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	<title>Artur Krzywanski &#187; Sysadmin</title>
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	<link>http://www.krzywanski.net</link>
	<description>Yet Another Geek bLog</description>
	<lastBuildDate>Thu, 03 Jun 2010 13:58:11 +0000</lastBuildDate>
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    <title>Artur Krzywanski</title>
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    <link>http://www.krzywanski.net</link>
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		<item>
		<title>Auto association of ec2 elastic IPs on instance launch</title>
		<link>http://www.krzywanski.net/archives/592?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=auto-association-of-ec2-elastic-ips-on-instance-launch</link>
		<comments>http://www.krzywanski.net/archives/592#comments</comments>
		<pubDate>Thu, 03 Jun 2010 13:18:58 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[ec2]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[perl]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=592</guid>
		<description><![CDATA[What a pain is to have to associate elastic IPs when launching Amazon AWS ec2 instances. Think about 15-20 machines which need static (elastic) ip. I solved this problem with a bit of Perl code: First thing You need to do is to have ec2-api-tools installed in /usr/local/ec2/ec2-api-tools and your cert-&#8230;pem and pk-&#8230;.pem file in [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>ec2 + EBS (freezing the machine)</title>
		<link>http://www.krzywanski.net/archives/555?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=ec2-ebs-freezing-the-machine</link>
		<comments>http://www.krzywanski.net/archives/555#comments</comments>
		<pubDate>Mon, 29 Mar 2010 14:48:01 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[debian]]></category>
		<category><![CDATA[ebs]]></category>
		<category><![CDATA[ec2]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[xfs]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=555</guid>
		<description><![CDATA[I had some problems with ec2 and EBS recently when mounting EBS drive with XFS on it. Basically the machine was frozen and only way to get it back was request to detach EBS drive and reboot the ec2 machine, I found a fix here. Here is a working procedure (attaching EBS drive not included): [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/555/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<title>ec2 api tools on Debian Lenny</title>
		<link>http://www.krzywanski.net/archives/546?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=ec2-api-tools-on-debian-lenny</link>
		<comments>http://www.krzywanski.net/archives/546#comments</comments>
		<pubDate>Fri, 26 Mar 2010 11:16:19 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[aws]]></category>
		<category><![CDATA[ec2]]></category>
		<category><![CDATA[java]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=546</guid>
		<description><![CDATA[If you running in problems getting Amazon ec2 API tools on Debian Lenny seeing something like this: user@computer:$ ec2-describe-instancesUnexpected error:javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-emptyat sun.security.ssl.Alerts.getSSLException(Alerts.java:208)at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1611) Here is how to fix it: user@computer:$ apt-get install openjdk-6-jremkdir /tmp/java cd /tmp/javawget http://ftp.de.debian.org/debian/pool/main/c/ca-certificates-java/ca-certificates-java_20100412_all.debar xf ca-certificates-java_20100412_all.debtar -zxvf data.tar.gz cd /usr/lib/jvm/java-6-openjdk/jre/lib/security/ mv cacerts cacerts.PREVIOUS [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Debian Lenny and quota on /home</title>
		<link>http://www.krzywanski.net/archives/461?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=debian-lenny-and-quota-on-home</link>
		<comments>http://www.krzywanski.net/archives/461#comments</comments>
		<pubDate>Tue, 26 Jan 2010 16:39:31 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[All]]></category>
		<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[ext3]]></category>
		<category><![CDATA[lenny]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[quota]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=461</guid>
		<description><![CDATA[There is a small how to here however it describes how to install on / partition. Here are clear instructions for /home. Login as root, do not use sudo, you will not be able to unmount /home partition if you use sudo. Install quota user@computer:$ apt-get install quota Change mount options user@computer:$ vim /etc/fstab And [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/461/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Reinstalling list of GEMs on a new server</title>
		<link>http://www.krzywanski.net/archives/451?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=reinstalling-exactly-the-same-list-of-gems-on-a-new-server</link>
		<comments>http://www.krzywanski.net/archives/451#comments</comments>
		<pubDate>Tue, 26 Jan 2010 11:55:55 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[All]]></category>
		<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[gem]]></category>
		<category><![CDATA[perl]]></category>
		<category><![CDATA[rails]]></category>
		<category><![CDATA[ror]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=451</guid>
		<description><![CDATA[When I have to migrate servers to new OS or reinstall list of gems on another box you can get a quite big list of gems to install. This post will describe how to do it &#8220;admin way&#8221; which basically means that whatever has to be done more than once should be scripted To get [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Nagios check_file_age mod</title>
		<link>http://www.krzywanski.net/archives/429?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=nagios-check_fila_age-mod</link>
		<comments>http://www.krzywanski.net/archives/429#comments</comments>
		<pubDate>Tue, 22 Dec 2009 13:41:25 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[nagios]]></category>
		<category><![CDATA[perl]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=429</guid>
		<description><![CDATA[As I don&#8217;t think in seconds about time and more like hours days etc. I&#8217;ve added this small bit of code to Nagios check_file_age script to display age in days. I&#8217;m using this to check PID file age for service that needs daily/weekly restarts. By default you will get something like this: FILE_AGE CRITICAL: /var/run/server.pid [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/429/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Capistrano and rake process in the background</title>
		<link>http://www.krzywanski.net/archives/397?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=starting-rake-process-in-background-using-capistrano</link>
		<comments>http://www.krzywanski.net/archives/397#comments</comments>
		<pubDate>Mon, 30 Nov 2009 13:23:24 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=397</guid>
		<description><![CDATA[This is useful for Capistrano deployments when you need to start rake process which doesn&#8217;t run as daemon. When you start daemons you will usually do this: task :start_app, :roles =&#62; :app_servers do &#160; &#160; &#160; &#160; run &#34;export RAILS_ENV=production &#38;&#38; cd #{deploy_to}/current/ &#38;&#38;/usr/local/bin/rake app:start&#34; end This may hold Capistrano session and prevent Capistrano to [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/397/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Ubuntu 9.04 server + PHP5 + FCGI</title>
		<link>http://www.krzywanski.net/archives/343?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=ubuntu-9-04-server-php5-fcgi</link>
		<comments>http://www.krzywanski.net/archives/343#comments</comments>
		<pubDate>Mon, 05 Oct 2009 14:39:52 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[cgi]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[ubuntu]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=343</guid>
		<description><![CDATA[If you want to run Apache with mod_worker you will have to us PHP via FCGI. Here is how to install it on Ubuntu 9.04 Server edition. Install required software user@computer:$ apt-get install php5-cgi php5 libapache2-mod-fcgid Add handler for PHP user@computer:$ vim /etc/apache2/conf.d/php5-fastcgi add following lines: AddHandler fcgid-script .php FCGIWrapper /usr/lib/cgi-bin/php5 .php On Debian Lenny [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/343/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Installing memcached and libmemcache on Debian</title>
		<link>http://www.krzywanski.net/archives/334?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=installing-memcached-and-libmemcache-on-debian</link>
		<comments>http://www.krzywanski.net/archives/334#comments</comments>
		<pubDate>Wed, 30 Sep 2009 15:27:39 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[debian]]></category>
		<category><![CDATA[libmemecached]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[memcached]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=334</guid>
		<description><![CDATA[memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. To use it with C++ apps you also need libmemcached which is client library to the memcached server. It has been designed to be light on memory usage, thread [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/334/feed</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Ruby On Rails in Debain/Ubuntu and missing zlib</title>
		<link>http://www.krzywanski.net/archives/321?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=ruby-on-rails-in-debainubuntu-and-missing-zlib</link>
		<comments>http://www.krzywanski.net/archives/321#comments</comments>
		<pubDate>Wed, 23 Sep 2009 12:01:44 +0000</pubDate>
		<dc:creator>Artur</dc:creator>
				<category><![CDATA[Sysadmin]]></category>
		<category><![CDATA[gem]]></category>
		<category><![CDATA[rails]]></category>
		<category><![CDATA[ror]]></category>
		<category><![CDATA[ruby]]></category>
		<category><![CDATA[zlib]]></category>

		<guid isPermaLink="false">http://www.krzywanski.net/?p=321</guid>
		<description><![CDATA[There is a known problem with ruby on Debian or Ubuntu with gem command not working properly.&#160; Here is how to fix it. Update: &#8211;with-openssl option don&#8217;t exist in ruby-1.8.6-p399 So here is how to install RoR from source: user@computer:$ cd /usr/local/srcwget ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p388.tar.gztar -zxf ruby-1.8.6-p388.tar.gzcd ruby-1.8.6-p388./configure --with-opensslmakemake installcd .. install ruby gems user@computer:$ wget http://rubyforge.org/frs/download.php/60718/rubygems-1.3.5.tgztar [...]]]></description>
		<wfw:commentRss>http://www.krzywanski.net/archives/321/feed</wfw:commentRss>
		<slash:comments>0</slash:comments>
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