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	<title>Yak Shaving &#187; Linux</title>
	<atom:link href="http://blog.asteriosk.gr/category/linux/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.asteriosk.gr</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://blog.asteriosk.gr/2009/11/18/passing-kerberos-tgt-ticket-granting-ticket-to-remote-hosts-withopenssh/</link>
		<comments>http://blog.asteriosk.gr/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://blog.asteriosk.gr/2009/11/18/passing-kerberos-tgt-ticket-granting-ticket-to-remote-hosts-withopenssh/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Run your own OpenID server &#8211; Installing Prairie on lighttpd</title>
		<link>http://blog.asteriosk.gr/2009/02/22/run-your-own-openid-server-installing-praire-on-lighttpd/</link>
		<comments>http://blog.asteriosk.gr/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://blog.asteriosk.gr/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://blog.asteriosk.gr/2009/02/20/ssh-tunneling-to-redirect-requests-from-a-local-port-to-a-remote-one/</link>
		<comments>http://blog.asteriosk.gr/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://blog.asteriosk.gr/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://blog.asteriosk.gr/2009/02/20/pty-allocation-request-failed-on-channel-0/</link>
		<comments>http://blog.asteriosk.gr/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://blog.asteriosk.gr/2009/02/20/pty-allocation-request-failed-on-channel-0/feed/</wfw:commentRss>
		<slash:comments>23</slash:comments>
		</item>
		<item>
		<title>Tethereal command line notes</title>
		<link>http://blog.asteriosk.gr/2009/02/15/tethereal-command-line-notes/</link>
		<comments>http://blog.asteriosk.gr/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://blog.asteriosk.gr/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://blog.asteriosk.gr/2009/02/15/some-useful-redhat-package-managerrpm-commands/</link>
		<comments>http://blog.asteriosk.gr/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://blog.asteriosk.gr/2009/02/15/some-useful-redhat-package-managerrpm-commands/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Faking a windows dhcp server with dhcp-client-identifier</title>
		<link>http://blog.asteriosk.gr/2009/02/15/faking-a-windows-dhcp-server-with-dhcp-client-identifier/</link>
		<comments>http://blog.asteriosk.gr/2009/02/15/faking-a-windows-dhcp-server-with-dhcp-client-identifier/#comments</comments>
		<pubDate>Sun, 15 Feb 2009 01:13:40 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[dhclient]]></category>
		<category><![CDATA[dhcp]]></category>
		<category><![CDATA[IP]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=107</guid>
		<description><![CDATA[Windows DHCP server, require (that the DHCP client will send) the client’s dhcp identifier in order to give an IP to a machine that just entered the network. This leads to problems when there are linux clients that request IP adresses from Windows DHCP servers(Windows server 2003 or 2008). This happens because, by default,  [...]]]></description>
		<wfw:commentRss>http://blog.asteriosk.gr/2009/02/15/faking-a-windows-dhcp-server-with-dhcp-client-identifier/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Enabling Greek(Ελληνικά) on Asus WL500gP</title>
		<link>http://blog.asteriosk.gr/2009/02/15/enabling-greek%ce%95%ce%bb%ce%bb%ce%b7%ce%bd%ce%b9%ce%ba%ce%ac-on-asus-wl500gp/</link>
		<comments>http://blog.asteriosk.gr/2009/02/15/enabling-greek%ce%95%ce%bb%ce%bb%ce%b7%ce%bd%ce%b9%ce%ba%ce%ac-on-asus-wl500gp/#comments</comments>
		<pubDate>Sun, 15 Feb 2009 00:59:17 +0000</pubDate>
		<dc:creator>Asterios Katsifodimos</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[fix]]></category>
		<category><![CDATA[greek]]></category>
		<category><![CDATA[router]]></category>
		<category><![CDATA[samba3]]></category>
		<category><![CDATA[windows shares]]></category>
		<category><![CDATA[wl500gP]]></category>
		<category><![CDATA[ελληνικά]]></category>

		<guid isPermaLink="false">http://www.asteriosk.gr/?p=93</guid>
		<description><![CDATA[This is done in irder to get Greek filenames working in my wonderful Asus WL500gP router. I use samba3 and Oleg&#8217;s firmware.
For Greek(Ελληνικά) filenames the correct steps are the following:

nvram set usb_vfat_options=defaults,utf8
nvram set usb_smbcpage_x=737
nvram set usb_smbcset_x=1253
nvram commit

and the contents of my smb.conf:

[global]
workgroup = WORKGROUP
guest account = admin
security = share
browseable = yes
writeable = yes
guest ok = [...]]]></description>
		<wfw:commentRss>http://blog.asteriosk.gr/2009/02/15/enabling-greek%ce%95%ce%bb%ce%bb%ce%b7%ce%bd%ce%b9%ce%ba%ce%ac-on-asus-wl500gp/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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