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		<title>Elder Scrolls V: Skyrim &#8211; Thoughts</title>
		<link>http://rafutarbz2.wordpress.com/2011/11/18/elder-scrolls-v-skyrim-thoughts/</link>
		<comments>http://rafutarbz2.wordpress.com/2011/11/18/elder-scrolls-v-skyrim-thoughts/#comments</comments>
		<pubDate>Fri, 18 Nov 2011 03:23:16 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Misceláneo]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=980</guid>
		<description><![CDATA[I have spent the past seven days playing The Elder Scrolls V: Skyrim since the release day, and i have to say, it&#8217;s insane, its sucking the the life force out of my body. If you have no girl or boyfriend, no job then go for this game! I just can&#8217;t detach my self from [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=980&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<div id="attachment_982" class="wp-caption alignright" style="width: 379px"><img class="size-full wp-image-982" title="Riverwood, first town in Skyrim" src="http://rafutarbz2.files.wordpress.com/2011/11/skyrim-image-05.jpg?w=720" alt="Riverwood, first town in Skyrim"   /><p class="wp-caption-text">Riverwood, first town in Skyrim</p></div>
<p>I have spent the past seven days playing The Elder Scrolls V: Skyrim since the release day, and i have to say, it&#8217;s insane, its sucking the the life force out of my body. If you have no girl or boyfriend, no job then go for this game! I just can&#8217;t detach my self from it, it&#8217;s so alive, so vibrant, complex, smart and so epic&#8230; epic is the word that defines this game! This is maybe one of the best games i have ever played (if not the best). They say that before one dies, a person has to plant a tree, write a book, have a child&#8230; and play Skyrim.</p>
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			<media:title type="html">Riverwood, first town in Skyrim</media:title>
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	</item>
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		<title>MKV to MP4 for playback on PS3 &#8211; GNU/Linux</title>
		<link>http://rafutarbz2.wordpress.com/2011/07/10/mkv-to-mp4-for-playback-on-ps3-gnulinux/</link>
		<comments>http://rafutarbz2.wordpress.com/2011/07/10/mkv-to-mp4-for-playback-on-ps3-gnulinux/#comments</comments>
		<pubDate>Sun, 10 Jul 2011 15:09:04 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Tecnologia]]></category>

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		<description><![CDATA[This is just an updated version of other guides I found on the net. You will need these programs to do the conversion: - mkvtoolsnix - gpac - hexedit - ffmpeg (If you are running Slackware these packages can be found in SlackBuilds.org and Slacky.eu) 1- Extracting the video: First of all you need to [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=930&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><img class="alignleft size-full wp-image-958" src="http://rafutarbz2.files.wordpress.com/2011/07/el-hombre-gordo-ve-la-tv-thumb109420012.jpg?w=720" alt=""   />This is just an updated version of other guides I found on the net.</p>
<p>You will need these programs to do the conversion:</p>
<p>- mkvtoolsnix<br />
- gpac<br />
- hexedit<br />
- ffmpeg</p>
<p>(If you are running Slackware these packages can be found in SlackBuilds.org and Slacky.eu)</p>
<h3></h3>
<h2><strong>1- Extracting the video:</strong></h2>
<p>First of all you need to know two things: in which track is the video and whats it&#8217;s fps:</p>
<pre><span style="color:#0000ff;">$ mkvmerge -i The_Matrix.mkv
Track ID 1: video (V_MPEG4/ISO/AVC)</span></pre>
<p>the video is in the track #1</p>
<pre><span style="color:#0000ff;">$ mkvinfo -i The_Matrix.mkv | less</span></pre>
<p>and the first fps result i get is 23.976 (which is the most common). We will be needing this later.<br />
With this information you can now extract the video from the MKV container:</p>
<pre><span style="color:#0000ff;">$ mkvextract tracks The_Matrix.mkv 1:video.h264</span></pre>
<h3></h3>
<h2><strong>2- Extracting and re-encoding the audio:</strong></h2>
<p>I don&#8217;t know why the audio needs to be re-encoded and I don&#8217;t care to know(Wikipedia might know), I just know that this step is necessary:</p>
<pre><span style="color:#0000ff;">$ ffmepg -i The_Matrix.mkv -vn -acodec aac -ac 2 audio.aac</span></pre>
<p>If ffmepg complains something about aac, just add this parameter to the command:</p>
<pre><span style="color:#0000ff;">$ ffmepg -i The_Matrix.mkv -vn -acodec aac -ac <strong>-strict experimental</strong> 2 audio.aac</span></pre>
<h2></h2>
<h2><strong>3- Hexediting the video:</strong></h2>
<p>With hexedit open the video.h264 file you generated, and on the first line, change the following string from:</p>
<pre><span style="color:#0000ff;">67 64 00 33</span></pre>
<p>to</p>
<pre><span style="color:#0000ff;">67 64 00 <strong>29</strong></span></pre>
<p>then save and exit.</p>
<h2><strong>4- Creating the MP4 container:</strong></h2>
<pre><span style="color:#0000ff;">$ MP4Box -add video.h264 -add audio.aac -fps 23.976 The_Matrix.mp4</span></pre>
<p>if you get an error like &#8220;I/O error&#8221; than it&#8217;s because you don&#8217;t have enough space in /tmp, this can be fixed by specifying another /tmp catalog, like /home:</p>
<pre><span style="color:#0000ff;">$ MP4Box -add video.h264 -add audio.aac -fps 23.976 The_Matrix.mp4 <strong>-tmp $HOME</strong></span></pre>
<p><strong>Source:</strong><br />
<a href="http://www.swedroid.se/forum/45653-mkv-container-till-mp4-container-i-linux-x264.html" target="_blank">http://www.swedroid.se/forum/45653-mkv-container-till-mp4-container-i-linux-x264.html</a><br />
<a href="http://oddmanout.wordpress.com/2008/01/26/converting-an-mkv-h264-file-to-ps3-mp4-without-re-encoding-on-mac-os-x" target="_blank">http://oddmanout.wordpress.com/2008/01/26/converting-an-mkv-h264-file-to-ps3-mp4-without-re-encoding-on-mac-os-x</a></p>
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			<media:title type="html">rafu</media:title>
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		<title>ZFS &#8211; Zettabyte Filsystemet</title>
		<link>http://rafutarbz2.wordpress.com/2010/10/29/zfs-zettabyte-filsystemet/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/10/29/zfs-zettabyte-filsystemet/#comments</comments>
		<pubDate>Fri, 29 Oct 2010 23:16:09 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Svenska]]></category>
		<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=884</guid>
		<description><![CDATA[Finns även att ladda ner som en PDF fil. &#160; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211; ZFS &#8211; Zettabyte Filsystemet Introduktion För vissa handlar filsystem bara om lagring &#8220;ju större desto bättre&#8221;, för andra handlar det både om lagring och snabb tillgång till filerna. En annan grupp tycker också att de här sakerna är viktiga men att det är vitalt [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=884&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p style="text-align:left;"><img class="size-full wp-image-910 alignright" title="OpenSolarisLogo" src="http://rafutarbz2.files.wordpress.com/2010/10/opensolarislogoxprt1.gif?w=720" alt=""   />Finns även att ladda ner som en <strong> </strong><a title="PDF" href="http://rafutarbz2.files.wordpress.com/2010/10/projektarbete-zfs_blog1.pdf">PDF fil</a>.</p>
<p style="text-align:left;">&nbsp;</p>
<h2 style="text-align:left;">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;</h2>
<h2 style="text-align:center;"><strong>ZFS &#8211; Zettabyte Filsystemet</strong><br />
<strong> </strong></h2>
<h3 style="text-align:center;">Introduktion</h3>
<p>För vissa handlar filsystem bara om lagring &#8220;ju större desto bättre&#8221;, för andra handlar det både om lagring och snabb tillgång till filerna. En annan grupp tycker också att de här sakerna är viktiga men att det är vitalt att ha ett skalbart filsystem som ska kunna växa i framtiden, den här gruppen tycker att RAID är en bra lösning eftersom den också ger data redundans. Andra ökar flexibiliteten ännu mer och kör någon volymhanterare ovanpå RAID samtidigt som de kan ta snapshots av sina volymer.<br />
Nackdelarna med den här metoden var att RAID kontrollerna är dyra. Komplexiteten hade blivit större och svårare att adressera, den ökade med varje ny implementation.<br />
ZFS är systemadministratörens panacé. Alla överkomplexa lager försvinner och administrationen simplifieras. Man kan utan tvekan säga att ZFS är &#8220;filsystemets filsystem&#8221;.</p>
<h3 style="text-align:center;">ZFS<br />
<strong> </strong></h3>
<p><strong>Vad är ZFS?</strong><br />
Sun Microsystems meddelade 2004 att de höll på att utveckla ett nytt filsystem, året därpå kom källkoden in i trunk trädet på Solaris utveckling. 2006 meddelade Sun att deras nya filsystem hette ZFS och att den skulle inkluderas i Solaris 10.<br />
ZFS är en ny sorts filsystem som ger en simplifierad administration, transitional semantics (övergångssemantik), datorintegritet, feltolerans och en enorm skalbarhet. ZFS är inte en förbättring av den nuvarande teknologin; fundamentalt är det en ny annalkande data administration. Detta föreställer en modell som sammanställer lagring och utesluter konceptet av volymhantering och problemen associerade med partitioner, försörjning av resurser, förlorad bandbredd och immobiliserad lagring. ZFS kan lagra 16 Exabytes i varje pool (16 miljoner Terabytes). ZFS är ett 128-bits filsystem, den kan alltså adressera 18 triljoner mer gånger data än ett 64-bits system. Filsystemet är designad att bli så pass stor att den aldrig kommer att drabbas av våra psykiska begränsningar. Ett exempel om ZFS förmåga: om en användare skulle skapa 1000 filer per sekund, skulle det ta honom 9000 år för att nå filsystemets lagringsgränser.</p>
<p><strong>Operativsystem som stödjer ZFS</strong><br />
ZFS är del av Oracles Solaris operativsystem, den är tillgänglig till både SPARC och x86 baserade operativsystem. Eftersom koden är fri programvara har filsystemet portats till andra operativsystem och plattformar:<br />
- OpenSolaris (är den fria versionen av Solaris och kommer med ZFS som default)<br />
- FreeBSD (ZFS har varit del av FreeBSD sedan version 7, den är inte default)<br />
- GNU/kFreeBSD (FreeBSD kärnan med ett GNU userland. ZFS är inte default)<br />
- FreeNAS<br />
- NetBSD<br />
Tyvärr har ZFS inte kunnat portas till GNU/Linux på grund av inkompatibilitet mellan licenserna GPL och CDDL, filsystemet kan inte levereras direkt i Linuxkärnan. Dock finns det en pågående utveckling av ett filsystem med samma egenskaper som ZFS har men licensierad under GPLv2 till Linux kärnan som heter Btrfs (utalat Butter-FS eller Btree-FS).</p>
<p><strong>Särdrag hos ZFS</strong></p>
<ul>
<li><strong>Storage pools</strong></li>
</ul>
<p>ZFS använder konceptet av storage pools, också kallad zpool, för att hantera psykiska lagringsenheter. Förr i tiden var filsystemen uppbyggda ovanpå en enda psykiskt enhet. För att adressera flera enheter och tillföra data redundans, var konceptet av volymhantering introducerat för att ge en representation av en enda enhet så att filsystemen inte skulle behöva modifieras för att utnyttja flera diskar.<br />
Vad ZFS gör är att lägga till enheterna i en pool istället för att vara tvungen att skapa virtuella volymer. Poolen beskriver de psykiska karakteristikerna av enheten och agerar som ett egenmäktigt data lager där filsystem kan skapas. Filsystem är inte längre begränsade i enskilda diskar, ZFS tillåter dela med sig diskutrymmet med alla filsystem som finns i poolen. Med den här tekniken behöver man inte längre fastställa i förväg filsystemets storlek, filsystemet växer automatiskt i diskutrymmet som det har blivit tilldelat till poolen.</p>
<ul>
<li><strong>Trasnactional Semantics</strong></li>
</ul>
<p>ZFS är ett övergångsfilsystem, det betyder att filsystemets tillstånd alltid är jämnt i disken. Traditionella filsystem skriver över datan på plats, vilket betyder att vid ett strömavbrott, mellan tiden en data block tilldelas och när den länkas in till en katalog, kommer filsystemet att lämnas i ett ojämnt tillstånd. Nyligen har filsystemen introducerat konceptet av journaling. Journal processen<br />
sparar händelserna i en skild journal som sedan kan spolas tillbaka om ett systemkrasch inträffar.<br />
Nackdelen med journalförande filsystem är att de kan ha en hög overhead med metadata eftersom datan måste skrivas två gånger till journalen. Med ett övergångsfilsystem hanteras datan med copy-on-write semantiken. Den grundläggande tanken är att om flera systemanrop begär resurser som ursprungligen skiljts, kan alla ges pekare till samma resurs. Denna funktion kan bibehållas tills ett systemanrop försöker ändra sin &#8220;kopia&#8221; av resursen, då en äkta kopia skapas för att förhindra att förändringar blir synliga för alla andra. Om ett systemanrop aldrig gör några ändringar behöver inga ytterligare kopior skapas.</p>
<ul>
<li><strong>Checksums och självläkande data</strong></li>
</ul>
<p>Den traditionella designen menar att vissa fel, tex som att skriva ett helt block till en felaktig plats, kan resultera i att datan blir inkorrekt, på grund av att det inte finns ett checksum error. ZFS lagrar checksum på så sätt att när dessa fel upptäcks kan problemet lätt återhämtas.<br />
ZFS har också en självläkande mekanism. Filsystemet stödjer storage pools med varierande nivåer av data redundas. När en felaktig block har upptäckts, ger ZFS den korrekta datan från en annan redundant kopia som reparerar den felaktiga datan, och byter ut den med den korrekta datan.</p>
<ul>
<li><strong>Snapshots</strong></li>
</ul>
<p>En snapshot (eller en &#8220;ögonblicksbild&#8221;) är en read-only kopia av ett filsystem eller volym, den kan skapas snabbt och enkelt. Snapshots går ut på att man skapar en exakt kopia av sitt filsystem som inte tar något extra lagringsutrymme så länge originalet inte förändras.<br />
Nu när vi har fått en översikt av ZFS ska vi se några praktiska exempel.</p>
<p style="text-align:center;">&nbsp;</p>
<p style="text-align:center;"><strong>ZFS i praktiken</strong></p>
<p>Alla exempel här var utförda på en virtualiserad 64-bits miljö med OpenSolaris 2009.06.<br />
Innan man kör ZFS finns det en del viktiga saker att ha i tanken:<br />
- Köra ZFS i ett system som kör en 64-bitars kärna.<br />
- Ha minst 1GB ledig RAM-minne.<br />
- Ungefär 64KB minne förbrukas för varje ZFS montering.</p>
<h3><strong>==&gt;Att skapa en pool</strong></h3>
<p>Här kommer vi att skapa en 4GB stor pool med diskarna c1d0 och c1d1 var och en är 2GB. För att skapa en pool med namnet babilonia använder vi kommandot zpool på följande sätt:<br />
<em>zpool create -f [poolens namn] [våra diskar]</em></p>
<pre><span style="color:#000080;">#/usr/sbin/zpool create -f babilonia c1d0 c1d1</span>

För att se om poolen skapades kör vi kommandot zpool list:

<span style="color:#000080;"># zpool list</span>
<span style="color:#000080;">NAME SIZE USED AVAIL CAP HEALTH ALTROOT</span>
<span style="color:#000080;">babilonia 3,88G 59,5K 3,87G 0% ONLINE -</span></pre>
<p>Vi kan se att poolen är 3,88GB stor och att den är tillgänglig från /babilonia.</p>
<h3><strong>==&gt;Att skapa ett ZFS filsystem</strong></h3>
<p>Nu när vi har skapat en pool kan vi nu definiera filsystemet. Vi kommer att skapa två filsystem, en för att att installera våra applikationer och den andra för annan data:<br />
<em>zfs create [poolens namn/filsystem]</em></p>
<pre><span style="color:#000080;"># /usr/sbin/zfs create babilonia/applikationer</span>
<span style="color:#000080;"> # /usr/sbin/zfs create babilonia/data</span></pre>
<p>För att lista de nya filsystemen kör vi kommandot zfs igen men denna gången med parametern list:</p>
<pre><span style="color:#000080;"># zfs list</span>
<span style="color:#000080;"> NAME USED AVAIL REFER MOUNTPOINT</span>
<span style="color:#000080;"> babilonia 138K 3,81G 27,5K /babilonia</span>
<span style="color:#000080;"> babilonia/applikationer 24,5K 3,81G 24,5K /babilonia/applikationer</span>
<span style="color:#000080;"> #babilonia/data 24,5K 3,81G 24,5K /babilonia/data</span></pre>
<p>Utmatningen visar oss två nya filsystem som också är synliga med kommandot df -k. Vi kan observera att alla filsystem delar samma utrymme som är 3,81GB vilket är<br />
poolens storlek.<br />
Filsystemen som skapas med ZFS monteras automatiskt och ständigt. Med ZFS har vi sparat oss stegen med kommandon: format, newfs, mount och editera /etv/vfstab.</p>
<h3><strong>==&gt;ZFS egenskaper</strong></h3>
<p>ZFS filsystemet har egenskaper som kan aktiveras och inaktiveras beroende på våra behov. Vi kan göra detta med kommandot zfs och parametern set för att fastställa, och get för att läsa. Vi ska gå igenom de mest intressanta.</p>
<p><strong>Skapa kvotor och reservera utrymme</strong><br />
ZFS ger oss möjligheten att kontrollera utrymmet i vårt filsystem, sätta kvotor och reserva utrymme i filsystemet.<br />
Vi ska skapa en kvota för filsystemet babilonia/applikationer och reservera utrymme från poolen till babilonia/data.<br />
För att skapa kvotan använder vi kommandot zfs följt med set quota=1GB:<br />
<em>zfs set quota=[storlek] [poolens namn/filsystemet]</em></p>
<pre><span style="color:#000080;"> # /usr/sbin/zfs set quota=1GB babilonia/applikationer</span></pre>
<p>Om vi kör kommandot zfs list för att se filsystemet kan vi se att kvotan har skapats:</p>
<pre><span style="color:#000080;"> # zfs list</span>
<span style="color:#000080;"> NAME USED AVAIL REFER MOUNTPOINT</span>
<span style="color:#000080;"> babilonia 138K 3,81G 27,5K /babilonia</span>
<span style="color:#000080;"> babilonia/applikationer 24,5K 1024M 24,5K /babilonia/applikationer</span>
<span style="color:#000080;"> babilonia/data 24,5K 3,81G 24,5K /babilonia/data</span></pre>
<p>En kvota begränsar utrymmet i filsystemet men garanterar inte ovanstående utrymme.<br />
För att reservera utrymmet för filsystemet i poolen, kör vi kommandot zfs med parametrarna set reservation=1GB:<br />
<em>zfs set reservation=[storlek] [poolens namn/filsystemet]</em></p>
<pre><span style="color:#000080;"> # /usr/sbin/zfs set reservation=1GB babilonia/data</span></pre>
<p>Det finns nu 1GB reserverat i poolen för filsystemet babilonia/data. Nu finns det ingen fara om resten av filerna råkar fylla poolen, vårt utrymme är redan<br />
reserverat. Om vi kör kommandot zfls list kan vi se att poolen babilonia har använt 1GB och för resten av filsystemet finns det 2,81GB ledigt utrymme:</p>
<pre><span style="color:#000080;"> # zfs list</span>
<span style="color:#000080;"> NAME USED AVAIL REFER MOUNTPOINT</span>
<span style="color:#000080;"> babilonia 1,00G 2,81G 27,5K /babilonia</span>
<span style="color:#000080;"> babilonia/applikationer 24,5K 1024M 24,5K /babilonia/applikationer</span>
<span style="color:#000080;"> babilonia/data 24,5K 3,81G 24,5K /babilonia/data</span></pre>
<p><strong>Komprimerat filsystem</strong><br />
ZFS erbjuder nya möjligheter, som att ha ett filsystem med komprimerad information. Kommandot för att aktivera filsystemets komprimering är zfs med<br />
parametrarna compression=on. Följande exempel aktiverar komprimeringen på filsystemet babilionia/data:<br />
<em>zfs set compression=[on/off] [poolens namn/filsystemet]</em></p>
<pre><span style="color:#000080;"> #/usr/sbin/zfs set compression=on babilonia/data</span>
<span style="color:#000080;"> För att inhämta information om filsystemets komprimerings ratio:</span>
<span style="color:#000080;"> zfs get [informationen vi vill se] [poolens namn/filsystemet]</span>
<span style="color:#000080;"> #zfs get compressratio babilonia/data</span>
<span style="color:#000080;"> NAME PROPERTY VALUE SOURCE</span>
<span style="color:#000080;"> babilonia/data compressratio 1.00x -</span></pre>
<p><strong>Read-only filsystem</strong><br />
För att sätta filsystemet i ett read-only läge använder vi kommandot zfs med parametern readonly=on:<br />
<em>zfs set readonly =[on/off] [poolens namn/filsystemet]</em></p>
<pre><span style="color:#000080;"> #/usr/sbin/zfs set readonly=on babilonia/data</span></pre>
<p><strong>Ändra monteringspunkten</strong><br />
För att ändra monteringspunkten i ett filsystem kör vi kommandot zfs och sätter den nya monterings punkten med parametern mountpoint. Följande exempel visar hur man byter monteringspunkten från babilionia/data till /unixrummet:<br />
<em>zfs set mountpoint =[/monteringspunkt] [poolens namn/filsystemet]</em></p>
<pre><span style="color:#000080;"> # cd /</span>
<span style="color:#000080;"> # zfs set mountpoint=/aulaunix babilonia/data</span></pre>
<p>Vi kolla om det gjordes några ändringar:</p>
<pre><span style="color:#000080;"> # zfs list</span>
<span style="color:#000080;"> NAME USED AVAIL REFER MOUNTPOINT</span>
<span style="color:#000080;"> babilonia 1,00G 2,81G 25,5K /babilonia</span>
<span style="color:#000080;"> babilonia/applikationer 24,5K 1024M 24,5K /babilonia/applikationer</span>
<span style="color:#000080;"> babilonia/data 24,5K 3,81G 24,5K /aulaunix</span></pre>
<p><strong>Titta på ZFS eganskaper</strong><br />
Hitills har vi använt kommandot zfs set för att sätta egenskaper på filsystemet.<br />
För att se värden på ett ZFS filsystem, gör vi det med kommandot zfs och parametern get:<br />
<em>zfs get [värdet] pool/filsystem</em></p>
<pre><span style="color:#000080;"> # zfs get quota babilonia/applikationer</span>
<span style="color:#000080;"> NAME PROPERTY VALUE SOURCE</span>
<span style="color:#000080;"> babilonia/applikationer quota 1G local</span></pre>
<p>Med parametern all kan vi se alla egenskaper och default värden.</p>
<pre><span style="color:#000080;"> # zfs get all babilonia/applikationer</span>

<span style="color:#000080;"> NAME PROPERTY VALUE SOURCE</span>

<span style="color:#000080;"> babilonia/applikationer type filesystem -</span>
<span style="color:#000080;"> babilonia/applikationer creation Wed Oct 20 19:11 2010 -</span>
<span style="color:#000080;"> babilonia/applikationer used 24,5K -</span>
<span style="color:#000080;"> babilonia/applikationer available 1024M -</span>
<span style="color:#000080;"> babilonia/applikationer referenced 24,5K</span>
<span style="color:#000080;"> babilonia/applikationer compressratio 1.00x -</span>
<span style="color:#000080;"> babilonia/applikationer mounted yes -</span>
<span style="color:#000080;"> babilonia/applikationer  quota 1G local</span>
<span style="color:#000080;"> babilonia/applikationer  reservation none default</span>
<span style="color:#000080;"> babilonia/applikationer  recordsize 128K default</span>
<span style="color:#000080;"> babilonia/applikationer  mountpoint /babilonia/applikationer default</span>
<span style="color:#000080;"> babilonia/applikationer  sharenfs off default</span>
<span style="color:#000080;"> babilonia/applikationer  checksum on default</span>
<span style="color:#000080;"> babilonia/applikationer  compression off default</span>
<span style="color:#000080;"> babilonia/applikationer  atime on default</span>
<span style="color:#000080;"> babilonia/applikationer  devices on default</span>
<span style="color:#000080;"> babilonia/applikationer  exec on default</span>
<span style="color:#000080;"> babilonia/applikationer  setuid on default</span>
<span style="color:#000080;"> babilonia/applikationer  readonly off default</span>
<span style="color:#000080;"> babilonia/applikationer  zoned off default</span>
<span style="color:#000080;"> babilonia/applikationer  snapdir hidden default</span>
<span style="color:#000080;"> babilonia/applikationer  aclmode groupmask default</span>
<span style="color:#000080;"> babilonia/applikationer  aclinherit secure default</span></pre>
<h3><strong>==&gt;Pool hantering</strong></h3>
<p><strong>Lägga till nya diskar i poolen</strong><br />
För att utöka utrymmet i en pool måste vi lägga till nya diskar i maskinen eller använda partitioner (slices) som inte används på andra diskar. För att utöka<br />
poolen använder vi kommandot zpool med parametern add:<br />
<em>zpool add -f [poolens namn] [disk som ska läggas till]</em></p>
<pre><span style="color:#000080;">bash-3.00# zpool list -H</span>
<span style="color:#000080;">babilonia 1,98G 77,5K 1,98G 0% EN LÍNEA -</span>
<span style="color:#000080;">bash-3.00# /usr/sbin/zpool add -f babilonia c0d1</span>
<span style="color:#000080;">bash-3.00# zpool list -H</span>
<span style="color:#000080;">babilonia 3,97G 184K 3,97G 0% EN LÍNEA -</span></pre>
<p>Som vi kan se på zpool add&#8217;s utmatning har utrymmet ökat från 1,89GB till 3,97GB. Man kan lägga till hur många diskar man tror att det är nödvändigt.</p>
<p><strong>Ta bort diskar från poolen</strong><br />
Man kan ta veck en disk som är del av poolen med kommandot zpool remove:<br />
<em>zpool remove [poolens namn] [disk som ska bort]</em></p>
<pre><span style="color:#000080;"># zpool remove babilonia c0d1</span></pre>
<p><strong>Eliminera en pool</strong><br />
Om vi ska eliminera en pool helt och lämna diskarna fria för att använda de till någonting annat, använder vi kommandot zpool:<br />
<em>zpool destroy -f [poolens namn]</em></p>
<pre><span style="color:#000080;"># /usr/sbin/zpool destroy -f babilonia</span></pre>
<p>Kommandot är destruktivt och vi måste vara helt säkra att vi inte har värdefull information i poolen som kommer att tas bort.</p>
<p><strong>Byta ut en disk i poolen</strong><br />
Om en av diskarna skulle krångla eller gå sönder och måste bytas ut, använder vi kommandot zpool med parametern replace:<br />
<em>zpool replace -f [pool] [disk som ska bytas] [ny disk]</em><br />
Innan ändringen:</p>
<pre><span style="color:#000080;"> # zpool status</span>
<span style="color:#000080;"> conjunto: babilonia</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: resilver completed con 0 errores en Wed Oct 20 16:46:57 2010</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> almoroz ONLINE 0 0 0</span>
<span style="color:#000080;"> mirror ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c1d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> errores: ningún error de datosconocido</span></pre>
<p><strong>Skapa en mirror (RAID 1)</strong><br />
Om vi skulle skapa en spegel av två diskar med verktyg som Solaris Volume Manager skulle vi göra en hel del steg för att nå vårt mål. Med ZFS är det mycket enkelt, vi behöver bara kommandon zpool och zfs.<br />
<em>zpool create -f [poolens namn] mirror [diskar]</em></p>
<pre><span style="color:#000080;">#zpool create -f babilonia mirror c0d1 c1d1</span></pre>
<p>med zpool status verifierar vi om de har skapats korrekt:</p>
<pre><span style="color:#000080;"> bash-3.00# zpool status</span>
<span style="color:#000080;"> conjunto: babilonia</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: no se ha solicitado ninguna</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> babilonia EN LÍNEA 0 0 0</span>
<span style="color:#000080;"> mirror EN LÍNEA 0 0 0</span>
<span style="color:#000080;"> c0d1 EN LÍNEA 0 0 0</span>
<span style="color:#000080;"> c1d1 EN LÍNEA 0 0 0</span></pre>
<p><strong>Skapa en mirror från en befintlig disk</strong><br />
Om vi har en zpool formad av en enda disk och vi vill lägga till en disk för att skapa en mirror, avänder vi kommandot zpool med parametern attach:<br />
<em>zpool attach -f [pool] [disk] [ny disk]</em></p>
<pre> <span style="color:#000080;">#zpool attach -f almoroz c0d1 c1d1</span></pre>
<p>Kommandot skapar en mirror bestående av diskar, c0d1 som redan fanns i maskinen och den nya disken c1d1.</p>
<p><strong>Byta ut en disk från spegeln</strong><br />
Om en av diskarna skulle krångla eller gå sönder och måste ersättas, använder vi kommandot zpool med parametern replace:<br />
<em>zpool replace -f [pool] [disk som ska ersättas] [ny disk]</em></p>
<p>Innan ändringen</p>
<pre><span style="color:#000080;"> # zpool status</span>
<span style="color:#000080;"> conjunto: almoroz</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: resilver completed con 0 errores en Wed Oct 20 16:46:57 2010</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> almoroz ONLINE 0 0 0</span>
<span style="color:#000080;"> mirror ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c1d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> errores: ningún error de datosconocido</span></pre>
<p>Vi byter disken c1d1 mot c0d1s0:</p>
<pre><span style="color:#000080;">#/usr/sbin/zpool replace -f babilonia c0d1 c1d1</span></pre>
<p>och verifierar:</p>
<pre><span style="color:#000080;"> #zpool status</span>
<span style="color:#000080;"> conjunto: almoroz</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: resilver completed con 0 errores en Wed Oct 20 16:46:57 2010</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> almoroz ONLINE 0 0 0</span>
<span style="color:#000080;"> mirror ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> replacing ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c1d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> errores: ningún error de datosconocido</span></pre>
<pre><span style="color:#000080;"> # zpool status</span>
<span style="color:#000080;"> conjunto: almoroz</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: resilver completed con 0 errores en Wed Oct 20 16:46:57 2010</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> almoroz ONLINE 0 0 0</span>
<span style="color:#000080;"> mirror ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1s0 ONLINE 0 0 0</span></pre>
<h3><strong>==&gt;RAID-Z</strong></h3>
<p>ZFS tillåter att skapa RAID-Z vilket är likartad till RAID-5. RAID-5 består minst av tre diskar och i varje disk reserveras det plats åt dataparitet.<br />
Fördelarna med RAID-Z är att den har distribuerad paritet, enkel och dubbel. Dubbel paritet tillåter överta en error på en av de två diskarna som RAID-Z omfattar.</p>
<p><strong>Att skapa en RAID-Z</strong><br />
För att skapa en RAID-Z med enkel paritet kör vi kommandot:<br />
<em>zpool create -f [pool] raidz [diskar]</em><br />
Följande exempel visar hur den skapas och verifieras:</p>
<pre><span style="color:#000080;"> #/usr/sbin/zpool create -f babilonia raidz c0d1 c1d1 c2t0d0</span>
<span style="color:#000080;"> # zpool status</span>
<span style="color:#000080;"> conjunto: babilonia</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: no se ha solicitado ninguna</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> babilonia ONLINE 0 0 0</span>
<span style="color:#000080;"> raidz1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c1d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c2t0d0 ONLINE 0 0 0</span>
<span style="color:#000080;"> errores: ningún error de datos conocido</span></pre>
<p>För att skapa en RAID-Z med dubbel paritet kör vi kommandot:<br />
<em>zpool create -f [pool] raidz2 [diskar]</em></p>
<pre><span style="color:#000080;"> # zpool create -f babilonia raidz2 c0d1 c1d1 c2t0d0</span>
<span style="color:#000080;"> # zpool status</span>
<span style="color:#000080;"> conjunto: babilonia</span>
<span style="color:#000080;"> estado: ONLINE</span>
<span style="color:#000080;"> limpiar: no se ha solicitado ninguna</span>
<span style="color:#000080;"> config:</span>
<span style="color:#000080;"> NAME STATE READ WRITE CKSUM</span>
<span style="color:#000080;"> babilonia ONLINE 0 0 0</span>
<span style="color:#000080;"> raidz2 ONLINE 0 0 0</span>
<span style="color:#000080;"> c0d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c1d1 ONLINE 0 0 0</span>
<span style="color:#000080;"> c2t0d0 ONLINE 0 0 0</span>
<span style="color:#000080;"> errores: ningún error de datos conocido</span></pre>
<p><strong>Snapshots</strong><br />
Vi kan dra stor nytta av snapshots. Tex för att göra modifikationer på tjänster om de inte skulle fungera.<br />
Vi har följande filsystem i babilonia poolen:</p>
<pre><span style="color:#000080;"># zfs list</span>
<span style="color:#000080;"> NAME USED AVAIL REFER MOUNTPOINT</span>
<span style="color:#000080;"> babilonia 500M 3,42G 27,5K /babilonia</span>
<span style="color:#000080;"> babilonia/test1 500M 3,42G 500M /babilonia/test1</span>
<span style="color:#000080;"> babilonia/test2 24,5K 3,42G 24,5K /babilonia/test2</span>
<span style="color:#000080;"> Filsystemet babilonia/test1 innehar följande filer:</span></pre>
<pre><span style="color:#000080;"># ls -lrt</span>
<span style="color:#000080;"> total 1024223</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil1</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil2</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil3</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil4</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil5</span></pre>
<p>Vi skapar en snapshot av filsystemet babilionia/test1 med kommandot zfs och parametern snapshots:<br />
<em>zfs snapshot [pool/filsystem]@ogonblick</em></p>
<pre><span style="color:#000080;"> #zfs snapshot babilonia/test1@ogonblick</span></pre>
<p>Med zpool list kan vi se att ögonblicksbilden har skapats:</p>
<pre><span style="color:#000080;"> #zfs list</span>
<span style="color:#000080;"> NAME USED AVAIL REFER MOUNTPOINT</span>
<span style="color:#000080;"> babilonia 300M 3,61G 27,5K /babilonia</span>
<span style="color:#000080;"> babilonia/test1 300M 3,61G 300M /babilonia/test1</span>
<span style="color:#000080;"> babilonia/test1@ogonblick 0 - 300M -</span>
<span style="color:#000080;"> babilonia/test2 24,5K 3,61G 24,5K /babilonia/test2</span></pre>
<p>Nu ska vi simulera en liten katastrof genom att ta bort fil4 och fil5:</p>
<pre><span style="color:#000080;"> # rm fil4 fil5</span>
<span style="color:#000080;"> # ls -lrt</span>
<span style="color:#000080;"> total 614541</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil1</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil2</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil3</span></pre>
<p>Vi kan återställa de raderade filerna med vår snapshot. Vi återställer filerna med kommandot zfs och parametern rollback:<br />
<em>zfs rollback [pool/sistemadeficheros]@ogonblick</em></p>
<pre><span style="color:#000080;"> #zfs rollback -r babilonia/prueba1@ogonblick</span>
<span style="color:#000080;"> # ls -lrt</span>
<span style="color:#000080;"> total 1024223</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil1</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil2</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil3</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil4</span>
<span style="color:#000080;"> -rw------T 1 root root 104857600 Oct 20 13:10 fil5</span></pre>
<p>Resultatet blir att vi återställer filerna fil4 och fil5.</p>
<h3 style="text-align:center;"><strong>Slutsats</strong></h3>
<p>Som vi har sett på tidigare exempel; ZFS är kanske det bästa filsystemet som finns idag. Den har tagit de bästa egenskaperna av tidigare filsystem, placerat de i ett enda ställe och förbättrat tekniken. ZFS är ett filsystem som siktar mot framtiden, den kombinerar innovation och erfarenhet. Den är kraftfull, robust och elegant. Personligen har jag fortfarande svårt att tro att det här filsystemet är ute på nätet och är fri att använda, och med det menar jag ”fri” som i ”frihet”.</p>
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		<title>Gnash SlackBuild</title>
		<link>http://rafutarbz2.wordpress.com/2010/10/19/gnash-slackbuild/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/10/19/gnash-slackbuild/#comments</comments>
		<pubDate>Tue, 19 Oct 2010 22:45:47 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=841</guid>
		<description><![CDATA[Well Slackers it&#8217;s time to run Gnash and purge the shitty adobe flash player from our systems. This is a SlackBuild that I have yet not committed in SlackBuilds.org. The compilation took approximately 35min, this was done in a x86-machine with a dualcore processor and 2GB RAM-memory. Dependencies: (most can be found in Slackbuild.org) Agg, [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=841&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p style="text-align:left;"><img class="alignright size-full wp-image-855" title="Slackware penguin" src="http://rafutarbz2.files.wordpress.com/2010/10/slackpenguinlogo-small1.jpg?w=720" alt=""   /><br />
Well Slackers it&#8217;s time to run Gnash and purge the shitty adobe flash player from our systems. This is a SlackBuild that I have yet not committed in <strong><a href="http://slackbuilds.org/" target="_blank">SlackBuilds.org</a></strong>.</p>
<p style="text-align:left;">The compilation took approximately 35min, this was done in a x86-machine with a dualcore processor and 2GB RAM-memory.</p>
<p style="text-align:left;"><strong>Dependencies: </strong>(most can be found in <a href="http://slackbuilds.org/" target="_blank">Slackbuild.org</a>)<br />
Agg, Dejagnu, FFMpeg, Ming, Swfmill, MTASC, Speex Haxe, libva and x264-20100528.<br />
Note: Dejagnu, Ming and Swfmill are required only in compilation, not in run-time.<span style="color:#808080;"> </span></p>
<p style="text-align:left;"><span style="color:#808080;">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-</span></p>
<h3 style="text-align:left;"><strong>Source Download</strong><em> </em></h3>
<p style="text-align:left;"><strong><span style="color:#000000;"><a href="ftp://ftp.gnu.org/pub/gnu/gnash/0.8.8/gnash-0.8.8.tar.bz2" target="_blank">gnash-0.8.8.tar.bz2</a></span> </strong>(ce57f66e222f7eb1adf7f7b4a1274612)</p>
<h3 style="text-align:left;"><strong>Download SlackBuild</strong><em> </em></h3>
<p><strong><a href="http://www.speedyshare.com/files/24934815/download/gnash.tar.gz" target="_blank">gnash.tar.gz</a> </strong>(b1e157204e61e4571c7dcd9c39276bf7)<em> </em></p>
<p><span style="color:#008000;"><strong>**This post will be constantly updated</strong></span><em><br />
</em></p>
<h3 style="text-align:left;"><em><br />
</em></h3>
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		<title>Gnash needs your help!</title>
		<link>http://rafutarbz2.wordpress.com/2010/08/02/gnash-needs-your-help/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/08/02/gnash-needs-your-help/#comments</comments>
		<pubDate>Mon, 02 Aug 2010 13:26:10 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Politica y Sociedad]]></category>
		<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=798</guid>
		<description><![CDATA[Visiting gnashdev.org today I found this: So the Gnash team is broke, and has been for most of a year. This has forced many, but not all of the Gnash developers to find paying work, and mostly stop working on Gnash. The few of us left focused on Gnash like to eat and pay bills. [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=798&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<div id="attachment_802" class="wp-caption alignright" style="width: 210px"><a href="http://www.openmedianow.org/?q=node/32"><img class="size-full wp-image-802   " title="Gnash is broke" src="http://rafutarbz2.files.wordpress.com/2010/08/gnash_broke.jpg?w=720" alt=""   /></a><p class="wp-caption-text">Donate to Open Media Now</p></div>
<p style="text-align:justify;">Visiting <strong><a href="http://www.gnashdev.org/?q=node/74" target="_blank">gnashdev.org</a></strong> today I found this:</p>
<blockquote style="text-align:justify;"><p><span style="color:#0000ff;"><strong><em>So the Gnash team is broke, and has been for most of a year. This has  forced many, but not all of the Gnash developers to find paying work,  and mostly stop working on Gnash. The few of us left focused on Gnash  like to eat and pay bills.</em></strong></span></p></blockquote>
<blockquote style="text-align:justify;"><p><span style="color:#0000ff;"><strong><em>We get a lot of bitching about lack of comparability on some web  sites, but we won&#8217;t get more compatible without your help. And the way  you can help is to contribute funding.</em></strong></span></p></blockquote>
<p style="text-align:justify;">Didn&#8217;t think things were that bad with Gnash, so i decided to make a donation. If you use Gnash please consider donating to <strong><a href="http://www.openmedianow.org/?q=node/32" target="_blank">Open Media Now</a></strong> or individually to the developers, even if you don&#8217;t run Gnash on your computer the project still benefits you.</p>
<p style="text-align:justify;">Gnash enables individual users and companies to control their Flash player instead of Adobe, this is important because people deserve to run software on their computers in freedom, it frees the software from it&#8217;s monopoly so that others can change, improve and adapt the software to their needs.</p>
<p style="text-align:justify;">
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			<media:title type="html">Gnash is broke</media:title>
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		<title>Los 7 video clips mas vergonzosos de la informática</title>
		<link>http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/#comments</comments>
		<pubDate>Wed, 30 Jun 2010 15:38:34 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Misceláneo]]></category>
		<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=789</guid>
		<description><![CDATA[﻿Cuando las empresas son un poco &#8220;muy&#8221; ambiciosas y tratan de ponerse a la moda, sucede que termina en una catástrofe. Aquí están los 7 intentos mas vergonzosos. Fuente IDG.se<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=789&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>﻿Cuando las empresas son un poco &#8220;muy&#8221; ambiciosas y tratan de ponerse a la moda, sucede que termina en una catástrofe. Aquí están los 7 intentos mas vergonzosos.</p>
<p>Fuente <a href="http://www.idg.se/2.1085/1.329970/de-10-pinsammaste-videoklippen-inom-it" target="_blank"><strong>IDG.se</strong></a></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/oiNaadVOQEM/2.jpg" alt="" /></a></span></strong></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/3oGFogwcx-E/2.jpg" alt="" /></a></span></strong></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/11NOblvuEpU/2.jpg" alt="" /></a></span></strong></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/up863eQKGUI/2.jpg" alt="" /></a></span></strong></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/WuXDB7eRiQE/2.jpg" alt="" /></a></span></strong></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/1cX4t5-YpHQ/2.jpg" alt="" /></a></span></strong></p>
<p><strong><span style="text-align:center; display: block;"><a href="http://rafutarbz2.wordpress.com/2010/06/30/los-10-video-clips-mas-vergonzosos-de-la-informatica/"><img src="http://img.youtube.com/vi/AHwsqidorH0/2.jpg" alt="" /></a></span></strong></p>
<p><strong><br />
</strong></p>
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		<title>Skype es un problema</title>
		<link>http://rafutarbz2.wordpress.com/2010/05/11/skype-es-un-problema/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/05/11/skype-es-un-problema/#comments</comments>
		<pubDate>Tue, 11 May 2010 16:30:26 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Politica y Sociedad]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=764</guid>
		<description><![CDATA[Si esperas tener control sobre tu computadora no deberías confiársela a quien no confía en ti. Los desarrolladores de Skype no confían en sus usuarios y por esa razón han introducido funciones espías en el programa para vigilarlos. La lógica es simple: ¿por qué tú deberías confiar en Skype cuando Skype no confía en ti? [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=764&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p style="text-align:justify;"><img class="alignright size-full wp-image-772" title="no_skype-1" src="http://rafutarbz2.files.wordpress.com/2010/05/no_skype-1.png?w=720" alt=""   />Si esperas tener control sobre tu computadora no deberías confiársela a quien no confía en ti. Los desarrolladores de Skype no confían en sus usuarios y por esa razón han introducido <strong><a href="http://www.us.terra.com/tecnologia/interna/0,,OI3230258-EI4128,00.html" target="_blank">funciones espías en el programa para vigilarlos</a></strong>. La lógica es simple: ¿por qué tú deberías confiar en Skype cuando Skype no confía en ti?</p>
<p style="text-align:justify;"><strong><em>&#8220;Skype es un programa privativo de voz-sobre-IP que usa un protocolo  privativo. Skype está seduciendo a los usuarios de software libre a usar  software privativo, generalmente dos usuarios a la vez. No queremos  alentar la creación de un cliente compatible con Skype, sino que en vez  de eso, queremos alentarte a crear, contribuir o promover el uso de  alternativas software libre a Skype, como <a href="http://ekiga.org/" target="_blank">Ekiga</a>, y alentar la adopción y  uso de protocolos de VoIP, video y chat libres como SIP y XMPP/Jingle.&#8221;</em></strong></p>
<p style="text-align:justify;">Fuente <strong><a href="http://www.gigabriones.com/proyectos-de-software-libre-de-alta-prioridad/" target="_blank">Gigabriones</a></strong></p>
<p><strong><br />
</strong></p>
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		<title>Gnash: &#8220;An error occurred, please try again later&#8221;</title>
		<link>http://rafutarbz2.wordpress.com/2010/05/03/an-error-occurred-please-try-again-later/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/05/03/an-error-occurred-please-try-again-later/#comments</comments>
		<pubDate>Mon, 03 May 2010 11:57:58 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=678</guid>
		<description><![CDATA[YouTube had stop playing it&#8217;s movies wen I got a message from Gnash saying: An error occurred, please try again later. So I went to read the the Gnash mailing list hopping to find a solution, and well i did. There&#8217;s a problem with the cookies from YouTube, so in order to make Gnash work [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=678&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><img class="alignright size-full wp-image-688" title="youtube-error" src="http://rafutarbz2.files.wordpress.com/2010/05/youtube-error2.png?w=720" alt=""   /></p>
<p>YouTube had stop playing it&#8217;s movies wen I got a message from Gnash saying: <strong><em>An error occurred, please try again later</em></strong>. So I went to read the the Gnash mailing list<strong><em> </em></strong>hopping to find a solution, and well i did. There&#8217;s a problem with the cookies from YouTube, so in order to make Gnash work in YouTube again you&#8217;ll have to clean the cookies from your browser every time you want to watch a film, or you can simply make the browser reject them from the site.</p>
<p>The way I did it was to install the <a href="https://addons.mozilla.org/en-US/firefox/addon/4703" target="_blank"><strong>Cookie Monster Addon</strong></a> in Firefox and blacklist all the cookies that came from YouTube. Now thing&#8217;s are back to normal and I&#8217;m happy again.</p>
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		<title>Gnash is Awesome!</title>
		<link>http://rafutarbz2.wordpress.com/2010/05/03/gnash-is-awesome/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/05/03/gnash-is-awesome/#comments</comments>
		<pubDate>Mon, 03 May 2010 00:44:38 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Politica y Sociedad]]></category>
		<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=638</guid>
		<description><![CDATA[The Gnash developers have made a terrific job, i mean Woow!, it&#8217;s not even stable yet and player is great, but it&#8217;s more amazing &#8211; as Darth Vader would have said &#8220;Most impressive&#8230;&#8221; &#8211; all the technical work that has been achieved in the development of the player and the legal issues they had have [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=638&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p style="text-align:justify;"><img class="size-full wp-image-644 alignright" title="Gnash" src="http://rafutarbz2.files.wordpress.com/2010/05/gnash_logo.png?w=720" alt=""   />The Gnash developers have made a terrific job, i mean <em>Woow!</em>, it&#8217;s not even stable yet and player is great, but it&#8217;s more amazing &#8211; as Darth Vader would have said <em>&#8220;Most impressive&#8230;&#8221;</em> &#8211; all the technical work that has been achieved in the development of the player and the legal issues they had have to resolve to keep the project completely legal because of patent problems and the DMCA.</p>
<p style="text-align:justify;">One of the things that most amazed me was when i red that <a href="http://www.welcomehome.org/rob.html" target="_blank"><strong>Rob Savoye</strong></a> &#8211; the head leader of the Gnash Project &#8211; spent month&#8217;s reading hex dumps to decipher the <a href="http://www.linux-magazine.com/Online/Blogs/Off-the-Beat-Bruce-Byfield-s-Blog/Gnash-Readies-for-a-push" target="_blank"><strong>RTMP</strong></a> protocol and even found bugs in the original proprietary codec, i mean&#8230; you can&#8217;t get more awesome than that!</p>
<p style="text-align:justify;">If you look at Gnash from a practical point of view it&#8217;s far more superior to it&#8217;s competitor <em>Adobe</em>® <em>Flash</em>®; the developers really put some time resolving security issues (a huge problem in Adobe&#8217;s player), there are also some interesting features like the option to save the stream, take screenshots, turn on the debug mode, know the properties of the movie that is playing, run the player externally, etc. Really some good stuff that can come in handy weather you are average or an advanced user.</p>
<p style="text-align:justify;">As Gnash is still under heavy development it does not play all the Flash embedded movies on the Internet, YouTube works for the most part except for those movies in SWF10, Google Video, Blip.tv, Xhamster (adult site), Megavideo, and others that i can&#8217;t remember right now, work with Gnash, and the compatibility keeps growing with each release.</p>
<p style="text-align:justify;"><em><strong>- So what&#8217;s the problem with </strong></em><strong><em>Adobe</em>® <em>Flash</em>®</strong><em><strong> besides the security holes, it even plays more sites then Gnash.<br />
</strong></em><br />
The security is a a very important issue, but the straight answer is:<strong> it&#8217;s proprietary</strong>.</p>
<p style="text-align:justify;">Quoting <strong><a href="http://drascus.wordpress.com/2010/03/01/gnash-for-flash-freedom/" target="_blank">Drascus</a></strong>: <em>&#8220;You see in the proprietary development model if you have a lot of users there is no real incentive to fix anything. Even if they complain and say they will go elsewhere if you have them locked in you don’t worry&#8221;</em></p>
<p style="text-align:justify;">Well and not to mention that the Adobe version is DRM infected and has the ability to control it&#8217;s users, it&#8217;s also pretty immoral and undemocratic from a political point of view.</p>
<p style="text-align:justify;"><strong><em>- Yeah but I just want to watch videos on the web</em></strong></p>
<p style="text-align:justify;">You won&#8217;t die if you&#8217;re not able to watch a particular Web site, make a sacrifice for your freedom as a computer user. If you&#8217;re not able to see most Flash embedded content on the Web with Gnash you can use applications like <strong><a href="http://code.google.com/p/get-flash-videos/wiki/Installation" target="_blank">get-flash-videos</a></strong>, <a href="http://rtmpdump.mplayerhq.hu/" target="_blank"><strong>rtmpdump</strong></a> and <strong><a href="https://addons.mozilla.org/en-US/firefox/addon/748">GreaseMonkey</a></strong> besides of Gnash to watch them until they get a proper support in Gnash.</p>
<p style="text-align:justify;"><strong><em>- The Gnash development is slow, the player is still buggy and videos won&#8217;t play, I&#8217;m out of here!</em></strong></p>
<p style="text-align:justify;">Complaining wont help, so how can you help? one of the best ways is simply running Gnash, promote it&#8217;s use, make bug reports, donate money or if you&#8217;re a programmer contact the developers, the help can be made at many levels.</p>
<p style="text-align:justify;">So, wanna test Gnash today? get it here  <a href="http://www.gnu.org/software/gnash" target="_blank"><strong>http://www.gnu.org/software/gnash</strong></a></p>
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		<title>Fuck Apple and Adobe</title>
		<link>http://rafutarbz2.wordpress.com/2010/05/02/fuck-apple-and-adobe/</link>
		<comments>http://rafutarbz2.wordpress.com/2010/05/02/fuck-apple-and-adobe/#comments</comments>
		<pubDate>Sun, 02 May 2010 21:10:21 +0000</pubDate>
		<dc:creator>rafu</dc:creator>
				<category><![CDATA[Politica y Sociedad]]></category>
		<category><![CDATA[Tecnologia]]></category>

		<guid isPermaLink="false">http://rafutarbz2.wordpress.com/?p=575</guid>
		<description><![CDATA[Yeah, Apple is pretty rotten and so is Adobe. Recently Apple showed how upset they were towards Adobe in Steve Jobs open letter; &#8220;Shame on you&#8221; Steve Jobs wrote &#8220;you don&#8217;t respect the open Web, your formats are incompatible with our web standards, we no longer use Flash, we think different, we use HTML5&#8230; and [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=rafutarbz2.wordpress.com&amp;blog=8286284&amp;post=575&amp;subd=rafutarbz2&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p style="text-align:justify;"><a href="http://rafutarbz2.files.wordpress.com/2010/05/apple.jpg"><img class="size-full wp-image-577 alignright" title="demonic apple" src="http://rafutarbz2.files.wordpress.com/2010/05/apple.jpg?w=720" alt=""   /></a>Yeah, Apple is pretty rotten and so is Adobe.</p>
<p style="text-align:justify;">Recently Apple showed how upset they were towards Adobe in <strong><a href="http://www.apple.com/hotnews/thoughts-on-flash/" target="_blank">Steve Jobs open letter</a></strong>; <em>&#8220;Shame on you&#8221;</em> Steve Jobs wrote <em>&#8220;you don&#8217;t respect the open Web, your formats are incompatible with <span style="text-decoration:line-through;">our</span> web standards, we no longer use Flash, we think different, we use HTML5&#8230; and by the way, we don&#8217;t like you anymore&#8221;</em>, well he didn&#8217;t literally write that.</p>
<p style="text-align:justify;">The thing here is that it&#8217;s NOT ironic to read this kind of letter from a <strong>proprietary software company</strong>, but it&#8217;s rather about the fact that they&#8217;re not solving any Web interpolarity problems in switching and suggesting the use of HTML5, if that had been the case Mr Jobs would have wrote about making a change to the <a href="http://www.theora.org/" target="_blank"><strong>Ogg Theora</strong></a> video codec. The interpolarity problems on the Web will still persist with Apple&#8217;s H.264 video codec, which can be embedded in HTML5.&#8217;s new video tag The patent holder of H.264 is the MPEG LA in which Apple is a member of. The specs of the H.264 are openly available but the codec itself is NOT freely usable, and the license agreement changes year after year. So when Mr Jobs talks about &#8220;openness&#8221; the word carries and ambiguity.</p>
<p style="text-align:justify;">In the end if people begin to use Apple&#8217;s HTML5 (H.264) video tag they will fall in the same problem as the  <em>Adobe</em>® <em>Flash</em>® users are in right now; <em>Which puppet master gets to control us?</em></p>
<p style="text-align:justify;">Quoting <a href="http://arstechnica.com/apple/news/2010/04/pot-meet-kettle-a-response-to-steve-jobs-letter-on-flash.ars" target="_blank"><strong>John Sullivan</strong></a>: <strong><em>&#8220;Adobe is mad at Apple for not letting Adobe control iPhone, iPad, and iPod Touch users via Flash, and Apple is mad at Adobe for suggesting that Apple is arbitrarily abusing its control over Application Store users.&#8221;</em></strong></p>
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