lagres i en NOARK5-database?</title>
+ <link>http://people.skolelinux.org/pere/blog/Hvordan_b_r_RFC_822_formattert_epost_lagres_i_en_NOARK5_database_.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Hvordan_b_r_RFC_822_formattert_epost_lagres_i_en_NOARK5_database_.html</guid>
+ <pubDate>Fri, 7 Mar 2014 15:20:00 +0100</pubDate>
+ <description><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:
+
+<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>
+
+<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>
+
+<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>
+
+<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>
+
+<ul>
+
+<li><a href="http://www.openhealth.org/xmtp/">XML MIME Transformation
+protocol (XMTP)</a> fra OpenHealth, sist oppdatert 2001.</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><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>
+
+</ul>
+
+<p>Finnes det andre og bedre spesifikasjoner for slik lagring? Send
+meg en epost hvis du har innspill.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Lenker for 2014-02-28</title>
+ <link>http://people.skolelinux.org/pere/blog/Lenker_for_2014_02_28.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Lenker_for_2014_02_28.html</guid>
+ <pubDate>Fri, 28 Feb 2014 13:30:00 +0100</pubDate>
+ <description><p>Her er noen lenker til tekster jeg har satt pris på å lese de siste
+månedene. Det er mye om varsleren Edward Snowden, som burde få all
+hjelp, støtte og beskyttelse Norge kan stille opp med for å ha satt
+totalitær overvåkning på sakskartet, men også endel annet
+tankevekkende og interessant.</p>
+
+<ul>
+
+<li>2013-12-21
+<a href="http://www.dagbladet.no/2013/12/21/nyheter/thomas_drake/nsa/overvakning/snowden/30925886/">-
+NSA tenker som Stasi</a> - Dagbladet.no</li>
+
+<li>2013-12-19 <a href="http://www.dagensit.no/article2732734.ece">-
+Staten har ikke rett til å vite alt om deg</a> - DN.no</li>
+
+<li>2013-12-21
+<a href="http://www.dagbladet.no/2013/12/21/nyheter/krig_og_konflikter/politikk/utenriks/30961126/">Nye
+mål for NSAs spionasje avslørt</a> - Dagbladet.no</li>
+
+<li>2013-12-19
+<a href="http://www.dagbladet.no/2013/12/19/nyheter/nsa/usa/politikk/barack_obama/30918684/">«NSA
+bør fjernes fra sin makt til å samle inn metadata fra amerikanske
+telefonsamtaler»</a> - Dagbladet.no</li>
+
+<li>2013-12-18
+<a href="http://www.dagbladet.no/2013/12/18/kultur/meninger/hovedkronikk/debatt/snowden/30901089/">Etterretning,
+overvåking, frihet og sikkerhet</a> - Dagbladet.no</li>
+
+<li>2013-12-17
+<a href="http://www.nrk.no/verden/snowden-vil-ha-asyl-i-brasil-1.11423444">Snowden
+angriper USA i åpent brev</a> - nrk.no</li>
+
+<li>2013-12-17
+<a href="http://www.digi.no/925820/rettslig-nederlag-for-etterretning">Rettslig
+nederlag for etterretning</a> - digi.no</li>
+
+<li>2013-12-21
+<a href="http://www.dagbladet.no/2013/12/21/kultur/meninger/hovedkommentar/kommentar/etterretning/30963284/">Truende
+nedkjøling</a> - dagbladet.no</li>
+
+<li>2013-12-20
+<a href="http://www.aftenposten.no/viten/Matematikk-og-forstaelse-7411849.html">Matematikk
+og forståelse</a> - aftenposten.no</li>
+
+<li>2013-10-20
+<a href="http://www.nrk.no/viten/ny-studie_sovn-reinser-hjernen-var-1.11306106">Vi
+søv for å reinse hjernen vår, ifølgje ny studie</a> - nrk.no</li>
+
+<li>2013-12-11
+<a href="http://www.nrk.no/buskerud/julebaksten-i-vasken-1.11410033">Rotterace
+i kloakken</a> - nrk.no</li>
+
+<li>2013-12-30
+<a href="http://www.aftenposten.no/viten/Apne-brev-og-frie-tanker-7413734.html">Åpne
+brev og frie tanker</a> - aftenposten.no</li>
+
+<li>2014-01-12
+<a href="http://www.aftenposten.no/viten/Stopp-kunnskapsapartheidet-7428229.html">Stopp dagens kunnskapsapartheid!</a> - aftenposten.no</li>
+
+<li>2014-01-09
+<a href="http://www.aftenposten.no/nyheter/uriks/EU-rapport-Britisk-og-amerikansk-overvaking-ser-ut-til-a-vare-ulovlig-7428933.html">EU-rapport:
+Britisk og amerikansk overvåking ser ut til å være ulovlig</a> -
+aftenposten.no</li>
+
+<li>2013-10-23 Professor Jan Arild Audestad
+<a href="http://www.digi.no/924008/advarer-mot-konspirasjonsteori">Advarer
+mot konspirasjonsteori</a> i digi.no og sier han ikke tror NSA kan
+avlytte mobiltelefoner, mens han noen måneder senere forteller:</li>
+
+<li>2014-01-09
+<a href="http://www.aftenposten.no/nyheter/iriks/--Vi-ble-presset-til-a-svekke-mobilsikkerheten-pa-80-tallet-7410467.html">-
+Vi ble presset til å svekke mobilsikkerheten på 80-tallet</a> -
+aftenposten.no</li>
+
+<li>2014-02-12
+<a href="http://tv.nrk.no/program/koid20005814/et-moete-med-edward-snowden">Et
+møte med Edward Snowden</a> - intervju sendt av nrk, tilgjengelig til
+2015-01-31</li>
+
+<li>2014-02-17
+<a href="http://politiken.dk/debat/profiler/jessteinpedersen/ECE2210356/litteraturredaktoeren-helle-thornings-tavshed-om-snowden-er-en-skandale/">Litteraturredaktøren:
+Helle Thornings tavshed om Snowden er en skandale</a> -
+politiken.dk</li>
+
+<li>2014-02-21
+<a href="http://www.aftenposten.no/meninger/kronikker/Bra-a-ha-en-Storebror-7476734.html">Bra å ha en «Storebror»</a> - aftenposten.no</li>
+
+<li>2014-02-28
+<a href="http://johnchristianelden.blogg.no/1393536806_narkotikasiktet_stort.html">"Narkotikasiktet
+Stortingsmann" - Spillet bak kulissene</a> - John Christian Eldens
+blogg</li>
+
+<li>2014-02-28
+<a href="http://www.aftenposten.no/meninger/Heksejakt-pa-hasjbrukere-7486283.html">Heksejakt
+på hasjbrukere</a> - aftenposten.no</li>
+
+</ul>
+</description>
+ </item>
+
+ <item>
+ <title>New home and release 1.0 for netgroup and innetgr (aka ng-utils)</title>
+ <link>http://people.skolelinux.org/pere/blog/New_home_and_release_1_0_for_netgroup_and_innetgr__aka_ng_utils_.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/New_home_and_release_1_0_for_netgroup_and_innetgr__aka_ng_utils_.html</guid>
+ <pubDate>Sat, 22 Feb 2014 21:45:00 +0100</pubDate>
+ <description><p>Many years ago, I wrote a GPL licensed version of the netgroup and
+innetgr tools, because I needed them in
+<a href="http://www.skolelinux.org/">Skolelinux</a>. I called the project
+ng-utils, and it has served me well. I placed the project under the
+<a href="http://www.hungry.com/">Hungry Programmer</a> umbrella, and it was maintained in our CVS
+repository. But many years ago, the CVS repository was dropped (lost,
+not migrated to new hardware, not sure), and the project have lacked a
+proper home since then.</p>
+
+<p>Last summer, I had a look at the package and made a new release
+fixing a irritating crash bug, but was unable to store the changes in
+a proper source control system. I applied for a project on
+<a href="https://alioth.debian.org/">Alioth</a>, but did not have time
+to follow up on it. Until today. :)</p>
+
+<p>After many hours of cleaning and migration, the ng-utils project
+now have a new home, and a git repository with the highlight of the
+history of the project. I published all release tarballs and imported
+them into the git repository. As the project is really stable and not
+expected to gain new features any time soon, I decided to make a new
+release and call it 1.0. Visit the new project home on
+<a href="https://alioth.debian.org/projects/ng-utils/">https://alioth.debian.org/projects/ng-utils/</a>
+if you want to check it out. The new version is also uploaded into
+<a href="http://packages.qa.debian.org/n/ng-utils.html">Debian Unstable</a>.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Testing sysvinit from experimental in Debian Hurd</title>
+ <link>http://people.skolelinux.org/pere/blog/Testing_sysvinit_from_experimental_in_Debian_Hurd.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Testing_sysvinit_from_experimental_in_Debian_Hurd.html</guid>
+ <pubDate>Mon, 3 Feb 2014 13:40:00 +0100</pubDate>
+ <description><p>A few days ago I decided to try to help the Hurd people to get
+their changes into sysvinit, to allow them to use the normal sysvinit
+boot system instead of their old one. This follow up on the
+<a href="https://teythoon.cryptobitch.de//categories/gsoc.html">great
+Google Summer of Code work</a> done last summer by Justus Winter to
+get Debian on Hurd working more like Debian on Linux. To get started,
+I downloaded a prebuilt hard disk image from
+<a href="http://ftp.debian-ports.org/debian-cd/hurd-i386/current/debian-hurd.img.tar.gz">http://ftp.debian-ports.org/debian-cd/hurd-i386/current/debian-hurd.img.tar.gz</a>,
+and started it using virt-manager.</p>
+
+<p>The first think I had to do after logging in (root without any
+password) was to get the network operational. I followed
+<a href="https://www.debian.org/ports/hurd/hurd-install">the
+instructions on the Debian GNU/Hurd ports page</a> and ran these
+commands as root to get the machine to accept a IP address from the
+kvm internal DHCP server:</p>
+
+<p><blockquote><pre>
+settrans -fgap /dev/netdde /hurd/netdde
+kill $(ps -ef|awk '/[p]finet/ { print $2}')
+kill $(ps -ef|awk '/[d]evnode/ { print $2}')
+dhclient /dev/eth0
+</pre></blockquote></p>
+
+<p>After this, the machine had internet connectivity, and I could
+upgrade it and install the sysvinit packages from experimental and
+enable it as the default boot system in Hurd.</p>
+
+<p>But before I did that, I set a password on the root user, as ssh is
+running on the machine it for ssh login to work a password need to be
+set. Also, note that a bug somewhere in openssh on Hurd block
+compression from working. Remember to turn that off on the client
+side.</p>
+
+<p>Run these commands as root to upgrade and test the new sysvinit
+stuff:</p>
+
+<p><blockquote><pre>
+cat > /etc/apt/sources.list.d/experimental.list &lt;&lt;EOF
+deb http://http.debian.net/debian/ experimental main
+EOF
+apt-get update
+apt-get dist-upgrade
+apt-get install -t experimental initscripts sysv-rc sysvinit \
+ sysvinit-core sysvinit-utils
+update-alternatives --config runsystem
+</pre></blockquote></p>
+
+<p>To reboot after switching boot system, you have to use
+<tt>reboot-hurd</tt> instead of just <tt>reboot</tt>, as there is not
+yet a sysvinit process able to receive the signals from the normal
+'reboot' command. After switching to sysvinit as the boot system,
+upgrading every package and rebooting, the network come up with DHCP
+after boot as it should, and the settrans/pkill hack mentioned at the
+start is no longer needed. But for some strange reason, there are no
+longer any login prompt in the virtual console, so I logged in using
+ssh instead.
+
+<p>Note that there are some race conditions in Hurd making the boot
+fail some times. No idea what the cause is, but hope the Hurd porters
+figure it out. At least Justus said on IRC (#debian-hurd on
+irc.debian.org) that they are aware of the problem. A way to reduce
+the impact is to upgrade to the Hurd packages built by Justus by
+adding this repository to the machine:</p>
+
+<p><blockquote><pre>
+cat > /etc/apt/sources.list.d/hurd-ci.list &lt;&lt;EOF
+deb http://darnassus.sceen.net/~teythoon/hurd-ci/ sid main
+EOF
+</pre></blockquote></p>
+
+<p>At the moment the prebuilt virtual machine get some packages from
+http://ftp.debian-ports.org/debian, because some of the packages in
+unstable do not yet include the required patches that are lingering in
+BTS. This is the completely list of "unofficial" packages installed:</p>
+
+<p><blockquote><pre>
+# aptitude search '?narrow(?version(CURRENT),?origin(Debian Ports))'
+i emacs - GNU Emacs editor (metapackage)
+i gdb - GNU Debugger
+i hurd-recommended - Miscellaneous translators
+i isc-dhcp-client - ISC DHCP client
+i isc-dhcp-common - common files used by all the isc-dhcp* packages
+i libc-bin - Embedded GNU C Library: Binaries
+i libc-dev-bin - Embedded GNU C Library: Development binaries
+i libc0.3 - Embedded GNU C Library: Shared libraries
+i A libc0.3-dbg - Embedded GNU C Library: detached debugging symbols
+i libc0.3-dev - Embedded GNU C Library: Development Libraries and Hea
+i multiarch-support - Transitional package to ensure multiarch compatibilit
+i A x11-common - X Window System (X.Org) infrastructure
+i xorg - X.Org X Window System
+i A xserver-xorg - X.Org X server
+i A xserver-xorg-input-all - X.Org X server -- input driver metapackage
+#
+</pre></blockquote></p>
+
+<p>All in all, testing hurd has been an interesting experience. :)
+X.org did not work out of the box and I never took the time to follow
+the porters instructions to fix it. This time I was interested in the
+command line stuff.<p>
+</description>
+ </item>
+
+ <item>
+ <title>A fist full of non-anonymous Bitcoins</title>
+ <link>http://people.skolelinux.org/pere/blog/A_fist_full_of_non_anonymous_Bitcoins.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/A_fist_full_of_non_anonymous_Bitcoins.html</guid>
+ <pubDate>Wed, 29 Jan 2014 14:10:00 +0100</pubDate>
+ <description><p>Bitcoin is a incredible use of peer to peer communication and
+encryption, allowing direct and immediate money transfer without any
+central control. It is sometimes claimed to be ideal for illegal
+activity, which I believe is quite a long way from the truth. At least
+I would not conduct illegal money transfers using a system where the
+details of every transaction are kept forever. This point is
+investigated in
+<a href="https://www.usenix.org/publications/login">USENIX ;login:</a>
+from December 2013, in the article
+"<a href="https://www.usenix.org/system/files/login/articles/03_meiklejohn-online.pdf">A
+Fistful of Bitcoins - Characterizing Payments Among Men with No
+Names</a>" by Sarah Meiklejohn, Marjori Pomarole,Grant Jordan, Kirill
+Levchenko, Damon McCoy, Geoffrey M. Voelker, and Stefan Savage. They
+analyse the transaction log in the Bitcoin system, using it to find
+addresses belong to individuals and organisations and follow the flow
+of money from both Bitcoin theft and trades on Silk Road to where the
+money end up. This is how they wrap up their article:</p>
+
+<p><blockquote>
+<p>"To demonstrate the usefulness of this type of analysis, we turned
+our attention to criminal activity. In the Bitcoin economy, criminal
+activity can appear in a number of forms, such as dealing drugs on
+Silk Road or simply stealing someone else’s bitcoins. We followed the
+flow of bitcoins out of Silk Road (in particular, from one notorious
+address) and from a number of highly publicized thefts to see whether
+we could track the bitcoins to known services. Although some of the
+thieves attempted to use sophisticated mixing techniques (or possibly
+mix services) to obscure the flow of bitcoins, for the most part
+tracking the bitcoins was quite straightforward, and we ultimately saw
+large quantities of bitcoins flow to a variety of exchanges directly
+from the point of theft (or the withdrawal from Silk Road).</p>
+
+<p>As acknowledged above, following stolen bitcoins to the point at
+which they are deposited into an exchange does not in itself identify
+the thief; however, it does enable further de-anonymization in the
+case in which certain agencies can determine (through, for example,
+subpoena power) the real-world owner of the account into which the
+stolen bitcoins were deposited. Because such exchanges seem to serve
+as chokepoints into and out of the Bitcoin economy (i.e., there are
+few alternative ways to cash out), we conclude that using Bitcoin for
+money laundering or other illicit purposes does not (at least at
+present) seem to be particularly attractive."</p>
+</blockquote><p>
+
+<p>These researches are not the first to analyse the Bitcoin
+transaction log. The 2011 paper
+"<a href="http://arxiv.org/abs/1107.4524">An Analysis of Anonymity in
+the Bitcoin System</A>" by Fergal Reid and Martin Harrigan is
+summarized like this:</p>
+
+<p><blockquote>
+"Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a
+complicated issue. Within the system, users are identified by
+public-keys only. An attacker wishing to de-anonymize its users will
+attempt to construct the one-to-many mapping between users and
+public-keys and associate information external to the system with the
+users. Bitcoin tries to prevent this attack by storing the mapping of
+a user to his or her public-keys on that user's node only and by
+allowing each user to generate as many public-keys as required. In
+this chapter we consider the topological structure of two networks
+derived from Bitcoin's public transaction history. We show that the
+two networks have a non-trivial topological structure, provide
+complementary views of the Bitcoin system and have implications for
+anonymity. We combine these structures with external information and
+techniques such as context discovery and flow analysis to investigate
+an alleged theft of Bitcoins, which, at the time of the theft, had a
+market value of approximately half a million U.S. dollars."
+</blockquote></p>
+
+<p>I hope these references can help kill the urban myth that Bitcoin
+is anonymous. It isn't really a good fit for illegal activites. Use
+cash if you need to stay anonymous, at least until regular DNA
+sampling of notes and coins become the norm. :)</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&label=PetterReinholdtsenBlog">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
+ <item>
+ <title>New chrpath release 0.16</title>
+ <link>http://people.skolelinux.org/pere/blog/New_chrpath_release_0_16.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/New_chrpath_release_0_16.html</guid>
+ <pubDate>Tue, 14 Jan 2014 11:00:00 +0100</pubDate>
+ <description><p><a href="http://www.coverity.com/">Coverity</a> is a nice tool to
+find problems in C, C++ and Java code using static source code
+analysis. It can detect a lot of different problems, and is very
+useful to find memory and locking bugs in the error handling part of
+the source. The company behind it provide
+<a href="https://scan.coverity.com/">check of free software projects as
+a community service</a>, and many hundred free software projects are
+already checked. A few days ago I decided to have a closer look at
+the Coverity system, and discovered that the
+<a href="http://www.gnu.org/software/gnash/">gnash</a> and
+<a href="http://sourceforge.net/projects/ipmitool/">ipmitool</a>
+projects I am involved with was already registered. But these are
+fairly big, and I would also like to have a small and easy project to
+check, and decided to <a href="http://scan.coverity.com/projects/1179">request
+checking of the chrpath project</a>. It was
+added to the checker and discovered seven potential defects. Six of
+these were real, mostly resource "leak" when the program detected an
+error. Nothing serious, as the resources would be released a fraction
+of a second later when the program exited because of the error, but it
+is nice to do it right in case the source of the program some time in
+the future end up in a library. Having fixed all defects and added
+<a href="https://lists.alioth.debian.org/mailman/listinfo/chrpath-devel">a
+mailing list for the chrpath developers</a>, I decided it was time to
+publish a new release. These are the release notes:</p>
+
+<p>New in 0.16 released 2014-01-14:</p>
+
+<ul>
+
+ <li>Fixed all minor bugs discovered by Coverity.</li>
+ <li>Updated config.sub and config.guess from the GNU project.</li>
+ <li>Mention new project mailing list in the documentation.</li>
+
+</ul>
+
+<p>You can
+<a href="https://alioth.debian.org/frs/?group_id=31052">download the
+new version 0.16 from alioth</a>. Please let us know via the Alioth
+project if something is wrong with the new release. The test suite
+did not discover any old errors, so if you find a new one, please also
+include a test suite check.</p>
+</description>
+ </item>
+
<item>
<title>Debian Edu interview: Dominik George</title>
<link>http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Dominik_George.html</link>
</description>
</item>
- <item>
- <title>Debian Edu interview: Klaus Knopper</title>
- <link>http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Klaus_Knopper.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Klaus_Knopper.html</guid>
- <pubDate>Fri, 6 Dec 2013 09:50:00 +0100</pubDate>
- <description><p>It has been a while since I managed to publish the last interview,
-but the <a href="http://www.skolelinux.org/">Debian Edu /
-Skolelinux</a> community is still going strong, and yesterday we even
-had a new school administrator show up on
-<a href="irc://irc.debian.org/#debian-edu">#debian-edu</a> to share
-his success story with installing Debian Edu at their school. This
-time I have been able to get some helpful comments from the creator of
-Knoppix, Klaus Knopper, who was involved in a Skolelinux project in
-Germany a few years ago.</p>
-
-<p><strong>Who are you, and how do you spend your days?</strong></p>
-
-<p>I am Klaus Knopper. I have a master degree in electrical
-engineering, and is currently professor in information management at
-the university of applied sciences Kaiserslautern / Germany and
-freelance Open Source software developer and consultant.</p>
-
-<p>All of this is pretty much of the work I spend my days with. Apart
-from teaching, I'm also conducting some more or less experimental
-projects like the <a href="http://www.knoppix.org">Knoppix GNU/Linux live
-system</a> (Debian-based like Skolelinux),
-<a href="http://www.knopper.net/knoppix-adriane/index-en.html">ADRIANE</a>
-(a blind-friendly talking desktop system) and
-<a href="http://www.knopper.net/linbo/index-en.html">LINBO</a>
-(Linux-based network boot console, a fast remote install and repair
-system supporting various operating systems).</p>
-
-<p><strong>How did you get in contact with the Skolelinux / Debian Edu
-project?</strong></p>
-
-<p>The credit for this have to go to Kurt Gramlich, who is the German
-coordinator for Skolelinux. We were looking for an all-in-one open
-source community-supported distribution for schools, and Kurt
-introduced us to Skolelinux for this purpose.</p>
-
-<p><strong>What do you see as the advantages of Skolelinux / Debian
-Edu?</strong></p>
-
-<ul>
- <li>Quick installation,</li>
- <li>works (almost) out of the box,</li>
- <li>contains many useful software packages for teaching and learning,</li>
- <li>is a purely community-based distro and not controlled by a
- single company,</li>
- <li>has a large number of supporters and teachers who share their
- experience and problem solutions.</li>
-</ul>
-
-<p><strong>What do you see as the disadvantages of Skolelinux / Debian
-Edu?</strong></p>
-
-<ul>
- <li>Skolelinux is - as we had to learn - not easily upgradable to
- the next version. Opposed to its genuine Debian base, upgrading to
- a new version means a full new installation from scratch to get it
- working again reliably.
-
- <li>Skolelinux is based on Debian/stable, and therefore always a
- little outdated in terms of program versions compared to Edubuntu or
- similar educational Linux distros, which rather use Debian/testing
- as their base.
-
- <li>Skolelinux has some very self-opinionated and stubborn default
- configuration which in my opinion adds unnecessary complexity and is
- not always suitable for a schools needs, the preset network
- configuration is actually a core definition feature of Skolelinux
- and not easy to change, so schools sometimes have to change their
- network configuration to make it "Skolelinux-compatible".
-
- <li>Some proposed extensions, which were made available as
- contribution, like secure examination mode and lecture material
- distribution and collection, were not accepted into the mainline
- Skolelinux development and are now not easy to maintain in the
- future because of Skolelinux somewhat undeterministic update
- schemes.</li>
-
- <li>Skolelinux has only a very tiny number of base developers
- compared to Debian.</li>
-
-</ul>
-
-<p>For these reasons and experience from our project, I would now
-rather consider using plain Debian for schools next time, until
-Skolelinux is more closely integrated into Debian and becomes
-upgradeable without reinstallation.</p>
-
-<p><strong>Which free software do you use daily?</strong></p>
-
-<p>GNU/Linux with LXDE desktop, bash for interactive dialog and
-programming, texlive for documentation and correspondence,
-occasionally LibreOffice for document format conversion. Various
-programming languages for teaching.</p>
-
-<p><strong>Which strategy do you believe is the right one to use to
-get schools to use free software?</strong></p>
-
-<p>Strong arguments are</p>
-
-<ul>
-
- <li>Knowledge is free, and so should be methods and tools for
- teaching and learning.</li>
-
- <li>Students can learn with and use the same software at school, at
- home, and at their working place without running into license or
- conversion problems.</li>
-
- <li>Closed source or proprietary software hides knowledge rather
- than exposing it, and proprietary software vendors try to bind
- customers to certain products. But teachers need to teach
- science, not products.</li>
-
- <li>If you have everything you for daily work as open source, what
- would you need proprietary software for?</li>
-
-</ul>
-</description>
- </item>
-
- <item>
- <title>Dugnadsnett for alle, a wireless community network in Oslo, take shape</title>
- <link>http://people.skolelinux.org/pere/blog/Dugnadsnett_for_alle__a_wireless_community_network_in_Oslo__take_shape.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Dugnadsnett_for_alle__a_wireless_community_network_in_Oslo__take_shape.html</guid>
- <pubDate>Sat, 30 Nov 2013 10:10:00 +0100</pubDate>
- <description><p>If you want the ability to electronically communicate directly with
-your neighbors and friends using a network controlled by your peers in
-stead of centrally controlled by a few corporations, or would like to
-experiment with interesting network technology, the
-<a href="http://www.dugnadsnett.no/">Dugnasnett for alle i Oslo</a>
-might be project for you. 39 mesh nodes are currently being planned,
-in the freshly started initiative from NUUG and Hackeriet to create a
-wireless community network. The work is inspired by
-<a href="http://freifunk.net/">Freifunk</a>,
-<a href="http://www.awmn.net/">Athens Wireless Metropolitan
-Network</a>, <a href="http://en.wikipedia.org/wiki/Roofnet">Roofnet</a>
-and other successful mesh networks around the globe. Two days ago we
-held a workshop to try to get people started on setting up their own
-mesh node, and there we decided to create a new mailing list
-<a href="http://lists.nuug.no/mailman/listinfo/dugnadsnett">dugnadsnett
-(at) nuug.no</a> and IRC channel
-<a href="irc://irc.freenode.net/#dugnadsnett.no">#dugnadsnett.no</a> to
-coordinate the work. See also the NUUG blog post
-<a href="http://www.nuug.no/news/E_postliste_og_IRC_kanal_for_Dugnadsnett_for_alle_i_Oslo.shtml">announcing
-the mailing list and IRC channel</a>.</p>
-</description>
- </item>
-
- <item>
- <title>Hvor godt fungerer Linux-klienter mot MS Exchange?</title>
- <link>http://people.skolelinux.org/pere/blog/Hvor_godt_fungerer_Linux_klienter_mot_MS_Exchange_.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Hvor_godt_fungerer_Linux_klienter_mot_MS_Exchange_.html</guid>
- <pubDate>Tue, 26 Nov 2013 18:50:00 +0100</pubDate>
- <description><p>Jeg
-<a href="http://people.skolelinux.org/pere/blog/_pent_m_te_p__onsdag_om_bruken_av_Microsoft_Exchange_ved_Universitetet_i_Oslo.html">skrev
-i juni om protestene</a> på planene til min arbeidsplass,
-<a href="http://www.uio.no/">Universitetet i Oslo</a>, om å gå bort fra
-fri programvare- og åpne standardløsninger for å håndtere epost,
-vekk fra IETF-standarden SIEVE for filtrering av epost og over til
-godseide spesifikasjoner og epostsystemet Microsoft Exchange.
-Protestene har fått litt ny omtale i media de siste dagene, i tillegg
-til de oppslagene som kom i mai.</p>
-
-<ul>
-
-<li>2013-11-26 <a href="http://www.version2.dk/artikel/gigantisk-outlook-konvertering-moeder-protester-paa-universitet-55147">Gigantisk Outlook-konvertering møder protester på universitet</a> - versjon2.dk</li>
-
-<li>2013-11-25
- <a href="http://www.idg.no/computerworld/article279407.ece">Microsoft-protest
- på Universitetet</a> - Computerworld</li>
-
-<li>2013-11-25
- <a href="http://www.uniforum.uio.no/nyheter/2013/11/uio-bor-bruke-apen-programvare.html">Kjemper
- mot innføring av Microsoft Exchange på UiO</a> - Uniforum</li>
-
-<li>2013-11-25
- <a href="http://www.uniforum.uio.no/nyheter/2013/11/uio-utsetter-innforing-av-nytt-e-postsystem.html">Utsetter
- innføring av nytt e-postsystem</a> - Uniforum</li>
-
-<li>2013-05-29
- <a href="http://universitas.no/nyhet/58462/forsvarer-nytt-it-system">Forsvarer
- nytt IT-system</a> - Universitas</li>
-
-<li>2013-05-23
- <a href="http://www.uniforum.uio.no/nyheter/2013/05/uio-innforer-nytt-epost-og-kalendersystem.html">UiO
- innfører nytt epost- og kalenderverktøy</a> - Uniforum</li>
-
-<li>2013-05-22
- <a href="http://universitas.no/nyhet/58424/protestgruppe-vil-stanse-it-system">Protestgruppe
- vil stanse IT-system</a> - Universitas</li>
-
-<li>2013-05-15
- <a href="http://www.uniforum.uio.no/leserbrev/2013/uio-ma-ha-kontroll-over-sitt-eget-epostsystem.html">UiO
- må ha kontroll over sitt eget epostsystem</a> - Uniforum</li>
-
-</ul>
-
-<p>Prosjektledelsen har fortalt at dette skal fungere like godt for
-Linux-brukere som for brukere av Microsoft Windows og Apple MacOSX,
-men jeg lurer på hva slags erfaringer Linux-brukere i eksisterende
-miljøer som bruker MS Exchange har gjort. Hvis du har slik erfaring
-hadet det vært veldig fint om du kan send et leserbrev til
-<a href="http://www.uniforum.uio.no/">Uniforum</a> og fortelle om hvor
-greit det er å bruke Exchange i kryss-platform-miljøer? De jeg har
-snakket med sier en greit får lest e-posten sin hvis Exchange har
-slått på IMAP-funksjonalitet, men at kalender og møtebooking ikke
-fungerer godt for Linux-klienter. Jeg har ingen personlig erfaring å
-komme med, så jeg er nysgjerrig på hva andre kan dele av erfaringer
-med universitetet.</p>
-
-<p>Mitt ankerpunkt mot å bytte ut fri programvare som fungerer godt
-med godseid programvare er at en mister kontroll over egen
-infrastruktur, låser seg inn i en løsning det vil bli dyrt å komme ut
-av, uten at en får funksjonalitet en ikke kunne skaffet seg med fri
-programvare, eventuelt videreutviklet med de pengene som brukes på
-overgangen til MS Exchange. Personlig planlegger jeg å fortsette å
-laste ned all eposten min til lokal maskin for indeksering og lesing
-med <a href=="http://notmuchmail.org">notmuch</a>, så jeg håper jeg
-ikke blir veldig skadelidende av overgangen.</p>
-
-<p><a href="http://dinis.linguateca.pt/Diana/ImotMSUiO.html">Underskriftslista
-for oss som er mot endringen</a>, som omtales i artiklene, er fortsatt
-åpen for de som vil signere på oppropet. Akkurat nå er det 298
-personer som har signert.</p>
-</description>
- </item>
-
- <item>
- <title>New chrpath release 0.15</title>
- <link>http://people.skolelinux.org/pere/blog/New_chrpath_release_0_15.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/New_chrpath_release_0_15.html</guid>
- <pubDate>Sun, 24 Nov 2013 09:30:00 +0100</pubDate>
- <description><p>After many years break from the package and a vain hope that
-development would be continued by someone else, I finally pulled my
-acts together this morning and wrapped up a new release of chrpath,
-the command line tool to modify the rpath and runpath of already
-compiled ELF programs. The update was triggered by the persistence of
-Isha Vishnoi at IBM, which needed a new config.guess file to get
-support for the ppc64le architecture (powerpc 64-bit Little Endian) he
-is working on. I checked the
-<a href="http://packages.qa.debian.org/chrpath">Debian</a>,
-<a href="https://launchpad.net/ubuntu/+source/chrpath">Ubuntu</a> and
-<a href="https://admin.fedoraproject.org/pkgdb/acls/name/chrpath">Fedora</a>
-packages for interesting patches (failed to find the source from
-OpenSUSE and Mandriva packages), and found quite a few nice fixes.
-These are the release notes:</p>
-
-<p>New in 0.15 released 2013-11-24:</p>
-
-<ul>
-
- <li>Updated config.sub and config.guess from the GNU project to work
- with newer architectures. Thanks to isha vishnoi for the heads
- up.</li>
-
- <li>Updated README with current URLs.</li>
-
- <li>Added byteswap fix found in Ubuntu, credited Jeremy Kerr and
- Matthias Klose.</li>
-
- <li>Added missing help for -k|--keepgoing option, using patch by
- Petr Machata found in Fedora.</li>
-
- <li>Rewrite removal of RPATH/RUNPATH to make sure the entry in
- .dynamic is a NULL terminated string. Based on patch found in
- Fedora credited Axel Thimm and Christian Krause.</li>
-
-</ul>
-
-<p>You can
-<a href="https://alioth.debian.org/frs/?group_id=31052">download the
-new version 0.15 from alioth</a>. Please let us know via the Alioth
-project if something is wrong with the new release. The test suite
-did not discover any old errors, so if you find a new one, please also
-include a testsuite check.</p>
-</description>
- </item>
-
- <item>
- <title>RSS-kilde for fritekstsøk i offentlige anbud hos Doffin</title>
- <link>http://people.skolelinux.org/pere/blog/RSS_kilde_for_friteksts_k_i_offentlige_anbud_hos_Doffin.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/RSS_kilde_for_friteksts_k_i_offentlige_anbud_hos_Doffin.html</guid>
- <pubDate>Fri, 22 Nov 2013 13:40:00 +0100</pubDate>
- <description><p>I fjor sommer lagde jeg en
-<a href="http://people.skolelinux.org/pere/blog/SQL_database_med_anbud_publisert_p__Doffin.html">offentlig
-tilgjengelig SQL-database over offentlig anbud</a> basert på skraping
-av HTML-data fra Doffin. Den har stått og gått siden da, og har nå
-ca. 28000 oppføringer. Jeg oppdaget da jeg tittet innom at noen
-oppføringer var ikke blitt med, antagelig på grunn av at de fikk
-tildelt sekvensnummer i Doffin en godt stund før de ble publisert,
-slik at min nettsideskraper som fortsatte skrapingen der den slapp
-sist ikke fikk dem med seg. Jeg har fikset litt slik at skraperen nå
-ser litt tilbake i tid for å se om den har gått glipp av noen
-oppføringer, og har skrapet på nytt fra midten av september 2013 og
-fremover. Det bør dermed bli en mer komplett database for kommende
-måneder. Hvis jeg får tid skal jeg forsøke å skrape "glemte" data fra
-før midten av september 2013, men tør ikke garantere at det blir
-prioritert med det første. </p>
-
-<p>Men målet med denne bloggposten er å vise hvordan denne
-Doffin-databasen kan brukes og integreres med en RSS-leser, slik at en
-kan la datamaskinen holde et øye med Doffin-annonseringer etter
-nøkkelord. En kan lage sitt eget søk ved å besøke
-<ahref="https://classic.scraperwiki.com/docs/api?name=norwegian-doffin#sqlite">API-et
-hos Scraperwiki</a>, velge format rss2 og så legge inn noe ala dette i
-"query in SQL":</p>
-
-<p><pre>
-select title, scrapedurl as link, abstract as description,
- publishdate as pubDate from 'swdata'
- where abstract like '%linux%' or title like '%linux%'
- order by seq desc limit 20
-</pre></p>
-
-<p>Dette vil søke opp alle anbud med ordet linux i oppsummering eller
-tittel. En kan lage mer avanserte søk hvis en ønsker det. URL-en som
-dukker opp nederst på siden kan en så gi til sin RSS-leser (jeg bruker
-akregator selv), og så automatisk få beskjed hvis det dukker opp anbud
-med det aktuelle nøkkelordet i teksten. Merk at kapasiteten og
-ytelsen hos Scraperwiki er begrenset, så ikke be RSS-leseren hente ned
-oftere enn en gang hver dag.</p>
-
-<p>Du lurer kanskje på hva slags informasjon en kan få ut fra denne
-databasen. Her er to RSS-kilder, med søkeordet
-"<a href="https://api.scraperwiki.com/api/1.0/datastore/sqlite?format=rss2&name=norwegian-doffin&query=select%20title%2C%20scrapedurl%20as%20link%2C%20abstract%20as%20description%2C%0A%20%20%20%20%20%20%20publishdate%20as%20pubDate%20from%20'swdata'%0A%20%20%20where%20abstract%20like%20'%25linux%25'%20or%20title%20like%20'%25linux%25'%0A%20%20%20order%20by%20seq%20desc%20limit%2020">linux</a>",
-søkeordet
-"<a href="https://api.scraperwiki.com/api/1.0/datastore/sqlite?format=rss2&name=norwegian-doffin&query=select%20title%2C%20scrapedurl%20as%20link%2C%20abstract%20as%20description%2C%0A%20%20%20%20%20%20%20publishdate%20as%20pubDate%20from%20'swdata'%0A%20%20%20where%20abstract%20like%20'%25fri%20programvare%25'%20or%20title%20like%20'%25fri%20programvare%25'%0A%20%20%20order%20by%20seq%20desc%20limit%2020">fri
-programvare</a>"
-og søkeordet
-"<a href="https://api.scraperwiki.com/api/1.0/datastore/sqlite?format=rss2&name=norwegian-doffin&query=select%20title%2C%20scrapedurl%20as%20link%2C%20abstract%20as%20description%2C%0A%20%20%20%20%20%20%20publishdate%20as%20pubDate%20from%20'swdata'%0A%20%20%20where%20abstract%20like%20'%25odf%25'%20or%20title%20like%20'%25odf%25'%0A%20%20%20order%20by%20seq%20desc%20limit%2020">odf</a>".
-Det er bare å søke på det en er interessert i. Kopier gjerne
-datasettet og sett opp din egen tjeneste hvis du vil gjøre mer
-avanserte søk. SQLite-filen med Doffin-oppføringer kan lastes med fra
-Scraperwiki for de som vil grave dypere.</p>
-</description>
- </item>
-
- <item>
- <title>All drones should be radio marked with what they do and who they belong to</title>
- <link>http://people.skolelinux.org/pere/blog/All_drones_should_be_radio_marked_with_what_they_do_and_who_they_belong_to.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/All_drones_should_be_radio_marked_with_what_they_do_and_who_they_belong_to.html</guid>
- <pubDate>Thu, 21 Nov 2013 15:40:00 +0100</pubDate>
- <description><p>Drones, flying robots, are getting more and more popular. The most
-know ones are the killer drones used by some government to murder
-people they do not like without giving them the chance of a fair
-trial, but the technology have many good uses too, from mapping and
-forest maintenance to photography and search and rescue. I am sure it
-is just a question of time before "bad drones" are in the hands of
-private enterprises and not only state criminals but petty criminals
-too. The drone technology is very useful and very dangerous. To have
-some control over the use of drones, I agree with Daniel Suarez in his
-TED talk
-"<a href="https://archive.org/details/DanielSuarez_2013G">The kill
-decision shouldn't belong to a robot</a>", where he suggested this
-little gem to keep the good while limiting the bad use of drones:</p>
-
-<blockquote>
-
-<p>Each robot and drone should have a cryptographically signed
-I.D. burned in at the factory that can be used to track its movement
-through public spaces. We have license plates on cars, tail numbers on
-aircraft. This is no different. And every citizen should be able to
-download an app that shows the population of drones and autonomous
-vehicles moving through public spaces around them, both right now and
-historically. And civic leaders should deploy sensors and civic drones
-to detect rogue drones, and instead of sending killer drones of their
-own up to shoot them down, they should notify humans to their
-presence. And in certain very high-security areas, perhaps civic
-drones would snare them and drag them off to a bomb disposal facility.</p>
-
-<p>But notice, this is more an immune system than a weapons system. It
-would allow us to avail ourselves of the use of autonomous vehicles
-and drones while still preserving our open, civil society.</p>
-
-</blockquote>
-
-<p>The key is that <em>every citizen</em> should be able to read the
-radio beacons sent from the drones in the area, to be able to check
-both the government and others use of drones. For such control to be
-effective, everyone must be able to do it. What should such beacon
-contain? At least formal owner, purpose, contact information and GPS
-location. Probably also the origin and target position of the current
-flight. And perhaps some registration number to be able to look up
-the drone in a central database tracking their movement. Robots
-should not have privacy. It is people who need privacy.</p>
-</description>
- </item>
-
- <item>
- <title>Lets make a wireless community network in Oslo!</title>
- <link>http://people.skolelinux.org/pere/blog/Lets_make_a_wireless_community_network_in_Oslo_.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Lets_make_a_wireless_community_network_in_Oslo_.html</guid>
- <pubDate>Wed, 13 Nov 2013 21:00:00 +0100</pubDate>
- <description><p>Today NUUG and Hackeriet announced
-<a href="http://www.nuug.no/news/Bli_med___bygge_dugnadsnett_for_alle_i_Oslo.shtml">our
-plans to join forces and create a wireless community network in
-Oslo</a>. The workshop to help people get started will take place
-Thursday 2013-11-28, but we already are collecting the geolocation of
-people joining forces to make this happen. We have
-<a href="https://github.com/petterreinholdtsen/meshfx-node/blob/master/oslo-nodes.geojson">9
-locations plotted on the map</a>, but we will need more before we have
-a connected mesh spread across Oslo. If this sound interesting to
-you, please join us at the workshop. If you are too impatient to wait
-15 days, please join us on the IRC channel
-<a href="irc://irc.freenode.net/%23nuug">#nuug on irc.freenode.net</a>
-right away. :)</p>
-</description>
- </item>
-
- <item>
- <title>Running TP-Link MR3040 as a batman-adv mesh node using openwrt</title>
- <link>http://people.skolelinux.org/pere/blog/Running_TP_Link_MR3040_as_a_batman_adv_mesh_node_using_openwrt.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Running_TP_Link_MR3040_as_a_batman_adv_mesh_node_using_openwrt.html</guid>
- <pubDate>Sun, 10 Nov 2013 23:00:00 +0100</pubDate>
- <description><p>Continuing my research into mesh networking, I was recommended to
-use TP-Link 3040 and 3600 access points as mesh nodes, and the pair I
-bought arrived on Friday. Here are my notes on how to set up the
-MR3040 as a mesh node using
-<a href="http://www.openwrt.org/">OpenWrt</a>.</p>
-
-<p>I started by following the instructions on the OpenWRT wiki for
-<a href="http://wiki.openwrt.org/toh/tp-link/tl-mr3040">TL-MR3040</a>,
-and downloaded
-<a href="http://downloads.openwrt.org/snapshots/trunk/ar71xx/openwrt-ar71xx-generic-tl-mr3040-v2-squashfs-factory.bin">the
-recommended firmware image</a>
-(openwrt-ar71xx-generic-tl-mr3040-v2-squashfs-factory.bin) and
-uploaded it into the original web interface. The flashing went fine,
-and the machine was available via telnet on the ethernet port. After
-logging in and setting the root password, ssh was available and I
-could start to set it up as a batman-adv mesh node.</p>
-
-<p>I started off by reading the instructions from
-<a href="http://wirelessafrica.meraka.org.za/wiki/index.php?title=Antoine's_Research">Wireless
-Africa</a>, which had quite a lot of useful information, but
-eventually I followed the recipe from the Open Mesh wiki for
-<a href="http://www.open-mesh.org/projects/batman-adv/wiki/Batman-adv-openwrt-config">using
-batman-adv on OpenWrt</a>. A small snag was the fact that the
-<tt>opkg install kmod-batman-adv</tt> command did not work as it
-should. The batman-adv kernel module would fail to load because its
-dependency crc16 was not already loaded. I
-<a href="https://dev.openwrt.org/ticket/14452">reported the bug</a> to
-the openwrt project and hope it will be fixed soon. But the problem
-only seem to affect initial testing of batman-adv, as configuration
-seem to work when booting from scratch.</p>
-
-<p>The setup is done using files in /etc/config/. I did not bridge
-the Ethernet and mesh interfaces this time, to be able to hook up the
-box on my local network and log into it for configuration updates.
-The following files were changed and look like this after modifying
-them:</p>
-
-<p><tt>/etc/config/network</tt></p>
-
-<pre>
-
-config interface 'loopback'
- option ifname 'lo'
- option proto 'static'
- option ipaddr '127.0.0.1'
- option netmask '255.0.0.0'
-
-config globals 'globals'
- option ula_prefix 'fdbf:4c12:3fed::/48'
-
-config interface 'lan'
- option ifname 'eth0'
- option type 'bridge'
- option proto 'dhcp'
- option ipaddr '192.168.1.1'
- option netmask '255.255.255.0'
- option hostname 'tl-mr3040'
- option ip6assign '60'
-
-config interface 'mesh'
- option ifname 'adhoc0'
- option mtu '1528'
- option proto 'batadv'
- option mesh 'bat0'
-</pre>
-
-<p><tt>/etc/config/wireless</tt></p>
-<pre>
-
-config wifi-device 'radio0'
- option type 'mac80211'
- option channel '11'
- option hwmode '11ng'
- option path 'platform/ar933x_wmac'
- option htmode 'HT20'
- list ht_capab 'SHORT-GI-20'
- list ht_capab 'SHORT-GI-40'
- list ht_capab 'RX-STBC1'
- list ht_capab 'DSSS_CCK-40'
- option disabled '0'
-
-config wifi-iface 'wmesh'
- option device 'radio0'
- option ifname 'adhoc0'
- option network 'mesh'
- option encryption 'none'
- option mode 'adhoc'
- option bssid '02:BA:00:00:00:01'
- option ssid 'meshfx@hackeriet'
-</pre>
-<p><tt>/etc/config/batman-adv</tt></p>
-<pre>
-
-config 'mesh' 'bat0'
- option interfaces 'adhoc0'
- option 'aggregated_ogms'
- option 'ap_isolation'
- option 'bonding'
- option 'fragmentation'
- option 'gw_bandwidth'
- option 'gw_mode'
- option 'gw_sel_class'
- option 'log_level'
- option 'orig_interval'
- option 'vis_mode'
- option 'bridge_loop_avoidance'
- option 'distributed_arp_table'
- option 'network_coding'
- option 'hop_penalty'
-
-# yet another batX instance
-# config 'mesh' 'bat5'
-# option 'interfaces' 'second_mesh'
-</pre>
-
-<p>The mesh node is now operational. I have yet to test its range,
-but I hope it is good. I have not yet tested the TP-Link 3600 box
-still wrapped up in plastic.</p>
-</description>
- </item>
-
</channel>
</rss>
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