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[homepage.git] / blog / index.rss

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        <channel>
                <title>Petter Reinholdtsen</title>
                <description></description>
        <channel>
                <title>Petter Reinholdtsen</title>
                <description></description>

-                <link></link>
-                <atom:link href="index.rss" rel="self" type="application/rss+xml" />
+                <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" />

        
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-               <title>Standarder fungerer best når en samler seg rundt dem</title>
-               <link>Standarder_fungerer_best_n__r_en_samler_seg_rundt_dem.html</link>
-               <guid isPermaLink="true">Standarder_fungerer_best_n__r_en_samler_seg_rundt_dem.html</guid>
-                <pubDate>Tue, 19 May 2009 11:30:00 +0200</pubDate>
+               <title>Idea for storing LTSP configuration in LDAP</title>
+               <link>http://people.skolelinux.org/pere/blog/Idea_for_storing_LTSP_configuration_in_LDAP.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Idea_for_storing_LTSP_configuration_in_LDAP.html</guid>
+                <pubDate>Sun, 11 Jul 2010 22:00:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;En standard er noe man samler seg rundt, ut fra ideen om at en får
-fordeler når mange står sammen.  Jo flere som står sammen, jo
-bedre.  Når en vet dette, blir det litt merkelig å lese noen av
-uttalelsene som er kommet inn til
-&lt;a href=&quot;http://www.regjeringen.no/nb/dep/fad/dok/horinger/horingsdokumenter/2009/horing---referansekatalog-versjon-2/horingsuttalelser.html?id=549423&quot;&gt;høringen
-om versjon 2 av statens referansekatalog over standarder&lt;/a&gt;.  Blant
-annet Abelia, NHO og Microsoft tror det er lurt med flere standarder
-innenfor samme område.  Det blir som å si at det er fint om Norge
-standardiserte både på A4- og Letter-størrelser på arkene, ulik
-sporvidde på jernbaneskinnene, meter og fot som lengemål, eller
-høyre- og venstrekjøring - slik at en kan konkurrere på hvilken
-standard som er best.  De fleste forstår heldigvis at dette ikke
-bidrar positivt.&lt;/p&gt;
+&lt;p&gt;Vagrant mentioned on IRC today that ltsp_config now support
+sourcing files from /usr/share/ltsp/ltsp_config.d/ on the thin
+clients, and that this can be used to fetch configuration from LDAP if
+Debian Edu choose to store configuration there.&lt;/p&gt;
+
+&lt;p&gt;Armed with this information, I got inspired and wrote a test module
+to get configuration from LDAP.  The idea is to look up the MAC
+address of the client in LDAP, and look for attributes on the form
+ltspconfigsetting=value, and use this to export SETTING=value to the
+LTSP clients.&lt;/p&gt;
+
+&lt;p&gt;The goal is to be able to store the LTSP configuration attributes
+in a &quot;computer&quot; LDAP object used by both DNS and DHCP, and thus
+allowing us to store all information about a computer in one place.&lt;/p&gt;
+
+&lt;p&gt;This is a untested draft implementation, and I welcome feedback on
+this approach.  A real LDAP schema for the ltspClientAux objectclass
+need to be written.  Comments, suggestions, etc?&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;pre&gt;
+# Store in /opt/ltsp/$arch/usr/share/ltsp/ltsp_config.d/ldap-config
+#
+# Fetch LTSP client settings from LDAP based on MAC address
+#
+# Uses ethernet address as stored in the dhcpHost objectclass using
+# the dhcpHWAddress attribute or ethernet address stored in the
+# ieee802Device objectclass with the macAddress attribute.
+#
+# This module is written to be schema agnostic, and only depend on the
+# existence of attribute names.
+#
+# The LTSP configuration variables are saved directly using a
+# ltspConfig prefix and uppercasing the rest of the attribute name.
+# To set the SERVER variable, set the ltspConfigServer attribute.
+#
+# Some LDAP schema should be created with all the relevant
+# configuration settings.  Something like this should work:
+# 
+# objectclass ( 1.1.2.2 NAME &#39;ltspClientAux&#39;
+#     SUP top
+#     AUXILIARY
+#     MAY ( ltspConfigServer $ ltsConfigSound $ ... )
+
+LDAPSERVER=$(debian-edu-ldapserver)
+if [ &quot;$LDAPSERVER&quot; ] ; then
+    LDAPBASE=$(debian-edu-ldapserver -b)
+    for MAC in $(LANG=C ifconfig |grep -i hwaddr| awk &#39;{print $5}&#39;|sort -u) ; do
+       filter=&quot;(|(dhcpHWAddress=ethernet $MAC)(macAddress=$MAC))&quot;
+       ldapsearch -h &quot;$LDAPSERVER&quot; -b &quot;$LDAPBASE&quot; -v -x &quot;$filter&quot; | \
+           grep &#39;^ltspConfig&#39; | while read attr value ; do
+           # Remove prefix and convert to upper case
+           attr=$(echo $attr | sed &#39;s/^ltspConfig//i&#39; | tr a-z A-Z)
+           # bass value on to clients
+           eval &quot;$attr=$value; export $attr&quot;
+       done
+    done
+fi
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;I&#39;m not sure this shell construction will work, because I suspect
+the while block might end up in a subshell causing the variables set
+there to not show up in ltsp-config, but if that is the case I am sure
+the code can be restructured to make sure the variables are passed on.
+I expect that can be solved with some testing. :)&lt;/p&gt;
+
+&lt;p&gt;If you want to help out with implementing this for Debian Edu,
+please contact us on debian-edu@lists.debian.org.&lt;/p&gt;

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-               <title>BSAs påstander om piratkopiering møter motstand</title>
-               <link>BSAs_p__stander_om_piratkopiering_m__ter_motstand.html</link>
-               <guid isPermaLink="true">BSAs_p__stander_om_piratkopiering_m__ter_motstand.html</guid>
-                <pubDate>Sun, 17 May 2009 23:05:00 +0200</pubDate>
+               <title>jXplorer, a very nice LDAP GUI</title>
+               <link>http://people.skolelinux.org/pere/blog/jXplorer__a_very_nice_LDAP_GUI.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/jXplorer__a_very_nice_LDAP_GUI.html</guid>
+                <pubDate>Fri, 9 Jul 2010 12:55:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;Hvert år de siste årene har BSA, lobbyfronten til de store
-programvareselskapene som Microsoft og Apple, publisert en rapport der
-de gjetter på hvor mye piratkopiering påfører i tapte inntekter i
-ulike land rundt om i verden.  Resultatene er tendensiøse.  For noen
-dager siden kom
-&lt;a href=&quot;http://global.bsa.org/globalpiracy2008/studies/globalpiracy2008.pdf&quot;&gt;siste
-rapport&lt;/a&gt;, og det er flere kritiske kommentarer publisert de siste
-dagene.  Et spesielt interessant kommentar fra Sverige,
-&lt;a href=&quot;http://www.idg.se/2.1085/1.229795/bsa-hoftade-sverigesiffror&quot;&gt;BSA
-höftade Sverigesiffror&lt;/a&gt;, oppsummeres slik:&lt;/p&gt;
-
-&lt;blockquote&gt;
-I sin senaste rapport slår BSA fast att 25 procent av all mjukvara i
-Sverige är piratkopierad. Det utan att ha pratat med ett enda svenskt
-företag. &quot;Man bör nog kanske inte se de här siffrorna som helt
-exakta&quot;, säger BSAs Sverigechef John Hugosson.
-&lt;/blockquote&gt;
-
-&lt;p&gt;Mon tro om de er like metodiske når de gjetter på andelen piratkopiering i Norge?  To andre kommentarer er &lt;a
-href=&quot;http://www.vnunet.com/vnunet/comment/2242134/bsa-piracy-figures-shot-reality&quot;&gt;BSA
-piracy figures need a shot of reality&lt;/a&gt; og &lt;a
-href=&quot;http://www.michaelgeist.ca/content/view/3958/125/&quot;&gt;Does The WIPO
-Copyright Treaty Work?&lt;/a&gt;&lt;/p&gt;
-
-&lt;p&gt;Fant lenkene via &lt;a
-href=&quot;http://tech.slashdot.org/article.pl?sid=09/05/17/1632242&quot;&gt;oppslag
-på Slashdot&lt;/a&gt;.&lt;/p&gt;
+&lt;p&gt;Since
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/LUMA__a_very_nice_LDAP_GUI.html&quot;&gt;my
+last post&lt;/a&gt; about available LDAP tools in Debian, I was told about a
+LDAP GUI that is even better than luma.  The java application
+&lt;a href=&quot;http://jxplorer.org/&quot;&gt;jXplorer&lt;/a&gt; is claimed to be capable of
+moving LDAP objects and subtrees using drag-and-drop, and can
+authenticate using Kerberos.  I have only tested the Kerberos
+authentication, but do not have a LDAP setup allowing me to rewrite
+LDAP with my test user yet.  It is
+&lt;a href=&quot;http://packages.qa.debian.org/j/jxplorer.html&quot;&gt;available in
+Debian&lt;/a&gt; testing and unstable at the moment.  The only problem I
+have with it is how it handle errors.  If something go wrong, its
+non-intuitive behaviour require me to go through some query work list
+and remove the failing query.  Nothing big, but very annoying.&lt;/p&gt;

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-               <title>Webbasert tegneseriearkiv på trappene</title>
-               <link>Webbasert_tegneseriearkiv_p___trappene.html</link>
-               <guid isPermaLink="true">Webbasert_tegneseriearkiv_p___trappene.html</guid>
-                <pubDate>Sat, 16 May 2009 19:05:00 +0200</pubDate>
+               <title>MS Word krøller det til for politiet?</title>
+               <link>http://people.skolelinux.org/pere/blog/MS_Word_kr__ller_det_til_for_politiet_.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/MS_Word_kr__ller_det_til_for_politiet_.html</guid>
+                <pubDate>Thu, 8 Jul 2010 14:00:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;For noen dager siden ble jeg tipset om en ny norsk webtjeneste for
-å holde styr på ens tegneseriesamling.  Har så smått begynt å
-teste den og lagt inn noen hundre oppføringer, og det ser ut til å
-fungere fint.  Utvikleren, Trond Hallstensen, er selv ivrig samler og
-har laget systemet i første omgang for seg selv, men altså gjort det
-mulig også for andre å bidra.  Tjenesten har potensiale til å bli
-en komplett og verdifull tegneserieindeks over norske serier.  Da jeg
-oppdaget tjenesten var det endel mangler som gjorde meg skeptisk til
-å registrere min samling der.  Det var nemlig ingen måte å hente ut
-en maskinlesbar oversikt over det jeg registrerte, slik at mine data
-ville være innelåst i tjenesten.  Siden den gang har Trond lagt til
-en eksportfunksjon til CSV-format, slik at i hvert fall noen av
-feltene i databasen kan hentes ut for mine serier.  Pr. i dag er det
-serie, seriegruppe, år, nr og tittel_på_forside.&lt;/p&gt;
-
-&lt;p&gt;Prinsipielt ønsker jeg å kunne hente ut alle feltene om en
-tegneserie, for å unngå repetisjon av det som skjedde med IMDB og
-CDDB på 90-tallet.  Begge begynte som fellesskapsprosjekter der
-brukerne bidro på like vilkår, og ble lukket inne da
-initiativtageren og innehaveren av maskinen der tjenesten kjørte
-hadde fått nok innhold til at de ikke lenger følte at de trengte å
-behandle brukerne som likemenn.  Trond har skrevet til meg at flere
-felter vil bli lagt inn i eksporten (blant annet strekkode), men
-uttrykt skepsis til å gjøre all informasjonen tilgjengelig (han
-ønsker slik jeg forsto han å kontrollere tjenesten og ikke gjøre
-det mulig å lage konkurrerende tjeneste).  Holdningen gjør meg ennå
-mer skeptisk, men tjenesten fungerer fint, så jeg har bestemt meg for
-å ta den i bruk, men begrense meg til å registrere informasjon som
-er tilgjengelig i eksporten.&lt;/p&gt;
-
-&lt;p&gt;Har ennå ikke begynt masseregistrering, da jeg venter på støtte for
-strekkoder i tjenesten.  Har strekkodeleser, og vil spare litt tid i
-registreringen når jeg går løs på mine esker.  Foreløbig har jeg
-registrert litt tilfeldige serier som ligger rundt om i huset, men for
-å få et komplett arkiv må nok noen tusen tegneserier registreres.&lt;/p&gt;
-
-&lt;p&gt;Løsningen er i følge utvikleren laget med et Oracle-spesifikt
-verktøy for å lage webtjenester, og ikke fri programvare.
-Utvikleren tar imot innspill men det hørtes ikke ut som om utvikling
-av systemet var enkelt å dele mellom flere, slik at det må via
-ham.&lt;/p&gt;
-
-&lt;p&gt;Høres dette interessant ut, besøk
-&lt;a href=&quot;http://www.mineserier.no/&quot;&gt;mineserier.no&lt;/a&gt; og ta en
-titt.&lt;/p&gt;
+&lt;p&gt;De siste dagene har Aftenposten
+&lt;a href=&quot;http://www.aftenposten.no/nyheter/iriks/article3718597.ece&quot;&gt;fortalt&lt;/a&gt;
+&lt;a href=&quot;http://www.aftenposten.no/nyheter/iriks/article3724249.ece&quot;&gt;hvordan&lt;/a&gt;
+politet har brukt skriveverktøy som ikke håndterer arabisk tekst og
+tekst som skal skrives fra høyre mot venstre når de har laget
+løpeseddel for å be om informasjon fra publikum.  Resultatet har vært
+en uleselig arabisk-bit på løpeseddelen.  Feilen har oppstått når
+teksten har blitt &quot;kopiert inn i programvare som ikke har støtte for
+språk som skrives fra høyre mot venstre&quot;, og jeg er ganske sikker på
+at det er snakk om Microsoft Office i dette tilfellet.  Er det slik at
+MS Office i norsk språkdrakt ikke har støtte for tekst som skal
+skrives fra høyre mot venstre?  Jeg tror alle utgaver av
+OpenOffice.org har slik støtte, og det er jo ikke veldig vanskelig å
+la slik støtte finnes i alle utgaver av et program hvis støtten først
+er utviklet.  Aftenpostens melding får meg til å undre om problemet
+ville vært unngått hvis politiet brukte OpenOffice.org i stedet for MS
+Office.&lt;/p&gt;
+
+&lt;p&gt;Mon tro om det er flere eksempler på at MS Office har ødelagt for
+offentlig myndighet?&lt;/p&gt;

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-               <title>Massiv overvåkning av kollektivtrafikken i Oslo planlegges</title>
-               <link>Massiv_overv__kning_av_kollektivtrafikken_i_Oslo_planlegges.html</link>
-               <guid isPermaLink="true">Massiv_overv__kning_av_kollektivtrafikken_i_Oslo_planlegges.html</guid>
-                <pubDate>Sat, 16 May 2009 09:30:00 +0200</pubDate>
+               <title>Lenny-&gt;Squeeze upgrades, apt vs aptitude with the Gnome desktop</title>
+               <link>http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades__apt_vs_aptitude_with_the_Gnome_desktop.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades__apt_vs_aptitude_with_the_Gnome_desktop.html</guid>
+                <pubDate>Sat, 3 Jul 2010 23:55:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;&lt;a href=&quot;http://www.aftenposten.no/nyheter/oslo/article3078919.ece&quot;&gt;Flere&lt;/a&gt;
-og
-&lt;a href=&quot;http://blogg.karlsbakk.net/2009/02/28/nsb-ruter-og-flexus/&quot;&gt;flere&lt;/a&gt;
-protesterer på den massive overvåkningen og registrering av
-trafikkmønster i kollektivtrafikken som planlegges i Oslo.  Det er
-bra.  Jeg mister lysten til å bruke kollektivtransport når jeg ser
-hvordan trafikkselskapet holder på.  Jeg forventer og forlanger å
-ikke bli overvåket med mindre jeg mistenkes for å ha gjort noe
-alvorlig galt.  Den massive registreringen av hvor og når
-passasjerene reiser med kollektivtrafikk som planegges av Ruter i Oslo
-er et grotesk overgrep mot alle som bruker buss, trikk T-bane og tog i
-Osloområdet.&lt;/p&gt;
+&lt;p&gt;Here is a short update on my &lt;a
+href=&quot;http://people.skolelinux.org/~pere/debian-upgrade-testing/&quot;&gt;my
+Debian Lenny-&gt;Squeeze upgrade testing&lt;/a&gt;.  Here is a summary of the
+difference for Gnome when it is upgraded by apt-get and aptitude.  I&#39;m
+not reporting the status for KDE, because the upgrade crashes when
+aptitude try because of missing conflicts
+(&lt;a href=&quot;http://bugs.debian.org/584861&quot;&gt;#584861&lt;/a&gt; and
+&lt;a href=&quot;http://bugs.debian.org/585716&quot;&gt;#585716&lt;/a&gt;).&lt;/p&gt;
+
+&lt;p&gt;At the end of the upgrade test script, dpkg -l is executed to get a
+complete list of the installed packages.  Based on this I see these
+differences when I did a test run today.  As usual, I do not really
+know what the correct set of packages would be, but thought it best to
+publish the difference.&lt;/p&gt;
+
+&lt;p&gt;Installed using apt-get, missing with aptitude&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;p&gt;
+  at-spi cpp-4.3 finger gnome-spell gstreamer0.10-gnomevfs
+  libatspi1.0-0 libcupsys2 libeel2-data libgail-common libgdl-1-common
+  libgnomeprint2.2-data libgnomeprintui2.2-common libgnomevfs2-bin
+  libgtksourceview-common libpt-1.10.10-plugins-alsa
+  libpt-1.10.10-plugins-v4l libservlet2.4-java libxalan2-java
+  libxerces2-java openoffice.org-writer2latex openssl-blacklist p7zip
+  python-4suite-xml python-eggtrayicon python-gtkhtml2
+  python-gtkmozembed svgalibg1 xserver-xephyr zip
+&lt;/p&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;Installed using apt-get, removed with aptitude&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;p&gt;
+  bluez-utils dhcdbd djvulibre-desktop epiphany-gecko
+  gnome-app-install gnome-mount gnome-vfs-obexftp gnome-volume-manager
+  libao2 libavahi-compat-libdnssd1 libavahi-core5 libbind9-50
+  libbluetooth2 libcamel1.2-11 libcdio7 libcucul0 libcurl3
+  libdirectfb-1.0-0 libdvdread3 libedata-cal1.2-6 libedataserver1.2-9
+  libeel2-2.20 libepc-1.0-1 libepc-ui-1.0-1 libexchange-storage1.2-3
+  libfaad0 libgd2-noxpm libgda3-3 libgda3-common libggz2 libggzcore9
+  libggzmod4 libgksu1.2-0 libgksuui1.0-1 libgmyth0 libgnome-desktop-2
+  libgnome-pilot2 libgnomecups1.0-1 libgnomeprint2.2-0
+  libgnomeprintui2.2-0 libgpod3 libgraphviz4 libgtkhtml2-0
+  libgtksourceview1.0-0 libgucharmap6 libhesiod0 libicu38 libisccc50
+  libisccfg50 libiw29 libkpathsea4 libltdl3 liblwres50 libmagick++10
+  libmagick10 libmalaga7 libmtp7 libmysqlclient15off libnautilus-burn4
+  libneon27 libnm-glib0 libnm-util0 libopal-2.2 libosp5
+  libparted1.8-10 libpisock9 libpisync1 libpoppler-glib3 libpoppler3
+  libpt-1.10.10 libraw1394-8 libsensors3 libsmbios2 libsoup2.2-8
+  libssh2-1 libsuitesparse-3.1.0 libswfdec-0.6-90 libtalloc1
+  libtotem-plparser10 libtrackerclient0 libvoikko1 libxalan2-java-gcj
+  libxerces2-java-gcj libxklavier12 libxtrap6 libxxf86misc1 libzephyr3
+  mysql-common swfdec-gnome totem-gstreamer wodim
+&lt;/p&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;Installed using aptitude, missing with apt-get&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;p&gt;
+  gnome gnome-desktop-environment hamster-applet python-gnomeapplet
+  python-gnomekeyring python-wnck rhythmbox-plugins xorg
+  xserver-xorg-input-all xserver-xorg-input-evdev
+  xserver-xorg-input-kbd xserver-xorg-input-mouse
+  xserver-xorg-input-synaptics xserver-xorg-video-all
+  xserver-xorg-video-apm xserver-xorg-video-ark xserver-xorg-video-ati
+  xserver-xorg-video-chips xserver-xorg-video-cirrus
+  xserver-xorg-video-dummy xserver-xorg-video-fbdev
+  xserver-xorg-video-glint xserver-xorg-video-i128
+  xserver-xorg-video-i740 xserver-xorg-video-mach64
+  xserver-xorg-video-mga xserver-xorg-video-neomagic
+  xserver-xorg-video-nouveau xserver-xorg-video-nv
+  xserver-xorg-video-r128 xserver-xorg-video-radeon
+  xserver-xorg-video-radeonhd xserver-xorg-video-rendition
+  xserver-xorg-video-s3 xserver-xorg-video-s3virge
+  xserver-xorg-video-savage xserver-xorg-video-siliconmotion
+  xserver-xorg-video-sis xserver-xorg-video-sisusb
+  xserver-xorg-video-tdfx xserver-xorg-video-tga
+  xserver-xorg-video-trident xserver-xorg-video-tseng
+  xserver-xorg-video-vesa xserver-xorg-video-vmware
+  xserver-xorg-video-voodoo
+&lt;/p&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;Installed using aptitude, removed with apt-get&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;p&gt;
+  deskbar-applet xserver-xorg xserver-xorg-core
+  xserver-xorg-input-wacom xserver-xorg-video-intel
+  xserver-xorg-video-openchrome
+&lt;/p&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;I was told on IRC that the xorg-xserver package was
+&lt;a href=&quot;http://git.debian.org/?p=pkg-xorg/xserver/xorg-server.git;a=commit;h=9c8080d06c457932d3bfec021c69ac000aa60120&quot;&gt;changed
+in git&lt;/a&gt; today to try to get apt-get to not remove xorg completely.
+No idea when it hits Squeeze, but when it does I hope it will reduce
+the difference somewhat.

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        <item>

-               <title>3D-printing brer om seg - fabrikkene består</title>
-               <link>3D_printing_brer_om_seg___fabrikkene_best__r.html</link>
-               <guid isPermaLink="true">3D_printing_brer_om_seg___fabrikkene_best__r.html</guid>
-                <pubDate>Sun, 10 May 2009 16:50:00 +0200</pubDate>
+               <title>Caching password, user and group on a roaming Debian laptop</title>
+               <link>http://people.skolelinux.org/pere/blog/Caching_password__user_and_group_on_a_roaming_Debian_laptop.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Caching_password__user_and_group_on_a_roaming_Debian_laptop.html</guid>
+                <pubDate>Thu, 1 Jul 2010 11:40:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;I 2004 fikk jeg med meg en forelesning om 3D-printing under &lt;a
-href=&quot;http://wiki.oreillynet.com/eurofoo/index.cgi&quot;&gt;euro foo camp&lt;/a&gt;
-der jeg lærte mye nytt om 3D-printing.  Fikk se et lite sjakktårn
-skrevet ut i plast, med vindeltrapp på innsiden av tårnet, og en hul
-gummiball som også var skrevet ut (med et lite hull for å få ut
-fyllmassen).  Ble fortalt at det amerikanske kavaleriet skriver ut
-reservedeler i metall i felt, og at det fantes amerikanske husbyggere
-som eksperimenterer med utskrift av hus.  De to siste har jeg ikke
-funnet noen referanser til i ettertid, og har derfor lurt på om det
-stemmer.  Teknologisk skulle det ikke være noe i veien for slike
-løsninger, det er kun et spørmål om pris på skrivehoder og
-skrivere.  I dag ble jeg tipset om en løsning som
-&lt;a href=&quot;http://www.shapeways.com/blog/archives/217-3D-printing-buildings-interview-with-Enrico-Dini-of-D_Shape.html&quot;&gt;kan
-skrive ut hus&lt;/a&gt;, med sand og bindemiddel i 25 DPI oppløsning.  Mon
-tro om det er fremtidens byggemetode.&lt;/p&gt;
-
-&lt;p&gt;Jeg er ikke i tvil om at 3D-utskrift vil føre til endringer i
-hvordan produksjon gjøres, og at tilgjengeligheten på en rekke produkter
-som i dag er vanskelig eller umulig å få tak i vil bedre seg.  Men de
-som tror at 3D-skrivere vil gjøre fabrikkene overflødige, tror jeg har
-forregnet seg.  3D-skrivere er fantastisk bra til å lage spesielle
-dingser på forespørsel, f.eks. etter å ha lastet ned et 3D-design fra
-tjenester som &lt;a href=&quot;http://www.thingiverse.com/&quot;&gt;Thingiverse&lt;/a&gt;.
-De er derimot ikke spesielt bra til å lage mange eksemplarer av samme
-dings.  Lav pris pr. enhet er fabrikkenes fortrinn.  Hvis det skal
-lages tusenvis, eller millioner av en dings, så vil fabrikkene
-sannsynligvis fortsette å slå 3D-skriving ned i støvlene
-økonomisk, selv om en tar hensyn til transport og logistikk.  Hvis
-det derimot skal lages en håndfull, så vil 3D-skriving fremstå som
-et suverent alternativ.  3D-skriving er i så måte løsning for
-&lt;a href=&quot;http://en.wikipedia.org/wiki/The_Long_Tail&quot;&gt;den lange
-halen&lt;/a&gt;, mens fabrikker nok fortsatt vil være løsningen for
-massemarkedet.&lt;/p&gt;
+&lt;p&gt;For a laptop, centralized user directories and password checking is
+a bit troubling.  Laptops are typically used also when not connected
+to the network, and it is vital for a user to be able to log in or
+unlock the screen saver also when a central server is unavailable.
+This is possible by caching passwords and directory information (user
+and group attributes) locally, and the packages to do so are available
+in Debian.  Here follow two recipes to set this up in Debian/Squeeze.
+It is also possible to set up in Debian/Lenny, but require more manual
+setup there because pam-auth-update is missing in Lenny.&lt;/p&gt;
+
+&lt;h2&gt;LDAP/Kerberos + nscd + libpam-ccreds + libpam-mklocaluser/pam_mkhomedir&lt;/h2&gt;
+
+This is the traditional method with a twist.  The password caching is
+provided by libpam-ccreds (version 10-4 or later is needed on
+Squeeze), and the directory caching is done by nscd.  The directory
+lookup and password checking is done using LDAP.  If one want to use
+Kerberos for password checking the libpam-ldapd package can be
+replaced with libpam-krb5 or libpam-heimdal.  If one is happy having a
+local home directory with the path listed in LDAP, one can use the
+pam_mkhomedir module from pam-modules to make this happen instead of
+using libpam-mklocaluser.  A setup for pam-auth-update to enable
+pam_mkhomedir will have to be written until a fix for
+&lt;a href=&quot;http://bugs.debian.org/568577&quot;&gt;bug #568577&lt;/a&gt; is in the
+archive.  Because I believe it is a bad idea to have local home
+directories using misleading paths like /site/server/partition/, I
+prefer to create a local user with the home directory in /home/.  This
+is done using the libpam-mklocaluser package.&lt;/p&gt;
+
+&lt;p&gt;These packages need to be installed and configured&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;pre&gt;
+libnss-ldapd libpam-ldapd nscd libpam-ccreds libpam-mklocaluser
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;The ldapd packages will ask for LDAP connection information, and
+one have to fill in the values that fits ones own site.  Make sure the
+PAM part uses encrypted connections, to make sure the password is not
+sent in clear text to the LDAP server.  I&#39;ve been unable to get TLS
+certificate checking for a self signed certificate working, which make
+LDAP authentication unsafe for Debian Edu (nslcd is not checking if it
+is talking to the correct LDAP server), and very much welcome feedback
+on how to get this working.&lt;/p&gt;
+
+&lt;p&gt;Because nscd do not have a default configuration fit for offline
+caching until &lt;a href=&quot;http://bugs.debian.org/485282&quot;&gt;bug #485282&lt;/a&gt;
+is fixed, this configuration should be used instead of the one
+currently in /etc/nscd.conf.  The changes are in the fields
+reload-count and positive-time-to-live, and is based on the
+instructions I found in the
+&lt;a href=&quot;http://www.flyn.org/laptopldap/&quot;&gt;LDAP for Mobile Laptops&lt;/a&gt;
+instructions by Flyn Computing.&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;pre&gt;
+       debug-level             0
+       reload-count            unlimited
+       paranoia                no
+
+       enable-cache            passwd          yes
+       positive-time-to-live   passwd          2592000
+       negative-time-to-live   passwd          20
+       suggested-size          passwd          211
+       check-files             passwd          yes
+       persistent              passwd          yes
+       shared                  passwd          yes
+       max-db-size             passwd          33554432
+       auto-propagate          passwd          yes
+
+       enable-cache            group           yes
+       positive-time-to-live   group           2592000
+       negative-time-to-live   group           20
+       suggested-size          group           211
+       check-files             group           yes
+       persistent              group           yes
+       shared                  group           yes
+       max-db-size             group           33554432
+       auto-propagate          group           yes
+
+       enable-cache            hosts           no
+       positive-time-to-live   hosts           2592000
+       negative-time-to-live   hosts           20
+       suggested-size          hosts           211
+       check-files             hosts           yes
+       persistent              hosts           yes
+       shared                  hosts           yes
+       max-db-size             hosts           33554432
+
+       enable-cache            services        yes
+       positive-time-to-live   services        2592000
+       negative-time-to-live   services        20
+       suggested-size          services        211
+       check-files             services        yes
+       persistent              services        yes
+       shared                  services        yes
+       max-db-size             services        33554432
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;While we wait for a mechanism to update /etc/nsswitch.conf
+automatically like the one provided in
+&lt;a href=&quot;http://bugs.debian.org/496915&quot;&gt;bug #496915&lt;/a&gt;, the file
+content need to be manually replaced to ensure LDAP is used as the
+directory service on the machine.  /etc/nsswitch.conf should normally
+look like this:&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;pre&gt;
+passwd:         files ldap
+group:          files ldap
+shadow:         files ldap
+hosts:          files mdns4_minimal [NOTFOUND=return] dns mdns4
+networks:       files
+protocols:      files
+services:       files
+ethers:         files
+rpc:            files
+netgroup:       files ldap
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;The important parts are that ldap is listed last for passwd, group,
+shadow and netgroup.&lt;/p&gt;
+
+&lt;p&gt;With these changes in place, any user in LDAP will be able to log
+in locally on the machine using for example kdm, get a local home
+directory created and have the password as well as user and group
+attributes cached.
+
+&lt;h2&gt;LDAP/Kerberos + nss-updatedb + libpam-ccreds +
+  libpam-mklocaluser/pam_mkhomedir&lt;/h2&gt;
+
+&lt;p&gt;Because nscd have had its share of problems, and seem to have
+problems doing proper caching, I&#39;ve seen suggestions and recipes to
+use nss-updatedb to copy parts of the LDAP database locally when the
+LDAP database is available.  I have not tested such setup, because I
+discovered sssd.&lt;/p&gt;
+
+&lt;h2&gt;LDAP/Kerberos + sssd + libpam-mklocaluser&lt;/h2&gt;
+
+&lt;p&gt;A more flexible and robust setup than the nscd combination
+mentioned earlier that has shown up recently, is the
+&lt;a href=&quot;https://fedorahosted.org/sssd/&quot;&gt;sssd&lt;/a&gt; package from Redhat.
+It is part of the &lt;a href=&quot;http://www.freeipa.org/&quot;&gt;FreeIPA&lt;/A&gt; project
+to provide a Active Directory like directory service for Linux
+machines.  The sssd system combines the caching of passwords and user
+information into one package, and remove the need for nscd and
+libpam-ccreds.  It support LDAP and Kerberos, but not NIS.  Version
+1.2 do not support netgroups, but it is said that it will support this
+in version 1.5 expected to show up later in 2010.  Because the
+&lt;a href=&quot;http://packages.qa.debian.org/s/sssd.html&quot;&gt;sssd package&lt;/a&gt;
+was missing in Debian, I ended up co-maintaining it with Werner, and
+version 1.2 is now in testing.
+
+&lt;p&gt;These packages need to be installed and configured to get the
+roaming setup I want&lt;/p&gt;
+
+&lt;blockquote&gt;&lt;pre&gt;
+libpam-sss libnss-sss libpam-mklocaluser
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+The complete setup of sssd is done by editing/creating
+&lt;tt&gt;/etc/sssd/sssd.conf&lt;/tt&gt;.
+
+&lt;blockquote&gt;&lt;pre&gt;
+[sssd]
+config_file_version = 2
+reconnection_retries = 3
+sbus_timeout = 30
+services = nss, pam
+domains = INTERN
+
+[nss]
+filter_groups = root
+filter_users = root
+reconnection_retries = 3
+
+[pam]
+reconnection_retries = 3
+
+[domain/INTERN]
+enumerate = false
+cache_credentials = true
+
+id_provider = ldap
+auth_provider = ldap
+chpass_provider = ldap
+
+ldap_uri = ldap://ldap
+ldap_search_base = dc=skole,dc=skolelinux,dc=no
+ldap_tls_reqcert = never
+ldap_tls_cacert = /etc/ssl/certs/ca-certificates.crt
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;I got the same problem here with certificate checking.  Had to set
+&quot;ldap_tls_reqcert = never&quot; to get it working.&lt;/p&gt;
+
+&lt;p&gt;With the libnss-sss package in testing at the moment, the
+nsswitch.conf file is update automatically, so there is no need to
+modify it manually.&lt;/p&gt;
+
+&lt;p&gt;If you want to help out with implementing this for Debian Edu,
+please contact us on debian-edu@lists.debian.org.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Lenker samlet 2009-05-09</title>
-               <link>Lenker_samlet_2009_05_09.html</link>
-               <guid isPermaLink="true">Lenker_samlet_2009_05_09.html</guid>
-                <pubDate>Sat, 9 May 2009 22:40:00 +0200</pubDate>
+               <title>LUMA, a very nice LDAP GUI</title>
+               <link>http://people.skolelinux.org/pere/blog/LUMA__a_very_nice_LDAP_GUI.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/LUMA__a_very_nice_LDAP_GUI.html</guid>
+                <pubDate>Mon, 28 Jun 2010 00:30:00 +0200</pubDate>

                <description>
                <description>

-&lt;ul&gt;
+&lt;p&gt;The last few days I have been looking into the status of the LDAP
+directory in Debian Edu, and in the process I started to miss a GUI
+tool to browse the LDAP tree.  The only one I was able to find in
+Debian/Squeeze and Lenny is
+&lt;a href=&quot;http://luma.sourceforge.net/&quot;&gt;LUMA&lt;/a&gt;, which has proved to
+be a great tool to get a overview of the current LDAP directory
+populated by default in Skolelinux.  Thanks to it, I have been able to
+find empty and obsolete subtrees, misplaced objects and duplicate
+objects.  It will be installed by default in Debian/Squeeze.  If you
+are working with LDAP, give it a go. :)&lt;/p&gt;

 
 

-&lt;li&gt;&lt;a href=&quot;http://www.aftenposten.no/meninger/kronikker/article3066834.ece&quot;&gt;Jeg, et offer&lt;/a&gt;
-&lt;br&gt;Aage Borchgrevink drodler om offerrollens framvekst i den norske
-offentligheten.&lt;/li&gt;
+&lt;p&gt;I did notice one problem with it I have not had time to report to
+the BTS yet.  There is no .desktop file in the package, so the tool do
+not show up in the Gnome and KDE menus, but only deep down in in the
+Debian submenu in KDE.  I hope that can be fixed before Squeeze is
+released.&lt;/p&gt;

 
 

-&lt;li&gt;&lt;a href=&quot;http://www.nuug.no/pub/video/published/200904-goopen.html&quot;&gt;Opptak fra Go Open 2009 på web&lt;/a&gt;
-&lt;br&gt;Endelig kan jeg få med meg foredragene jeg gikk glipp av.&lt;/li&gt;
+&lt;p&gt;I have not yet been able to get it to modify the tree yet.  I would
+like to move objects and remove subtrees directly in the GUI, but have
+not found a way to do that with LUMA yet.  So in the mean time, I use
+&lt;a href=&quot;http://www.lichteblau.com/ldapvi/&quot;&gt;ldapvi&lt;/a&gt; for that.&lt;/p&gt;

 
 

-&lt;li&gt;&lt;a href=&quot;http://www.robweir.com/blog/2009/05/update-on-odf-spreadsheet.html&quot;&gt;MS Excel 2007 håndterer ODF dårlig&lt;/a&gt;
-&lt;br&gt;Microsoft har lykkes med å implementere ODF slik at de ikke
-samhandler med noen av de andre som håndterer ODF-regneark.&lt;/li&gt;
+&lt;p&gt;If you have tips on other GUI tools for LDAP that might be useful
+in Debian Edu, please contact us on debian-edu@lists.debian.org.&lt;/p&gt;

 
 

-&lt;li&gt;&lt;a href=&quot;http://www.groklaw.net/article.php?story=20090503215045379&quot;&gt;MS
-Word 2007 håndterer ODF dårlig&lt;/a&gt;
-&lt;br&gt;Fotnoter laget i MS Office blir merkelige i OpenOffice.org.&lt;/li&gt;
-
-&lt;/ul&gt;
+&lt;p&gt;Update 2010-06-29: Ross Reedstrom tipped us about the
+&lt;a href=&quot;http://packages.qa.debian.org/g/gq.html&quot;&gt;gq&lt;/a&gt; package as a
+useful GUI alternative.  It seem like a good tool, but is unmaintained
+in Debian and got a RC bug keeping it out of Squeeze.  Unless that
+changes, it will not be an option for Debian Edu based on Squeeze.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>IDG mener linux i servermarkedet vil vokse med 21% i 2009</title>
-               <link>IDG_mener_linux_i_servermarkedet_vil_vokse_med_21__i_2009.html</link>
-               <guid isPermaLink="true">IDG_mener_linux_i_servermarkedet_vil_vokse_med_21__i_2009.html</guid>
-                <pubDate>Thu, 7 May 2009 22:30:00 +0200</pubDate>
+               <title>Idea for a change to LDAP schemas allowing DNS and DHCP info to be combined into one object</title>
+               <link>http://people.skolelinux.org/pere/blog/Idea_for_a_change_to_LDAP_schemas_allowing_DNS_and_DHCP_info_to_be_combined_into_one_object.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Idea_for_a_change_to_LDAP_schemas_allowing_DNS_and_DHCP_info_to_be_combined_into_one_object.html</guid>
+                <pubDate>Thu, 24 Jun 2010 00:35:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;Kom over
-&lt;a href=&quot;http://news.cnet.com/8301-13505_3-10216873-16.html&quot;&gt;interessante
-tall&lt;/a&gt; fra IDG om utviklingen av linuxservermarkedet.  Fikk meg til
-å tenke på antall tjenermaskiner ved Universitetet i Oslo der jeg
-jobber til daglig.  En rask opptelling forteller meg at vi har 490
-(61%) fysiske unix-tjener (mest linux men også noen solaris) og 196
-(25%) windowstjenere, samt 112 (14%) virtuelle unix-tjenere.  Med den
-bakgrunnskunnskapen kan jeg godt tro at IDG er inne på noe.&lt;/p&gt;
+&lt;p&gt;A while back, I
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/Time_for_new__LDAP_schemas_replacing_RFC_2307_.html&quot;&gt;complained
+about the fact&lt;/a&gt; that it is not possible with the provided schemas
+for storing DNS and DHCP information in LDAP to combine the two sets
+of information into one LDAP object representing a computer.&lt;/p&gt;
+
+&lt;p&gt;In the mean time, I discovered that a simple fix would be to make
+the dhcpHost object class auxiliary, to allow it to be combined with
+the dNSDomain object class, and thus forming one object for one
+computer when storing both DHCP and DNS information in LDAP.&lt;/p&gt;
+
+&lt;p&gt;If I understand this correctly, it is not safe to do this change
+without also changing the assigned number for the object class, and I
+do not know enough about LDAP schema design to do that properly for
+Debian Edu.&lt;/p&gt;
+
+&lt;p&gt;Anyway, for future reference, this is how I believe we could change
+the
+&lt;a href=&quot;http://tools.ietf.org/html/draft-ietf-dhc-ldap-schema-00&quot;&gt;DHCP
+schema&lt;/a&gt; to solve at least part of the problem with the LDAP schemas
+available today from IETF.&lt;/p&gt;
+
+&lt;pre&gt;
+--- dhcp.schema    (revision 65192)
++++ dhcp.schema    (working copy)
+@@ -376,7 +376,7 @@
+ objectclass ( 2.16.840.1.113719.1.203.6.6
+        NAME &#39;dhcpHost&#39;
+        DESC &#39;This represents information about a particular client&#39;
+-       SUP top
++       SUP top AUXILIARY
+        MUST cn
+        MAY  (dhcpLeaseDN $ dhcpHWAddress $ dhcpOptionsDN $ dhcpStatements $ dhcpComments $ dhcpOption)
+        X-NDS_CONTAINMENT (&#39;dhcpService&#39; &#39;dhcpSubnet&#39; &#39;dhcpGroup&#39;) )
+&lt;/pre&gt;
+
+&lt;p&gt;I very much welcome clues on how to do this properly for Debian
+Edu/Squeeze.  We provide the DHCP schema in our debian-edu-config
+package, and should thus be free to rewrite it as we see fit.&lt;/p&gt;
+
+&lt;p&gt;If you want to help out with implementing this for Debian Edu,
+please contact us on debian-edu@lists.debian.org.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Kryptert harddisk - naturligvis</title>
-               <link>Kryptert_harddisk___naturligvis.html</link>
-               <guid isPermaLink="true">Kryptert_harddisk___naturligvis.html</guid>
-                <pubDate>Sat, 2 May 2009 15:30:00 +0200</pubDate>
+               <title>Calling tasksel like the installer, while still getting useful output</title>
+               <link>http://people.skolelinux.org/pere/blog/Calling_tasksel_like_the_installer__while_still_getting_useful_output.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Calling_tasksel_like_the_installer__while_still_getting_useful_output.html</guid>
+                <pubDate>Wed, 16 Jun 2010 14:55:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;&lt;a href=&quot;http://www.dagensit.no/trender/article1658676.ece&quot;&gt;Dagens
-IT melder&lt;/a&gt; at Intel hevder at det er dyrt å miste en datamaskin,
-når en tar tap av arbeidstid, fortrolige dokumenter,
-personopplysninger og alt annet det innebærer.  Det er ingen tvil om
-at det er en kostbar affære å miste sin datamaskin, og det er årsaken
-til at jeg har kryptert harddisken på både kontormaskinen og min
-bærbare.  Begge inneholder personopplysninger jeg ikke ønsker skal
-komme på avveie, den første informasjon relatert til jobben min ved
-Universitetet i Oslo, og den andre relatert til blant annet
-foreningsarbeide.  Kryptering av diskene gjør at det er lite
-sannsynlig at dophoder som kan finne på å rappe maskinene får noe ut
-av dem.  Maskinene låses automatisk etter noen minutter uten bruk,
-og en reboot vil gjøre at de ber om passord før de vil starte opp.
-Jeg bruker Debian på begge maskinene, og installasjonssystemet der
-gjør det trivielt å sette opp krypterte disker.  Jeg har LVM på toppen
-av krypterte partisjoner, slik at alt av datapartisjoner er kryptert.
-Jeg anbefaler alle å kryptere diskene på sine bærbare.  Kostnaden når
-det er gjort slik jeg gjør det er minimale, og gevinstene er
-betydelige.  En bør dog passe på passordet.  Hvis det går tapt, må
-maskinen reinstalleres og alt er tapt.&lt;/p&gt;
-
-&lt;p&gt;Krypteringen vil ikke stoppe kompetente angripere som f.eks. kjøler
-ned minnebrikkene før maskinen rebootes med programvare for å hente ut
-krypteringsnøklene.  Kostnaden med å forsvare seg mot slike angripere
-er for min del høyere enn gevinsten.  Jeg tror oddsene for at
-f.eks. etteretningsorganisasjoner har glede av å titte på mine
-maskiner er minimale, og ulempene jeg ville oppnå ved å forsøke å
-gjøre det vanskeligere for angripere med kompetanse og ressurser er
-betydelige.&lt;/p&gt;
+&lt;p&gt;A few times I have had the need to simulate the way tasksel
+installs packages during the normal debian-installer run.  Until now,
+I have ended up letting tasksel do the work, with the annoying problem
+of not getting any feedback at all when something fails (like a
+conffile question from dpkg or a download that fails), using code like
+this:
+
+&lt;blockquote&gt;&lt;pre&gt;
+export DEBIAN_FRONTEND=noninteractive
+tasksel --new-install
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+This would invoke tasksel, let its automatic task selection pick the
+tasks to install, and continue to install the requested tasks without
+any output what so ever.
+
+Recently I revisited this problem while working on the automatic
+package upgrade testing, because tasksel would some times hang without
+any useful feedback, and I want to see what is going on when it
+happen.  Then it occured to me, I can parse the output from tasksel
+when asked to run in test mode, and use that aptitude command line
+printed by tasksel then to simulate the tasksel run.  I ended up using
+code like this:
+
+&lt;blockquote&gt;&lt;pre&gt;
+export DEBIAN_FRONTEND=noninteractive
+cmd=&quot;$(in_target tasksel -t --new-install | sed &#39;s/debconf-apt-progress -- //&#39;)&quot;
+$cmd
+&lt;/pre&gt;&lt;/blockquote&gt;
+
+&lt;p&gt;The content of $cmd is typically something like &quot;&lt;tt&gt;aptitude -q
+--without-recommends -o APT::Install-Recommends=no -y install
+~t^desktop$ ~t^gnome-desktop$ ~t^laptop$ ~pstandard ~prequired
+~pimportant&lt;/tt&gt;&quot;, which will install the gnome desktop task, the
+laptop task and all packages with priority standard , required and
+important, just like tasksel would have done it during
+installation.&lt;/p&gt;
+
+&lt;p&gt;A better approach is probably to extend tasksel to be able to
+install packages without using debconf-apt-progress, for use cases
+like this.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Two projects that have improved the quality of free software a lot</title>
-               <link>Two_projects_that_have_improved_the_quality_of_free_software_a_lot.html</link>
-               <guid isPermaLink="true">Two_projects_that_have_improved_the_quality_of_free_software_a_lot.html</guid>
-                <pubDate>Sat, 2 May 2009 15:00:00 +0200</pubDate>
+               <title>Vinmonopolet bryter loven åpenlyst - og flere planlegger å gjøre det samme</title>
+               <link>http://people.skolelinux.org/pere/blog/Vinmonopolet_bryter_loven___penlyst___og_flere_planlegger____gj__re_det_samme.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Vinmonopolet_bryter_loven___penlyst___og_flere_planlegger____gj__re_det_samme.html</guid>
+                <pubDate>Wed, 16 Jun 2010 11:00:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;There are two software projects that have had huge influence on the
-quality of free software, and I wanted to mention both in case someone
-do not yet know them.&lt;/p&gt;
-
-&lt;p&gt;The first one is &lt;a href=&quot;http://valgrind.org/&quot;&gt;valgrind&lt;/a&gt;, a
-tool to detect and expose errors in the memory handling of programs.
-It is easy to use, all one need to do is to run &#39;valgrind program&#39;,
-and it will report any problems on stdout.  It is even better if the
-program include debug information.  With debug information, it is able
-to report the source file name and line number where the problem
-occurs.  It can report things like &#39;reading past memory block in file
-X line N, the memory block was allocated in file Y, line M&#39;, and
-&#39;using uninitialised value in control logic&#39;.  This tool has made it
-trivial to investigate reproducible crash bugs in programs, and have
-reduced the number of this kind of bugs in free software a lot.
-
-&lt;p&gt;The second one is
-&lt;a href=&quot;http://en.wikipedia.org/wiki/Coverity&quot;&gt;Coverity&lt;/a&gt; which is
-a source code checker.  It is able to process the source of a program
-and find problems in the logic without running the program.  It
-started out as the Stanford Checker and became well known when it was
-used to find bugs in the Linux kernel.  It is now a commercial tool
-and the company behind it is running
-&lt;a href=&quot;http://www.scan.coverity.com/&quot;&gt;a community service&lt;/a&gt; for the
-free software community, where a lot of free software projects get
-their source checked for free.  Several thousand defects have been
-found and fixed so far.  It can find errors like &#39;lock L taken in file
-X line N is never released if exiting in line M&#39;, or &#39;the code in file
-Y lines O to P can never be executed&#39;.  The projects included in the
-community service project have managed to get rid of a lot of
-reliability problems thanks to Coverity.&lt;/p&gt;
-
-&lt;p&gt;I believe tools like this, that are able to automatically find
-errors in the source, are vital to improve the quality of software and
-make sure we can get rid of the crashing and failing software we are
-surrounded by today.&lt;/p&gt;
+&lt;p&gt;&lt;a href=&quot;http://www.dagbladet.no/2010/06/16/nyheter/innenriks/streik/arbeidsliv/12157858/&quot;&gt;Dagbladet
+melder&lt;/a&gt; at Vinmonopolet med bakgrunn i vekterstreiken som pågår i
+Norge for tiden, har bestemt seg for med vitende og vilje å bryte
+sentralbanklovens paragraf 14 ved å nekte folk å betale med
+kontanter, og at flere butikker planlegger å følge deres eksempel.
+Jeg synes det er hårreisende hvis de slipper unna med et slikt
+soleklart lovbrudd, og lurer på hva slags muligheter jeg vil ha hvis
+jeg blir nektet å handle med kontanter.  Jeg handler i hovedsak med
+kontanter selv, da jeg anser det som en borgerrett å kunne handle
+anonymt uten at det blir registrert.  For meg er det et angrep på mitt
+personvern å nekte å ta imot kontant betaling.&lt;/p&gt;
+
+&lt;p&gt;&lt;a href=&quot;http://www.lovdata.no/all/tl-19850524-028-003.html#14&quot;&gt;Paragrafen
+i sentralbankloven&lt;/a&gt; lyder:&lt;/p&gt;
+
+&lt;blockquote&gt;
+&lt;p&gt;§ 14. Tvungent betalingsmiddel&lt;/p&gt;
+
+&lt;p&gt;Bankens sedler og mynter er tvungent betalingsmiddel i Norge. Ingen
+er pliktig til i én betaling å ta imot mer enn femogtyve mynter av
+hver enhet.&lt;/p&gt;
+
+&lt;p&gt;Sterkt skadde sedler og mynter er ikke tvungent
+betalingsmiddel. Banken gir nærmere forskrifter om erstatning for
+bortkomne, brente eller skadde sedler og mynter.&lt;/p&gt;
+
+&lt;p&gt;Selv om en avtale inneholder klausul om betaling av en
+pengeforpliktelse i gullverdi, kan skyldneren frigjøre seg med tvungne
+betalingsmidler uten hensyn til denne klausul.&lt;/p&gt;
+&lt;/blockquote&gt;
+
+&lt;p&gt;Det er med bakgrunn i denne lovet ikke tillatt å nekte å ta imot
+kontakt betaling.  Det er en lov jeg har sans for, og som jeg mener må
+håndheves strengt.&lt;/p&gt;

 </description>
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 </description>
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        <item>

-               <title>No patch is not better than a useless patch</title>
-               <link>No_patch_is_not_better_than_a_useless_patch.html</link>
-               <guid isPermaLink="true">No_patch_is_not_better_than_a_useless_patch.html</guid>
-                <pubDate>Tue, 28 Apr 2009 09:30:00 +0200</pubDate>
+               <title>Officeshots taking shape</title>
+               <link>http://people.skolelinux.org/pere/blog/Officeshots_taking_shape.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Officeshots_taking_shape.html</guid>
+                <pubDate>Sun, 13 Jun 2010 11:40:00 +0200</pubDate>

                <description>
                <description>

-&lt;p&gt;Julien Blache
-&lt;a href=&quot;http://blog.technologeek.org/2009/04/12/214&quot;&gt;claim that no
-patch is better than a useless patch&lt;/a&gt;.  I completely disagree, as a
-patch allow one to discuss a concrete and proposed solution, and also
-prove that the issue at hand is important enough for someone to spent
-time on fixing it.  No patch do not provide any of these positive
-properties.&lt;/p&gt;
+&lt;p&gt;For those of us caring about document exchange and
+interoperability, &lt;a href=&quot;http://www.officeshots.org/&quot;&gt;OfficeShots&lt;/a&gt;
+is a great service.  It is to ODF documents what
+&lt;a href=&quot;http://browsershots.org/&quot;&gt;BrowserShots&lt;/a&gt; is for web
+pages.&lt;/p&gt;
+
+&lt;p&gt;A while back, I was contacted by Knut Yrvin at the part of Nokia
+that used to be Trolltech, who wanted to help the OfficeShots project
+and wondered if the University of Oslo where I work would be
+interested in supporting the project.  I helped him to navigate his
+request to the right people at work, and his request was answered with
+a spot in the machine room with power and network connected, and Knut
+arranged funding for a machine to fill the spot.  The machine is
+administrated by the OfficeShots people, so I do not have daily
+contact with its progress, and thus from time to time check back to
+see how the project is doing.&lt;/p&gt;
+
+&lt;p&gt;Today I had a look, and was happy to see that the Dell box in our
+machine room now is the host for several virtual machines running as
+OfficeShots factories, and the project is able to render ODF documents
+in 17 different document processing implementation on Linux and
+Windows.  This is great.&lt;/p&gt;

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