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<channel>
	<title>Yak Shaving</title>
	<atom:link href="http://www.asteriosk.gr/blog/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.asteriosk.gr/blog</link>
	<description>A technical blog &#38; notepad by</description>
	<lastBuildDate>Sun, 29 Nov 2009 11:23:35 +0000</lastBuildDate>
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			<item>
		<title>Passing Kerberos TGT (ticket-granting ticket) to remote hosts with ssh</title>
		<link>http://www.asteriosk.gr/blog/2009/11/18/passing-kerberos-tgt-ticket-granting-ticket-to-remote-hosts-withopenssh/</link>
		<comments>http://www.asteriosk.gr/blog/2009/11/18/passing-kerberos-tgt-ticket-granting-ticket-to-remote-hosts-withopenssh/#comments</comments>
		<pubDate>Wed, 18 Nov 2009 13:50:51 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/blog/?p=414</guid>
		<description><![CDATA[Kerberos uses tickets to grant access to resources on a Kerberos-enabled computer. If you want to login (via SSH) to a remote host and you don&#8217;t want to re-execute the kinit command after you login, you can just forward your ticket with your ssh client. Two steps are needed to do this &#8211; given that [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/11/18/passing-kerberos-tgt-ticket-granting-ticket-to-remote-hosts-withopenssh/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Google&#8217;s support for RDFa and Microformats</title>
		<link>http://www.asteriosk.gr/blog/2009/10/19/googles-support-for-rdfa-and-microformats/</link>
		<comments>http://www.asteriosk.gr/blog/2009/10/19/googles-support-for-rdfa-and-microformats/#comments</comments>
		<pubDate>Mon, 19 Oct 2009 14:53:52 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Databases]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Web Servers]]></category>
		<category><![CDATA[google]]></category>
		<category><![CDATA[microformats]]></category>
		<category><![CDATA[rdfa]]></category>
		<category><![CDATA[w3c]]></category>
		<category><![CDATA[yahoo]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=399</guid>
		<description><![CDATA[Google has announced that their search engine is going to support enhanced searching in web pages, by using RDFa and Microformats embedded in XHTML. Google states that the extra (structured) data will be used in order to get results for Product Reviews (e.g. CNET Reviews), Products (e.g. Amazon product pages), People (e.g. LinkedIn profiles) and [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/10/19/googles-support-for-rdfa-and-microformats/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Merging multiple Lucene indexes</title>
		<link>http://www.asteriosk.gr/blog/2009/03/31/merging-multiple-lucene-indexes/</link>
		<comments>http://www.asteriosk.gr/blog/2009/03/31/merging-multiple-lucene-indexes/#comments</comments>
		<pubDate>Tue, 31 Mar 2009 09:44:01 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Programming]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Java]]></category>
		<category><![CDATA[Lucene]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=312</guid>
		<description><![CDATA[<a rel="attachment wp-att-313" href="http://www.asteriosk.gr/wp-content/uploads/2009/03/lucene_green_300.gif"><img class="size-full wp-image-313 alignright" title="Apache Lucene Logo" src="http://www.asteriosk.gr/wp-content/uploads/2009/03/lucene_green_300.gif" alt="Apache Lucene Logo" width="300" height="46" /></a>This is the code that I  use to merge multiple <a title="Apache Lucene" href="http://lucene.apache.org" target="_blank">Lucene</a> indexes into one. There are many reasons to merge multiple indexes into one like:
<ul>
<ul>
	<li><strong>Speed</strong></li>
	<li>Ease of management</li>
	<li>Space - the size of the merged index is less than the sum of non-merged indexes</li>
</ul>
</ul>]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/03/31/merging-multiple-lucene-indexes/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>Installing MacTex and TeXlipse on Mac OS X</title>
		<link>http://www.asteriosk.gr/blog/2009/02/25/installing-mactex-and-texlipse-on-mac-os-x/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/25/installing-mactex-and-texlipse-on-mac-os-x/#comments</comments>
		<pubDate>Tue, 24 Feb 2009 22:49:03 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Authoring]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[eclipse]]></category>
		<category><![CDATA[latex]]></category>
		<category><![CDATA[mac os x]]></category>
		<category><![CDATA[MacTex]]></category>
		<category><![CDATA[tex]]></category>
		<category><![CDATA[TeXclipse]]></category>
		<category><![CDATA[TexShop]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=231</guid>
		<description><![CDATA[TeXlipse is an Eclipse Plugin that allows you to have control of your Tex files, compile them, and convert them to PDF. It runs through Eclipse and its very easy to use. Using Eclipse as a tool for Tex is nice because you can use all the other Eclipse&#8217;s tools to be more productive(CVS, SVN, [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/25/installing-mactex-and-texlipse-on-mac-os-x/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Run your own OpenID server &#8211; Installing Prairie on lighttpd</title>
		<link>http://www.asteriosk.gr/blog/2009/02/22/run-your-own-openid-server-installing-praire-on-lighttpd/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/22/run-your-own-openid-server-installing-praire-on-lighttpd/#comments</comments>
		<pubDate>Sun, 22 Feb 2009 16:51:07 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[Web Servers]]></category>
		<category><![CDATA[lighttpd]]></category>
		<category><![CDATA[MySQL]]></category>
		<category><![CDATA[openID]]></category>
		<category><![CDATA[Prairie]]></category>
		<category><![CDATA[web server]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=208</guid>
		<description><![CDATA[I am sure that you have heard about OpenID. OpenID is an open, decentralized, free framework for user-centric digital identity. That means that you only need only one username in order to be able to login into many sites that support OpenID. Yahoo!, Google, Microsoft and many many others have expressed support and are already [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/22/run-your-own-openid-server-installing-praire-on-lighttpd/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>SSH Tunneling to redirect requests from a local port to a remote one</title>
		<link>http://www.asteriosk.gr/blog/2009/02/20/ssh-tunneling-to-redirect-requests-from-a-local-port-to-a-remote-one/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/20/ssh-tunneling-to-redirect-requests-from-a-local-port-to-a-remote-one/#comments</comments>
		<pubDate>Fri, 20 Feb 2009 15:46:51 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[port forwarding]]></category>
		<category><![CDATA[ssh]]></category>
		<category><![CDATA[tunnel]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=203</guid>
		<description><![CDATA[Suppose that you want to access a remote port in a machine that runs a service on port 3306. Also suppose that the remote machine has restricted access to that port only for requests coming from the host &#8220;localhost&#8221;. You will have to create a tunnel to that machine and tunnel all your requests from [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/20/ssh-tunneling-to-redirect-requests-from-a-local-port-to-a-remote-one/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>PTY allocation request failed on channel 0</title>
		<link>http://www.asteriosk.gr/blog/2009/02/20/pty-allocation-request-failed-on-channel-0/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/20/pty-allocation-request-failed-on-channel-0/#comments</comments>
		<pubDate>Fri, 20 Feb 2009 08:40:48 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Web Servers]]></category>
		<category><![CDATA[apache]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[lighttpd]]></category>
		<category><![CDATA[openVZ]]></category>
		<category><![CDATA[VPS]]></category>
		<category><![CDATA[XEN]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=196</guid>
		<description><![CDATA[Yesterday, I was trying to login to my machine and I got the following message:

PTY allocation request failed on channel 0

My prompt was stuck and I could not enter commands. This happened because -for some reason- the tty related devices(/dev/ptmx, /dev/pts) were not created or mounted on my machine. In order to get this problem [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/20/pty-allocation-request-failed-on-channel-0/feed/</wfw:commentRss>
		<slash:comments>18</slash:comments>
		</item>
		<item>
		<title>Installing WP Super Cache with lighttpd</title>
		<link>http://www.asteriosk.gr/blog/2009/02/19/installing-wp-super-cache-with-lighttpd/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/19/installing-wp-super-cache-with-lighttpd/#comments</comments>
		<pubDate>Thu, 19 Feb 2009 00:15:37 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[caching]]></category>
		<category><![CDATA[lighttpd]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[lua]]></category>
		<category><![CDATA[mod_magnet]]></category>
		<category><![CDATA[mod_rewrite]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[web server]]></category>
		<category><![CDATA[wordpress]]></category>
		<category><![CDATA[wp super cache]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=144</guid>
		<description><![CDATA[Trying to get WP Super Cache &#038; Wordpress working on my fast lighttpd server, I came into problems, mainly because of lighttpd&#8217;s lack of (Apache&#8217;s version of) the mod_rewrite module. The static files that were created from the cache were not statically served from wordpress. The problem is that in order to use them, the [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/19/installing-wp-super-cache-with-lighttpd/feed/</wfw:commentRss>
		<slash:comments>15</slash:comments>
		</item>
		<item>
		<title>Tethereal command line notes</title>
		<link>http://www.asteriosk.gr/blog/2009/02/15/tethereal-command-line-notes/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/15/tethereal-command-line-notes/#comments</comments>
		<pubDate>Sun, 15 Feb 2009 01:32:11 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[networking]]></category>
		<category><![CDATA[tethereal]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=119</guid>
		<description><![CDATA[Exclude host 10.16.21.206 from sniffing AND resolve hostnames

tethereal -N n -f &#039;host not 10.16.21.206&#039;

]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/15/tethereal-command-line-notes/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Some useful Redhat Package Manager(RPM) commands</title>
		<link>http://www.asteriosk.gr/blog/2009/02/15/some-useful-redhat-package-managerrpm-commands/</link>
		<comments>http://www.asteriosk.gr/blog/2009/02/15/some-useful-redhat-package-managerrpm-commands/#comments</comments>
		<pubDate>Sun, 15 Feb 2009 01:17:50 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[query]]></category>
		<category><![CDATA[RPM]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=111</guid>
		<description><![CDATA[Getting the dependencies of a file:

rpm -q --requires -p package.rpm

Formating the query result of RPM database

rpm -qa –queryformat &#039;[&#34;_%{NAME}&#34;,list(&#34;%{VERSION}-%{RELEASE}&#34;,&#34;%{ARCH}&#34;),\n]&#039;

Result:

“_openssh”,list(”3.6.1p2-33.30.6″,”i386″),
“_XFree86-Mesa-libGLU”,list(”4.3.0-97.EL”,”i386″),
…

Display a file-per-package list

rpm -qa --queryformat &#039;[%{NAME}\t%{FILENAMES}\n]&#039;

Result:

kernel-smp             /lib/modules/2.6.9-67.0.20.ELsmp/kernel/sound/pci/snd-atiixp-modem.ko
kernel-smp             /lib/modules/2.6.9-67.0.20.ELsmp/kernel/sound/pci/snd-atiixp.ko
kernel-smp     [...]]]></description>
		<wfw:commentRss>http://www.asteriosk.gr/blog/2009/02/15/some-useful-redhat-package-managerrpm-commands/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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