+ <div class="entry">
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Techno_TV_broadcasting_live_across_Norway_and_the_Internet___debconf16___nuug__on__frikanalen.html">Techno TV broadcasting live across Norway and the Internet (#debconf16, #nuug) on @frikanalen</a></div>
+ <div class="date"> 1st August 2016</div>
+ <div class="body"><p>Did you know there is a TV channel broadcasting talks from DebConf
+16 across an entire country? Or that there is a TV channel
+broadcasting talks by or about
+<a href="http://beta.frikanalen.no/video/625529/">Linus Torvalds</a>,
+<a href="http://beta.frikanalen.no/video/625599/">Tor</a>,
+<a href="http://beta.frikanalen.no/video/624019/">OpenID</A>,
+<a href="http://beta.frikanalen.no/video/625624/">Common Lisp</a>,
+<a href="http://beta.frikanalen.no/video/625446/">Civic Tech</a>,
+<a href="http://beta.frikanalen.no/video/625090/">EFF founder John Barlow</a>,
+<a href="http://beta.frikanalen.no/video/625432/">how to make 3D
+printer electronics</a> and many more fascinating topics? It works
+using only free software (all of it
+<a href="http://github.com/Frikanalen">available from Github</a>), and
+is administrated using a web browser and a web API.</p>
+
+<p>The TV channel is the Norwegian open channel
+<a href="http://www.frikanalen.no/">Frikanalen</a>, and I am involved
+via <a href="https://www.nuug.no/">the NUUG member association</a> in
+running and developing the software for the channel. The channel is
+organised as a member organisation where its members can upload and
+broadcast what they want (think of it as Youtube for national
+broadcasting television). Individuals can broadcast too. The time
+slots are handled on a first come, first serve basis. Because the
+channel have almost no viewers and very few active members, we can
+experiment with TV technology without too much flack when we make
+mistakes. And thanks to the few active members, most of the slots on
+the schedule are free. I see this as an opportunity to spread
+knowledge about technology and free software, and have a script I run
+regularly to fill up all the open slots the next few days with
+technology related video. The end result is a channel I like to
+describe as Techno TV - filled with interesting talks and
+presentations.</p>
+
+<p>It is available on channel 50 on the Norwegian national digital TV
+network (RiksTV). It is also available as a multicast stream on
+Uninett. And finally, it is available as
+<a href="http://beta.frikanalen.no/">a WebM unicast stream</a> from
+Frikanalen and NUUG. Check it out. :)</p>
+</div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/Unlocking_HTC_Desire_HD_on_Linux_using_unruu_and_fastboot.html">Unlocking HTC Desire HD on Linux using unruu and fastboot</a></div>
+ <div class="date"> 7th July 2016</div>
+ <div class="body"><p>Yesterday, I tried to unlock a HTC Desire HD phone, and it proved
+to be a slight challenge. Here is the recipe if I ever need to do it
+again. It all started by me wanting to try the recipe to set up
+<a href="https://blog.torproject.org/blog/mission-impossible-hardening-android-security-and-privacy">an
+hardened Android installation</a> from the Tor project blog on a
+device I had access to. It is a old mobile phone with a broken
+microphone The initial idea had been to just
+<a href="http://wiki.cyanogenmod.org/w/Install_CM_for_ace">install
+CyanogenMod on it</a>, but did not quite find time to start on it
+until a few days ago.</p>
+
+<p>The unlock process is supposed to be simple: (1) Boot into the boot
+loader (press volume down and power at the same time), (2) select
+'fastboot' before (3) connecting the device via USB to a Linux
+machine, (4) request the device identifier token by running 'fastboot
+oem get_identifier_token', (5) request the device unlocking key using
+the <a href="http://www.htcdev.com/bootloader/">HTC developer web
+site</a> and unlock the phone using the key file emailed to you.</p>
+
+<p>Unfortunately, this only work fi you have hboot version 2.00.0029
+or newer, and the device I was working on had 2.00.0027. This
+apparently can be easily fixed by downloading a Windows program and
+running it on your Windows machine, if you accept the terms Microsoft
+require you to accept to use Windows - which I do not. So I had to
+come up with a different approach. I got a lot of help from AndyCap
+on #nuug, and would not have been able to get this working without
+him.</p>
+
+<p>First I needed to extract the hboot firmware from
+<a href="http://www.htcdev.com/ruu/PD9810000_Ace_Sense30_S_hboot_2.00.0029.exe">the
+windows binary for HTC Desire HD</a> downloaded as 'the RUU' from HTC.
+For this there is is <a href="https://github.com/kmdm/unruu/">a github
+project named unruu</a> using libunshield. The unshield tool did not
+recognise the file format, but unruu worked and extracted rom.zip,
+containing the new hboot firmware and a text file describing which
+devices it would work for.</p>
+
+<p>Next, I needed to get the new firmware into the device. For this I
+followed some instructions
+<a href="http://www.htc1guru.com/2013/09/new-ruu-zips-posted/">available
+from HTC1Guru.com</a>, and ran these commands as root on a Linux
+machine with Debian testing:</p>
+
+<p><pre>
+adb reboot-bootloader
+fastboot oem rebootRUU
+fastboot flash zip rom.zip
+fastboot flash zip rom.zip
+fastboot reboot
+</pre></p>
+
+<p>The flash command apparently need to be done twice to take effect,
+as the first is just preparations and the second one do the flashing.
+The adb command is just to get to the boot loader menu, so turning the
+device on while holding volume down and the power button should work
+too.</p>
+
+<p>With the new hboot version in place I could start following the
+instructions on the HTC developer web site. I got the device token
+like this:</p>
+
+<p><pre>
+fastboot oem get_identifier_token 2>&1 | sed 's/(bootloader) //'
+</pre>
+
+<p>And once I got the unlock code via email, I could use it like
+this:</p>
+
+<p><pre>
+fastboot flash unlocktoken Unlock_code.bin
+</pre></p>
+
+<p>And with that final step in place, the phone was unlocked and I
+could start stuffing the software of my own choosing into the device.
+So far I only inserted a replacement recovery image to wipe the phone
+before I start. We will see what happen next. Perhaps I should
+install <a href="https://www.debian.org/">Debian</a> on it. :)</p>
+</div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/How_to_use_the_Signal_app_if_you_only_have_a_land_line__ie_no_mobile_phone_.html">How to use the Signal app if you only have a land line (ie no mobile phone)</a></div>
+ <div class="date"> 3rd July 2016</div>
+ <div class="body"><p>For a while now, I have wanted to test
+<a href="https://whispersystems.org/">the Signal app</a>, as it is
+said to provide end to end encrypted communication and several of my
+friends and family are already using it. As I by choice do not own a
+mobile phone, this proved to be harder than expected. And I wanted to
+have the source of the client and know that it was the code used on my
+machine. But yesterday I managed to get it working. I used the
+Github source, compared it to the source in
+<a href="https://chrome.google.com/webstore/detail/signal-private-messenger/bikioccmkafdpakkkcpdbppfkghcmihk?hl=en-US">the
+Signal Chrome app</a> available from the Chrome web store, applied
+patches to use the production Signal servers, started the app and
+asked for the hidden "register without a smart phone" form. Here is
+the recipe how I did it.</p>
+
+<p>First, I fetched the Signal desktop source from Github, using
+
+<pre>
+git clone https://github.com/WhisperSystems/Signal-Desktop.git
+</pre>
+
+<p>Next, I patched the source to use the production servers, to be
+able to talk to other Signal users:</p>
+
+<pre>
+cat <<EOF | patch -p0
+diff -ur ./js/background.js userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/background.js
+--- ./js/background.js 2016-06-29 13:43:15.630344628 +0200
++++ userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/background.js 2016-06-29 14:06:29.530300934 +0200
+@@ -47,8 +47,8 @@
+ });
+ });
+
+- var SERVER_URL = 'https://textsecure-service-staging.whispersystems.org';
+- var ATTACHMENT_SERVER_URL = 'https://whispersystems-textsecure-attachments-staging.s3.amazonaws.com';
++ var SERVER_URL = 'https://textsecure-service-ca.whispersystems.org:4433';
++ var ATTACHMENT_SERVER_URL = 'https://whispersystems-textsecure-attachments.s3.amazonaws.com';
+ var messageReceiver;
+ window.getSocketStatus = function() {
+ if (messageReceiver) {
+diff -ur ./js/expire.js userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/expire.js
+--- ./js/expire.js 2016-06-29 13:43:15.630344628 +0200
++++ userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/expire.js2016-06-29 14:06:29.530300934 +0200
+@@ -1,6 +1,6 @@
+ ;(function() {
+ 'use strict';
+- var BUILD_EXPIRATION = 0;
++ var BUILD_EXPIRATION = 1474492690000;
+
+ window.extension = window.extension || {};
+
+EOF
+</pre>
+
+<p>The first part is changing the servers, and the second is updating
+an expiration timestamp. This timestamp need to be updated regularly.
+It is set 90 days in the future by the build process (Gruntfile.js).
+The value is seconds since 1970 times 1000, as far as I can tell.</p>
+
+<p>Based on a tip and good help from the #nuug IRC channel, I wrote a
+script to launch Signal in Chromium.</p>
+
+<pre>
+#!/bin/sh
+cd $(dirname $0)
+mkdir -p userdata
+exec chromium \
+ --proxy-server="socks://localhost:9050" \
+ --user-data-dir=`pwd`/userdata --load-and-launch-app=`pwd`
+</pre>
+
+<p> The script start the app and configure Chromium to use the Tor
+SOCKS5 proxy to make sure those controlling the Signal servers (today
+Amazon and Whisper Systems) as well as those listening on the lines
+will have a harder time location my laptop based on the Signal
+connections if they use source IP address.</p>
+
+<p>When the script starts, one need to follow the instructions under
+"Standalone Registration" in the CONTRIBUTING.md file in the git
+repository. I right clicked on the Signal window to get up the
+Chromium debugging tool, visited the 'Console' tab and wrote
+'extension.install("standalone")' on the console prompt to get the
+registration form. Then I entered by land line phone number and
+pressed 'Call'. 5 seconds later the phone rang and a robot voice
+repeated the verification code three times. After entering the number
+into the verification code field in the form, I could start using
+Signal from my laptop.
+
+<p>As far as I can tell, The Signal app will leak who is talking to
+whom and thus who know who to those controlling the central server,
+but such leakage is hard to avoid with a centrally controlled server
+setup. It is something to keep in mind when using Signal - the
+content of your chats are harder to intercept, but the meta data
+exposing your contact network is available to people you do not know.
+So better than many options, but not great. And sadly the usage is
+connected to my land line, thus allowing those controlling the server
+to associate it to my home and person. I would prefer it if only
+those I knew could tell who I was on Signal. There are options
+avoiding such information leakage, but most of my friends are not
+using them, so I am stuck with Signal for now.</p>
+</div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
<div class="entry">
<div class="title"><a href="http://people.skolelinux.org/pere/blog/The_new__best__multimedia_player_in_Debian_.html">The new "best" multimedia player in Debian?</a></div>
<div class="date"> 6th June 2016</div>
</div>
<div class="padding"></div>
- <div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Debian_now_with_ZFS_on_Linux_included.html">Debian now with ZFS on Linux included</a></div>
- <div class="date">12th May 2016</div>
- <div class="body"><p>Today, after many years of hard work from many people,
-<a href="http://zfsonlinux.org/">ZFS for Linux</a> finally entered
-Debian. The package status can be seen on
-<a href="https://tracker.debian.org/pkg/zfs-linux">the package tracker
-for zfs-linux</a>. and
-<a href="https://qa.debian.org/developer.php?login=pkg-zfsonlinux-devel@lists.alioth.debian.org">the
-team status page</a>. If you want to help out, please join us.
-<a href="http://anonscm.debian.org/gitweb/?p=pkg-zfsonlinux/zfs.git">The
-source code</a> is available via git on Alioth. It would also be
-great if you could help out with
-<a href="https://tracker.debian.org/pkg/dkms">the dkms package</a>, as
-it is an important piece of the puzzle to get ZFS working.</p>
-</div>
- <div class="tags">
-
-
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
-
-
- </div>
- </div>
- <div class="padding"></div>
-
- <div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/What_is_the_best_multimedia_player_in_Debian_.html">What is the best multimedia player in Debian?</a></div>
- <div class="date"> 8th May 2016</div>
- <div class="body"><p><strong>Where I set out to figure out which multimedia player in
-Debian claim support for most file formats.</strong></p>
-
-<p>A few years ago, I had a look at the media support for Browser
-plugins in Debian, to get an idea which plugins to include in Debian
-Edu. I created a script to extract the set of supported MIME types
-for each plugin, and used this to find out which multimedia browser
-plugin supported most file formats / media types.
-<a href="https://wiki.debian.org/DebianEdu/BrowserMultimedia">The
-result</a> can still be seen on the Debian wiki, even though it have
-not been updated for a while. But browser plugins are less relevant
-these days, so I thought it was time to look at standalone
-players.</p>
-
-<p>A few days ago I was tired of VLC not being listed as a viable
-player when I wanted to play videos from the Norwegian National
-Broadcasting Company, and decided to investigate why. The cause is a
-<a href="https://bugs.debian.org/822245">missing MIME type in the VLC
-desktop file</a>. In the process I wrote a script to compare the set
-of MIME types announced in the desktop file and the browser plugin,
-only to discover that there is quite a large difference between the
-two for VLC. This discovery made me dig up the script I used to
-compare browser plugins, and adjust it to compare desktop files
-instead, to try to figure out which multimedia player in Debian
-support most file formats.</p>
-
-<p>The result can be seen on the Debian Wiki, as
-<a href="https://wiki.debian.org/DebianMultimedia/PlayerSupport">a
-table listing all MIME types supported by one of the packages included
-in the table</a>, with the package supporting most MIME types being
-listed first in the table.</p>
-
-</p>The best multimedia player in Debian? It is totem, followed by
-parole, kplayer, mpv, vlc, smplayer mplayer-gui gnome-mpv and
-kmplayer. Time for the other players to update their announced MIME
-support?</p>
-</div>
- <div class="tags">
-
-
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
-
-
- </div>
- </div>
- <div class="padding"></div>
-
- <div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/The_Pyra___handheld_computer_with_Debian_preinstalled.html">The Pyra - handheld computer with Debian preinstalled</a></div>
- <div class="date"> 4th May 2016</div>
- <div class="body">A friend of mine made me aware of
-<a href="https://pyra-handheld.com/boards/pages/pyra/">The Pyra</a>, a
-handheld computer which will be delivered with Debian preinstalled. I
-would love to get one of those for my birthday. :)</p>
-
-<p>The machine is a complete ARM-based PC with micro HDMI, SATA, USB
-plugs and many others connectors, and include a full keyboard and a 5"
-LCD touch screen. The 6000mAh battery is claimed to provide a whole
-day of battery life time, but I have not seen any independent tests
-confirming this. The vendor is still collecting preorders, and the
-last I heard last night was that 22 more orders were needed before
-production started.</p>
-
-<p>As far as I know, this is the first handheld preinstalled with
-Debian. Please let me know if you know of any others. Is it the
-first computer being sold with Debian preinstalled?</p>
-</div>
- <div class="tags">
-
-
- Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
-
-
- </div>
- </div>
- <div class="padding"></div>
-
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