- <title>Student group continue the work on my Reprap 3D printer</title>
- <link>http://people.skolelinux.org/pere/blog/Student_group_continue_the_work_on_my_Reprap_3D_printer.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Student_group_continue_the_work_on_my_Reprap_3D_printer.html</guid>
- <pubDate>Thu, 9 Dec 2010 19:30:00 +0100</pubDate>
- <description>
-<p>A few days ago, I was introduces to some students in the robot
-student assosiation <a href="http://www.robotica.no/">Robotica
-Osloensis</a> at the University of Oslo where I work, who planned to
-get their own 3D printer. They wanted to learn from me based on my
-work in the area. After having a short lunch meeting with them, I
-offered them to borrow my reprap kit, as I never had time to complete
-the build and this seem unlike to change any time soon. I look
-forward to see how this goes. This monday their volunteer driver
-picked up my kit and drove it to their lab, and tomorrow I am told the
-last exam is over so they can start work on getting the 3D printer
-operational.</p>
-
-<p>The robotic group have already build several robots on their own,
-and seem capable of getting the reprap operational. I really look
-forward to being able to print all the cool 3D designs published on
-<a href="http://www.thingiverse.com/">Thingiverse</a>. I even got
-some 3D scans I got made during Dagen@IFI when one of the groups at
-the computer science department at the university demonstrated their
-very cool 3D scanner.</p>
-</description>
- </item>
-
- <item>
- <title>Martin Bekkelund: En stille bønn om Datalagringsdirektivet</title>
- <link>http://people.skolelinux.org/pere/blog/Martin_Bekkelund__En_stille_b__nn_om_Datalagringsdirektivet.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Martin_Bekkelund__En_stille_b__nn_om_Datalagringsdirektivet.html</guid>
- <pubDate>Thu, 9 Dec 2010 21:25:00 +0100</pubDate>
- <description>
-<p><a href="http://www.bekkelund.net/">Martin Bekkelund</a> ved
-<a href="http://www.friprog.no/">friprog-senteret</a> har skrevet
-følgende
-<a href="http://www.bekkelund.net/2010/12/09/en-stille-bonn/">korte
-oppsummering</a> rundt datalagringsdirektivet, som jeg videreformidler
-her.</p>
-
-<p><blockquote><strong>Det pågår i disse dager en intens diskusjon om
-innføring av Datalagringsdirektivet (<acronym
-title="Datalagringsdirektivet">DLD</acronym>) i norsk rett. Kanskje
-har du gjort deg opp en mening, kanskje er du usikker. I begge
-tilfeller ber jeg deg lese videre.</strong></p>
-
-<p>Samtlige fagmiljøer, både i Norge og EU, har konkludert med at
-<acronym title="Datalagringsdirektivet">DLD</acronym> ikke bør
-innføres på nåværende tidspunkt. Den tekniske kvaliteten på direktivet
-er dårlig, det griper uforholdsmessig inn i personvernet, det har
-store mangler og viktige spørsmål som hvem som skal ha tilgang og
-hvordan data skal lagres er fortsatt uavklart.</p>
-
-<ul>
-<li><a href="http://ikt-norge.no/norge-kan-slippe-datalagringsdirektivet/">EU-ekspertene sier</a> at konsekvensene av å benytte vetoretten er minimale</li>
-<li><a href="http://www.regjeringen.no/pages/2281080/Deninternasjonalejuristkommisjon.pdf">Juristene påpeker</a> at direktivet er i strid med EMK</li>
-<li><a href="http://www.dagbladet.no/2010/12/06/kultur/debatt/kronikk/dld/personvern/14594699/">Datatilsynet sier</a> direktivet får store konsekvenser for personvernet og at direktivet er irreversibelt</li>
-<li><a href="http://www.bekkelund.net/?s=dld">Teknologene sier</a> at sikker lagring ikke er mulig, at det er svært enkelt å omgå og mulig å manipulere data og produsere falske beviser</li>
-<li><a href="http://www.regjeringen.no/pages/2281080/NJ_247460_1_P.pdf">Pressen sier</a> nei av hensyn til kildevernet</li>
-<li>Det er store <a href="http://tetzschner.blogspot.com/2010/03/den-tyske-forfatningsdomstol.html">interne</a> <a href="http://stoppdld.no/2010/03/02/datalagring-stoppet-av-tysk-forfatningsdomstol/">stridigheter</a> i EU. Blant annet har den tyske forfatningsdomstolen funnet at måten <acronym title="Datalagringsdirektivet">DLD</acronym> er innført på er i strid med tysk grunnlov</li>
-<li>Alle de store <a href="http://www.bekkelund.net/2010/12/08/lokasjonsdata-og-datalagringsdirektivet/">operatørene og tilbyderne sier nei</a>, av tekniske og personvernmessige årsaker</li>
-</ul>
-
-<p>Jeg liker å tro at jeg er en hyggelig fyr. Jeg har et rent
-rulleblad, og med unntak av to fartsbøter har jeg aldri vært en byrde
-for samfunnet. Det akter jeg å fortsette med. Det er mange som meg,
-lovlydige, pliktoppfyllende borgere som aldri vil utgjøre en trussel
-mot noe som helst. Vi synes derfor det er trist og sårende at all vår
-atferd skal overvåkes døgnkontinuerlig.</p>
-
-<p><strong>Understøttet av faglige vurderinger kan du trygt si nei til
-<acronym title="Datalagringsdirektivet">DLD</acronym>.</strong></p>
-
-<p><a href="http://www.bekkelund.net/kontakt/">Ta kontakt med meg</a>
-hvis du har spørsmål om <acronym
-title="Datalagringsdirektivet">DLD</acronym>, uansett hva det måtte
-gjelde.</p>
-
-<p class="info">Denne teksten er å anse som <a
-href="http://creativecommons.org/licenses/publicdomain/"><em>Public
-Domain</em></a>. Spre den videre til alle som kan ha nytte av
-den!</p>
-</blockquote></p>
-
-<p>Siste <a href="http://www.nettavisen.no/it/article3043918.ece">melding
-fra Nettavisen</a> er at regjeringen planlegger å fremme sitt forslag
-til implementering av datalagringsdirektivet i morgen, i ly av
-fredprisutdelingen for å få minst mulig pressedekning om saken. Vi
-får snart se om det stemmer.</p>
-</description>
- </item>
-
- <item>
- <title>Now accepting bitcoins - anonymous and distributed p2p crypto-money</title>
- <link>http://people.skolelinux.org/pere/blog/Now_accepting_bitcoins___anonymous_and_distributed_p2p_crypto_money.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Now_accepting_bitcoins___anonymous_and_distributed_p2p_crypto_money.html</guid>
- <pubDate>Fri, 10 Dec 2010 08:20:00 +0100</pubDate>
- <description>
-<p>With this weeks lawless
-<a href="http://www.salon.com/news/opinion/glenn_greenwald/2010/12/06/wikileaks/index.html">governmental
-attacks</a> on Wikileak and
-<a href="http://www.salon.com/technology/dan_gillmor/2010/12/06/war_on_speech">free
-speech</a>, it has become obvious that PayPal, visa and mastercard can
-not be trusted to handle money transactions.
-A blog post from
-<a href="http://webmink.com/2010/12/06/now-accepting-bitcoin/">Simon
-Phipps on bitcoin</a> reminded me about a project that a friend of
-mine mentioned earlier. I decided to follow Simon's example, and get
-involved with <a href="http://www.bitcoin.org/">BitCoin</a>. I got
-some help from my friend to get it all running, and he even handed me
-some bitcoins to get started. I even donated a few bitcoins to Simon
-for helping me remember BitCoin.</p>
-
-<p>So, what is bitcoins, you probably wonder? It is a digital
-crypto-currency, decentralised and handled using peer-to-peer
-networks. It allows anonymous transactions and prohibits central
-control over the transactions, making it impossible for governments
-and companies alike to block donations and other transactions. The
-source is free software, and while the key dependency wxWidgets 2.9
-for the graphical user interface is missing in Debian, the command
-line client builds just fine. Hopefully Jonas
-<a href="http://bugs.debian.org/578157">will get the package into
-Debian</a> soon.</p>
-
-<p>Bitcoins can be converted to other currencies, like USD and EUR.
-There are <a href="http://www.bitcoin.org/trade">companies accepting
-bitcoins</a> when selling services and goods, and there are even
-currency "stock" markets where the exchange rate is decided. There
-are not many users so far, but the concept seems promising. If you
-want to get started and lack a friend with any bitcoins to spare,
-you can even get
-<a href="https://freebitcoins.appspot.com/">some for free</a> (0.05
-bitcoin at the time of writing). Use
-<a href="http://www.bitcoinwatch.com/">BitcoinWatch</a> to keep an eye
-on the current exchange rates.</p>
-
-<p>As an experiment, I have decided to set up bitcoind on one of my
-machines. If you want to support my activity, please send Bitcoin
-donations to the address
-<b>15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</b>. Thank you!</p>
-</description>
- </item>
-
- <item>
- <title>Pornoskannerne på flyplassene bedrer visst ikke sikkerheten</title>
- <link>http://people.skolelinux.org/pere/blog/Pornoskannerne_p___flyplassene_bedrer_visst_ikke_sikkerheten.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Pornoskannerne_p___flyplassene_bedrer_visst_ikke_sikkerheten.html</guid>
- <pubDate>Sat, 11 Dec 2010 10:45:00 +0100</pubDate>
- <description>
-<p>Via <a href="http://webmink.com/2010/12/10/links-for-2010-12-10/">en
-blogpost fra Simon Phipps i går</a>, fant jeg en referanse til
-<a href="http://www.washingtontimes.com/news/2010/dec/9/exposed-tsas-x-rated-scanner-fraud/">en
-artikkel i Washington Times</a> som igjen refererer til en artikkel i
-det fagfellevurderte tidsskriftet Journal of Transportation Security
-med tittelen
-"<a href="http://springerlink.com/content/g6620thk08679160/fulltext.html">An
-evaluation of airport x-ray backscatter units based on image
-characteristics</a>" som enkelt konstaterer at
-<a href="http://www.dailysquib.co.uk/?a=2389&c=124">pornoscannerne</a>
-som kler av reisende på flyplasser ikke er i stand til å avsløre det
-produsenten og amerikanske myndigheter sier de skal avsløre. Kort
-sagt, de bedrer ikke sikkerheten. Reisende må altså la ansatte på
-flyplasser <a href="http://www.thousandsstandingaround.org/">se dem
-nakne eller la seg beføle i skrittet</a> uten grunn. Jeg vil
-fortsette å nekte å bruke disse pornoskannerne, unngå flyplasser der
-de er tatt i bruk, og reise med andre transportmidler enn fly hvis jeg
-kan.</p>
-</description>
- </item>
-
- <item>
- <title>Some thoughts on BitCoins</title>
- <link>http://people.skolelinux.org/pere/blog/Some_thoughts_on_BitCoins.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Some_thoughts_on_BitCoins.html</guid>
- <pubDate>Sat, 11 Dec 2010 15:10:00 +0100</pubDate>
- <description>
-<p>As I continue to explore
-<a href="http://www.bitcoin.org/">BitCoin</a>, I've starting to wonder
-what properties the system have, and how it will be affected by laws
-and regulations here in Norway. Here are some random notes.</p>
-
-<p>One interesting thing to note is that since the transactions are
-verified using a peer to peer network, all details about a transaction
-is known to everyone. This means that if a BitCoin address has been
-published like I did with mine in my initial post about BitCoin, it is
-possible for everyone to see how many BitCoins have been transfered to
-that address. There is even a web service to look at the details for
-all transactions. There I can see that my address
-<a href="http://blockexplorer.com/address/15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a>
-have received 16.06 Bitcoin, the
-<a href="http://blockexplorer.com/address/1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3">1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3</a>
-address of Simon Phipps have received 181.97 BitCoin and the address
-<a href="http://blockexplorer.com/address/1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt">1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt</A>
-of EFF have received 2447.38 BitCoins so far. Thank you to each and
-every one of you that donated bitcoins to support my activity. The
-fact that anyone can see how much money was transfered to a given
-address make it more obvious why the BitCoin community recommend to
-generate and hand out a new address for each transaction. I'm told
-there is no way to track which addresses belong to a given person or
-organisation without the person or organisation revealing it
-themselves, as Simon, EFF and I have done.</p>
-
-<p>In Norway, and in most other countries, there are laws and
-regulations limiting how much money one can transfer across the border
-without declaring it. There are money laundering, tax and accounting
-laws and regulations I would expect to apply to the use of BitCoin.
-If the Skolelinux foundation
-(<a href="http://linuxiskolen.no/slxdebianlabs/donations.html">SLX
-Debian Labs</a>) were to accept donations in BitCoin in addition to
-normal bank transfers like EFF is doing, how should this be accounted?
-Given that it is impossible to know if money can across the border or
-not, should everything or nothing be declared? What exchange rate
-should be used when calculating taxes? Would receivers have to pay
-income tax if the foundation were to pay Skolelinux contributors in
-BitCoin? I have no idea, but it would be interesting to know.</p>
-
-<p>For a currency to be useful and successful, it must be trusted and
-accepted by a lot of users. It must be possible to get easy access to
-the currency (as a wage or using currency exchanges), and it must be
-easy to spend it. At the moment BitCoin seem fairly easy to get
-access to, but there are very few places to spend it. I am not really
-a regular user of any of the vendor types currently accepting BitCoin,
-so I wonder when my kind of shop would start accepting BitCoins. I
-would like to buy electronics, travels and subway tickets, not herbs
-and books. :) The currency is young, and this will improve over time
-if it become popular, but I suspect regular banks will start to lobby
-to get BitCoin declared illegal if it become popular. I'm sure they
-will claim it is helping fund terrorism and money laundering (which
-probably would be true, as is any currency in existence), but I
-believe the problems should be solved elsewhere and not by blaming
-currencies.</p>
-
-<p>The process of creating new BitCoins is called mining, and it is
-CPU intensive process that depend on a bit of luck as well (as one is
-competing against all the other miners currently spending CPU cycles
-to see which one get the next lump of cash). The "winner" get 50
-BitCoin when this happen. Yesterday I came across the obvious way to
-join forces to increase ones changes of getting at least some coins,
-by coordinating the work on mining BitCoins across several machines
-and people, and sharing the result if one is lucky and get the 50
-BitCoins. Check out
-<a href="http://www.bluishcoder.co.nz/bitcoin-pool/">BitCoin Pool</a>
-if this sounds interesting. I have not had time to try to set up a
-machine to participate there yet, but have seen that running on ones
-own for a few days have not yield any BitCoins througth mining
-yet.</p>
-
-<p>Update 2010-12-15: Found an <a
-href="http://inertia.posterous.com/reply-to-the-underground-economist-why-bitcoi">interesting
-criticism</a> of bitcoin. Not quite sure how valid it is, but thought
-it was interesting to read. The arguments presented seem to be
-equally valid for gold, which was used as a currency for many years.</p>
-</description>
- </item>
-
- <item>
- <title>How to test if a laptop is working with Linux</title>
- <link>http://people.skolelinux.org/pere/blog/How_to_test_if_a_laptop_is_working_with_Linux.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/How_to_test_if_a_laptop_is_working_with_Linux.html</guid>
- <pubDate>Wed, 22 Dec 2010 14:55:00 +0100</pubDate>
- <description>
-<p>The last few days I have spent at work here at the <a
-href="http://www.uio.no/">University of oslo</a> testing if the new
-batch of computers will work with Linux. Every year for the last few
-years the university have organized shared bid of a few thousand
-computers, and this year HP won the bid. Two different desktops and
-five different laptops are on the list this year. We in the UNIX
-group want to know which one of these computers work well with RHEL
-and Ubuntu, the two Linux distributions we currently handle at the
-university.</p>
-
-<p>My test method is simple, and I share it here to get feedback and
-perhaps inspire others to test hardware as well. To test, I PXE
-install the OS version of choice, and log in as my normal user and run
-a few applications and plug in selected pieces of hardware. When
-something fail, I make a note about this in the test matrix and move
-on. If I have some spare time I try to report the bug to the OS
-vendor, but as I only have the machines for a short time, I rarely
-have the time to do this for all the problems I find.</p>
-
-<p>Anyway, to get to the point of this post. Here is the simple tests
-I perform on a new model.</p>
-
-<ul>
-
-<li>Is PXE installation working? I'm testing with RHEL6, Ubuntu Lucid
-and Ubuntu Maverik at the moment. If I feel like it, I also test with
-RHEL5 and Debian Edu/Squeeze.</li>
-
-<li>Is X.org working? If the graphical login screen show up after
-installation, X.org is working.</li>
-
-<li>Is hardware accelerated OpenGL working? Running glxgears (in
-package mesa-utils on Ubuntu) and writing down the frames per second
-reported by the program.</li>
-
-<li>Is sound working? With Gnome and KDE, a sound is played when
-logging in, and if I can hear this the test is successful. If there
-are several audio exits on the machine, I try them all and check if
-the Gnome/KDE audio mixer can control where to send the sound. I
-normally test this by playing
-<a href="http://www.nuug.no/aktiviteter/20101012-chef/ ">a HTML5
-video</a> in Firefox/Iceweasel.</li>
-
-<li>Is the USB subsystem working? I test this by plugging in a USB
-memory stick and see if Gnome/KDE notices this.</li>
-
-<li>Is the CD/DVD player working? I test this by inserting any CD/DVD
-I have lying around, and see if Gnome/KDE notices this.</li>
-
-<li>Is any built in camera working? Test using cheese, and see if a
-picture from the v4l device show up.</li>
-
-<li>Is bluetooth working? Use the Gnome/KDE browsing tool to see if
-any bluetooth devices are discovered. In my office, I normally see a
-few.</li>
-
-<li>For laptops, is the SD or Compaq Flash reader working. I have
-memory modules lying around, and stick them in and see if Gnome/KDE
-notice this.</li>
-
-<li>For laptops, is suspecd/hibernate working? I'm testing if the
-special button work, and if the laptop continue to work after
-resume.</li>
-
-<li>For laptops, is the extra buttons working, like audio level,
-adjusting background light, switching on/off external video output,
-switching on/off wifi, bluetooth, etc? The set of buttons differ from
-laptop to laptop, so I just write down which are working and which are
-not.</li>
-
-<li>Some laptops have smart card readers, finger print readers,
-acceleration sensors etc. I rarely test these, as I do not know how
-to quickly test if they are working or not, so I only document their
-existence.</li>
-
-</ul>
-
-<p>By now I suspect you are really curious what the test results are
-for the HP machines I am testing. I'm not done yet, so I will report
-the test results later. For now I can report that HP 8100 Elite work
-fine, and hibernation fail with HP EliteBook 8440p on Ubuntu Lucid,
-and audio fail on RHEL6. Ubuntu Maverik worked with 8440p. As you
-can see, I have most machines left to test. One interesting
-observation is that Ubuntu Lucid has almost twice the framerate than
-RHEL6 with glxgears. No idea why.</p>
-</description>
- </item>
-
- <item>
- <title>165 norske overvåkningskamera registert så langt i OpenStreetmap.org</title>
- <link>http://people.skolelinux.org/pere/blog/165_norske_overv__kningskamera_registert_s___langt_i_OpenStreetmap_org.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/165_norske_overv__kningskamera_registert_s___langt_i_OpenStreetmap_org.html</guid>
- <pubDate>Fri, 24 Dec 2010 11:20:00 +0100</pubDate>
- <description>
-<p>Jeg flikket litt på OpenStreetmap.org i går, og oppdaget ved en
-tilfeldighet at det er en rekke noder som representerer
-overvåkningskamera som ikke blir med på kartet med overvåkningskamera
-i Norge som
-<a href="http://people.skolelinux.org/pere/blog/Kart_over_overv__kningskamera_i_Norge.html">jeg
-laget</a> for snart to år siden. Fra før tok jeg med noder merket med
-man_made=surveillance, mens det er en rekke noder som kun er merket
-med highway=speed_camera. Endret på koden som henter ut kameralisten
-fra OSM, og vips er antall kamera økt til 165.</p>