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	<title>ServerSignature Linux Community Support Blog Page &#187; DNS</title>
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	<description>Linux Server Management &#38; Consulting  Services :  Contact Email - admin@serversignature.com &#124; Web: serversignature.com</description>
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		<title>Fail Open DNS Servers</title>
		<link>http://support.serversignature.com/dns/fail-open-dns-servers/</link>
		<comments>http://support.serversignature.com/dns/fail-open-dns-servers/#comments</comments>
		<pubDate>Mon, 23 Nov 2009 14:27:25 +0000</pubDate>
		<dc:creator>Kiran</dc:creator>
				<category><![CDATA[DNS]]></category>
		<category><![CDATA[OpenDNS]]></category>

		<guid isPermaLink="false">http://support.serversignature.com/?p=117</guid>
		<description><![CDATA[Closing open DNS server. Add the following to your named.conf file. Add the following, replacing mainIP and secondaryIP with your systems nameservers. acl "trusted" { mainIP;secondaryIP;127.0.0.1; }; Example: acl "trusted" { mainIP;secondaryIP;firstserverip;secondserverip;127.0.0.1; }; Only the trusted IP is allowed for certain functions. allow-recursion { trusted; }; allow-notify { trusted; }; allow-transfer { trusted; }; Example: [...]]]></description>
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		<title>OpenDNS is a free DNS resolution service</title>
		<link>http://support.serversignature.com/dns/opendns-is-a-free-dns-resolution-service/</link>
		<comments>http://support.serversignature.com/dns/opendns-is-a-free-dns-resolution-service/#comments</comments>
		<pubDate>Sat, 14 Nov 2009 14:51:57 +0000</pubDate>
		<dc:creator>Kiran</dc:creator>
				<category><![CDATA[DNS]]></category>
		<category><![CDATA[OpenDNS]]></category>
		<category><![CDATA[Proxy]]></category>

		<guid isPermaLink="false">http://support.serversignature.com/?p=104</guid>
		<description><![CDATA[OpenDNS is a free DNS resolution service OpenDNS nameserver IP addresses are: 208.67.220.220 208.67.222.222 Some routers and devices need a third or fourth nameserver IP address. Use these if necessary (identical service to the original two): 208.67.220.222 208.67.222.220 OpenDNS offers DNS resolution for consumers and businesses as an alternative to using their Internet service provider&#8217;s [...]]]></description>
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