Update drafts.

[homepage.git] / blog / index.rss

diff --git a/blog/index.rss b/blog/index.rss
index b13e4828d2c728b4cc708fe99cd155b1d21eae42..961899c3d63e00993d5b54f9a563818c568c3fed 100644 (file)
--- a/blog/index.rss
+++ b/blog/index.rss
@@ -6,6 +6,105 @@
                 <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" />
        
                 <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>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>
+&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;
+</description>
+       </item>
+       
+       <item>
+               <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>
+&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;
+</description>
+       </item>
+       

        <item>
                <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>
        <item>
                <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>


@@ -22,7 +121,7 @@ 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
 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
+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
 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


@@ -557,211 +656,5 @@ Windows.  This is great.&lt;/p&gt;
 </description>
        </item>
        
 </description>
        </item>
        

-       <item>
-               <title>Lenny-&gt;Squeeze upgrades, removals by apt and aptitude</title>
-               <link>http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades__removals_by_apt_and_aptitude.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades__removals_by_apt_and_aptitude.html</guid>
-                <pubDate>Sun, 13 Jun 2010 09:05:00 +0200</pubDate>
-               <description>
-&lt;p&gt;My
-&lt;a href=&quot;http://people.skolelinux.org/pere/blog/Automatic_upgrade_testing_from_Lenny_to_Squeeze.html&quot;&gt;testing
-of Debian upgrades&lt;/a&gt; from Lenny to Squeeze continues, and I&#39;ve
-finally made the upgrade logs available from
-&lt;a href=&quot;http://people.skolelinux.org/pere/debian-upgrade-testing/&quot;&gt;http://people.skolelinux.org/pere/debian-upgrade-testing/&lt;/a&gt;.
-I am now testing dist-upgrade of Gnome and KDE in a chroot using both
-apt and aptitude, and found their differences interesting.  This time
-I will only focus on their removal plans.&lt;/p&gt;
-
-&lt;p&gt;After installing a Gnome desktop and the laptop task, apt-get wants
-to remove 72 packages when dist-upgrading from Lenny to Squeeze.  The
-surprising part is that it want to remove xorg and all
-xserver-xorg-video* drivers.  Clearly not a good choice, but I am not
-sure why.  When asking aptitude to do the same, it want to remove 129
-packages, but most of them are library packages I suspect are no
-longer needed.  Both of them want to remove bluetooth packages, which
-I do not know.  Perhaps these bluetooth packages are obsolete?&lt;/p&gt;
-
-&lt;p&gt;For KDE, apt-get want to remove 82 packages, among them kdebase
-which seem like a bad idea and xorg the same way as with Gnome. Asking
-aptitude for the same, it wants to remove 192 packages, none which are
-too surprising.&lt;/p&gt;
-
-&lt;p&gt;I guess the removal of xorg during upgrades should be investigated
-and avoided, and perhaps others as well.  Here are the complete list
-of planned removals.  The complete logs is available from the URL
-above.  Note if you want to repeat these tests, that the upgrade test
-for kde+apt-get hung in the tasksel setup because of dpkg asking
-conffile questions.  No idea why.  I worked around it by using
-&#39;&lt;tt&gt;echo &gt;&gt; /proc/&lt;em&gt;pidofdpkg&lt;/em&gt;/fd/0&lt;/tt&gt;&#39; to tell dpkg to
-continue.&lt;/p&gt;
-
-&lt;p&gt;&lt;b&gt;apt-get gnome 72&lt;/b&gt;
-&lt;br&gt;bluez-gnome cupsddk-drivers deskbar-applet gnome
-  gnome-desktop-environment gnome-network-admin gtkhtml3.14
-  iceweasel-gnome-support libavcodec51 libdatrie0 libgdl-1-0
-  libgnomekbd2 libgnomekbdui2 libmetacity0 libslab0 libxcb-xlib0
-  nautilus-cd-burner python-gnome2-desktop python-gnome2-extras
-  serpentine swfdec-mozilla update-manager xorg xserver-xorg
-  xserver-xorg-core xserver-xorg-input-all xserver-xorg-input-evdev
-  xserver-xorg-input-kbd xserver-xorg-input-mouse
-  xserver-xorg-input-synaptics xserver-xorg-input-wacom
-  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-cyrix
-  xserver-xorg-video-dummy xserver-xorg-video-fbdev
-  xserver-xorg-video-glint xserver-xorg-video-i128
-  xserver-xorg-video-i740 xserver-xorg-video-imstt
-  xserver-xorg-video-intel xserver-xorg-video-mach64
-  xserver-xorg-video-mga xserver-xorg-video-neomagic
-  xserver-xorg-video-nsc xserver-xorg-video-nv
-  xserver-xorg-video-openchrome 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-v4l
-  xserver-xorg-video-vesa xserver-xorg-video-vga
-  xserver-xorg-video-vmware xserver-xorg-video-voodoo xulrunner-1.9
-  xulrunner-1.9-gnome-support&lt;/p&gt;
-
-&lt;p&gt;&lt;b&gt;aptitude gnome 129&lt;/b&gt;
-
-&lt;br&gt;bluez-gnome bluez-utils cpp-4.3 cupsddk-drivers dhcdbd
-  djvulibre-desktop finger gnome-app-install gnome-mount
-  gnome-network-admin gnome-spell gnome-vfs-obexftp
-  gnome-volume-manager gstreamer0.10-gnomevfs gtkhtml3.14 libao2
-  libavahi-compat-libdnssd1 libavahi-core5 libavcodec51 libbluetooth2
-  libcamel1.2-11 libcdio7 libcucul0 libcupsys2 libcurl3 libdatrie0
-  libdirectfb-1.0-0 libdvdread3 libedataserver1.2-9 libeel2-2.20
-  libeel2-data libepc-1.0-1 libepc-ui-1.0-1 libfaad0 libgail-common
-  libgd2-noxpm libgda3-3 libgda3-common libgdl-1-0 libgdl-1-common
-  libggz2 libggzcore9 libggzmod4 libgksu1.2-0 libgksuui1.0-1 libgmyth0
-  libgnomecups1.0-1 libgnomekbd2 libgnomekbdui2 libgnomeprint2.2-0
-  libgnomeprint2.2-data libgnomeprintui2.2-0 libgnomeprintui2.2-common
-  libgnomevfs2-bin libgpod3 libgraphviz4 libgtkhtml2-0
-  libgtksourceview-common libgtksourceview1.0-0 libgucharmap6
-  libhesiod0 libicu38 libiw29 libkpathsea4 libltdl3 libmagick++10
-  libmagick10 libmalaga7 libmetacity0 libmtp7 libmysqlclient15off
-  libnautilus-burn4 libneon27 libnm-glib0 libnm-util0 libopal-2.2
-  libosp5 libparted1.8-10 libpoppler-glib3 libpoppler3 libpt-1.10.10
-  libpt-1.10.10-plugins-alsa libpt-1.10.10-plugins-v4l libraw1394-8
-  libsensors3 libslab0 libsmbios2 libsoup2.2-8 libssh2-1
-  libsuitesparse-3.1.0 libswfdec-0.6-90 libtalloc1 libtotem-plparser10
-  libtrackerclient0 libxalan2-java libxalan2-java-gcj libxcb-xlib0
-  libxerces2-java libxerces2-java-gcj libxklavier12 libxtrap6
-  libxxf86misc1 libzephyr3 mysql-common nautilus-cd-burner
-  openoffice.org-writer2latex openssl-blacklist p7zip
-  python-4suite-xml python-eggtrayicon python-gnome2-desktop
-  python-gnome2-extras python-gtkhtml2 python-gtkmozembed
-  python-numeric python-sexy serpentine svgalibg1 swfdec-gnome
-  swfdec-mozilla totem-gstreamer update-manager wodim
-  xserver-xorg-video-cyrix xserver-xorg-video-imstt
-  xserver-xorg-video-nsc xserver-xorg-video-v4l xserver-xorg-video-vga
-  zip&lt;/p&gt;
-
-&lt;p&gt;&lt;b&gt;apt-get kde 82&lt;/b&gt;
-
-&lt;br&gt;cupsddk-drivers karm kaudiocreator kcoloredit kcontrol kde kde-core
-  kdeaddons kdeartwork kdebase kdebase-bin kdebase-bin-kde3
-  kdebase-kio-plugins kdesktop kdeutils khelpcenter kicker
-  kicker-applets knewsticker kolourpaint konq-plugins konqueror korn
-  kpersonalizer kscreensaver ksplash libavcodec51 libdatrie0 libkiten1
-  libxcb-xlib0 quanta superkaramba texlive-base-bin xorg xserver-xorg
-  xserver-xorg-core xserver-xorg-input-all xserver-xorg-input-evdev
-  xserver-xorg-input-kbd xserver-xorg-input-mouse
-  xserver-xorg-input-synaptics xserver-xorg-input-wacom
-  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-cyrix
-  xserver-xorg-video-dummy xserver-xorg-video-fbdev
-  xserver-xorg-video-glint xserver-xorg-video-i128
-  xserver-xorg-video-i740 xserver-xorg-video-imstt
-  xserver-xorg-video-intel xserver-xorg-video-mach64
-  xserver-xorg-video-mga xserver-xorg-video-neomagic
-  xserver-xorg-video-nsc xserver-xorg-video-nv
-  xserver-xorg-video-openchrome 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-v4l
-  xserver-xorg-video-vesa xserver-xorg-video-vga
-  xserver-xorg-video-vmware xserver-xorg-video-voodoo xulrunner-1.9&lt;/p&gt;
-
-&lt;p&gt;&lt;b&gt;aptitude kde 192&lt;/b&gt;
-&lt;br&gt;bluez-utils cpp-4.3 cupsddk-drivers cvs dcoprss dhcdbd
-  djvulibre-desktop dosfstools eyesapplet fifteenapplet finger gettext
-  ghostscript-x imlib-base imlib11 indi kandy karm kasteroids
-  kaudiocreator kbackgammon kbstate kcoloredit kcontrol kcron kdat
-  kdeadmin-kfile-plugins kdeartwork-misc kdeartwork-theme-window
-  kdebase-bin-kde3 kdebase-kio-plugins kdeedu-data
-  kdegraphics-kfile-plugins kdelirc kdemultimedia-kappfinder-data
-  kdemultimedia-kfile-plugins kdenetwork-kfile-plugins
-  kdepim-kfile-plugins kdepim-kio-plugins kdeprint kdesktop kdessh
-  kdict kdnssd kdvi kedit keduca kenolaba kfax kfaxview kfouleggs
-  kghostview khelpcenter khexedit kiconedit kitchensync klatin
-  klickety kmailcvt kmenuedit kmid kmilo kmoon kmrml kodo kolourpaint
-  kooka korn kpager kpdf kpercentage kpf kpilot kpoker kpovmodeler
-  krec kregexpeditor ksayit ksim ksirc ksirtet ksmiletris ksmserver
-  ksnake ksokoban ksplash ksvg ksysv ktip ktnef kuickshow kverbos
-  kview kviewshell kvoctrain kwifimanager kwin kwin4 kworldclock
-  kxsldbg libakode2 libao2 libarts1-akode libarts1-audiofile
-  libarts1-mpeglib libarts1-xine libavahi-compat-libdnssd1
-  libavahi-core5 libavc1394-0 libavcodec51 libbluetooth2
-  libboost-python1.34.1 libcucul0 libcurl3 libcvsservice0 libdatrie0
-  libdirectfb-1.0-0 libdjvulibre21 libdvdread3 libfaad0 libfreebob0
-  libgail-common libgd2-noxpm libgraphviz4 libgsmme1c2a libgtkhtml2-0
-  libicu38 libiec61883-0 libindex0 libiw29 libk3b3 libkcal2b libkcddb1
-  libkdeedu3 libkdepim1a libkgantt0 libkiten1 libkleopatra1 libkmime2
-  libkpathsea4 libkpimexchange1 libkpimidentities1 libkscan1
-  libksieve0 libktnef1 liblockdev1 libltdl3 libmagick10 libmimelib1c2a
-  libmozjs1d libmpcdec3 libneon27 libnm-util0 libopensync0 libpisock9
-  libpoppler-glib3 libpoppler-qt2 libpoppler3 libraw1394-8 libsmbios2
-  libssh2-1 libsuitesparse-3.1.0 libtalloc1 libtiff-tools
-  libxalan2-java libxalan2-java-gcj libxcb-xlib0 libxerces2-java
-  libxerces2-java-gcj libxtrap6 mpeglib networkstatus
-  openoffice.org-writer2latex pmount poster psutils quanta quanta-data
-  superkaramba svgalibg1 tex-common texlive-base texlive-base-bin
-  texlive-common texlive-doc-base texlive-fonts-recommended
-  xserver-xorg-video-cyrix xserver-xorg-video-imstt
-  xserver-xorg-video-nsc xserver-xorg-video-v4l xserver-xorg-video-vga
-  xulrunner-1.9&lt;/p&gt;
-
-</description>
-       </item>
-       
-       <item>
-               <title>Åpne trådløsnett er et samfunnsgode</title>
-               <link>http://people.skolelinux.org/pere/blog/__pne_tr__dl__snett_er_et_samfunnsgode.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/__pne_tr__dl__snett_er_et_samfunnsgode.html</guid>
-                <pubDate>Sat, 12 Jun 2010 12:45:00 +0200</pubDate>
-               <description>
-&lt;p&gt;Veldig glad for å oppdage via
-&lt;a href=&quot;http://yro.slashdot.org/story/10/06/11/1841256/Finland-To-Legalize-Use-of-Unsecured-Wi-Fi&quot;&gt;Slashdot&lt;/a&gt;
-at folk i Finland har forstått at åpne trådløsnett er et samfunnsgode.
-Jeg ser på åpne trådløsnett som et fellesgode på linje med retten til
-ferdsel i utmark og retten til å bevege seg i strandsonen.  Jeg har
-glede av åpne trådløsnett når jeg finner dem, og deler gladelig nett
-med andre så lenge de ikke forstyrrer min bruk av eget nett.
-Nettkapasiteten er sjelden en begrensning ved normal browsing og enkel
-SSH-innlogging (som er min vanligste nettbruk), og nett kan brukes til
-så mye positivt og nyttig (som nyhetslesing, sjekke været, kontakte
-slekt og venner, holde seg oppdatert om politiske saker, kontakte
-organisasjoner og politikere, etc), at det for meg er helt urimelig å
-blokkere dette for alle som ikke gjør en flue fortred.  De som mener
-at potensialet for misbruk er grunn nok til å hindre all den positive
-og lovlydige bruken av et åpent trådløsnett har jeg dermed ingen
-forståelse for.  En kan ikke eksistensen av forbrytere styre hvordan
-samfunnet skal organiseres.  Da får en et kontrollsamfunn de færreste
-ønsker å leve i, og det at vi har et samfunn i Norge der tilliten til
-hverandre er høy gjør at samfunnet fungerer ganske godt.  Det bør vi
-anstrenge oss for å beholde.&lt;/p&gt;
-</description>
-       </item>
-       

         </channel>
 </rss>
         </channel>
 </rss>