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	<title>k3mist™ &#187; postfix</title>
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		<title>Limit the amount of connections to any port with iptables</title>
		<link>http://k3mist.com/linux/limit-the-amount-of-connections-to-any-port-with-iptables/</link>
		<comments>http://k3mist.com/linux/limit-the-amount-of-connections-to-any-port-with-iptables/#comments</comments>
		<pubDate>Sat, 13 Nov 2010 21:40:26 +0000</pubDate>
		<dc:creator>k3mist</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[connection limit]]></category>
		<category><![CDATA[ddos]]></category>
		<category><![CDATA[iptables]]></category>
		<category><![CDATA[mail server]]></category>
		<category><![CDATA[port]]></category>
		<category><![CDATA[postfix]]></category>

		<guid isPermaLink="false">http://k3mist.com/?p=316</guid>
		<description><![CDATA[This morning we had a DDOS attack on our mail server. Some @$$ trying to swamp our postfix service with hundreds of connections. SO, I did something I did not want to do, but, oh well. This following bit below will explain a few things and will allow you to limit the amount of active [...]]]></description>
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		<title>Postfix catch-all. The proper way&#8230;</title>
		<link>http://k3mist.com/linux/posix-catch-all-the-proper-way/</link>
		<comments>http://k3mist.com/linux/posix-catch-all-the-proper-way/#comments</comments>
		<pubDate>Wed, 26 Aug 2009 16:34:44 +0000</pubDate>
		<dc:creator>k3mist</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[postfix]]></category>
		<category><![CDATA[postfix catch-all]]></category>

		<guid isPermaLink="false">http://k3mist.com/?p=172</guid>
		<description><![CDATA[An issue I recently encountered with some mail servers was poor MTA reputation. Even though the servers were only used for corporate email, somehow their MTA is poor at senderbase, even though none of the IP&#8217;s are on a single RBL/SBL. This is partly due to Slicehost having bad IP blocks and the method they [...]]]></description>
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