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Old 02-27-2009, 03:44 AM   #1
wackolacko
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Setup RDNS


I have a server running Centos with cpanel and couple of site already running. E-mail sent from server kept bouncing back cause of no rdns. Can you some show step by step how to setup rdns without breaking anything especially cpanel.

thank you
 
Old 02-28-2009, 03:11 PM   #2
chort
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Registered: Jul 2003
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Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
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You have to make the request to your service provider. Tell them which hostname should match each of your IPs for reverse DNS.
 
Old 03-01-2009, 12:30 AM   #3
wackolacko
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my provider don't over DNS i have to run my own dns, will they do rdns ?

thank you
 
Old 03-01-2009, 02:21 AM   #4
chort
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They own the IP, so they own the reverse DNS space. It's possible (although very unlikely) that they have delegated it to you. You can find out what DNS server is supposed to have your reverse DNS entries by doing dig -x <ip address>. The AUTHORITY SECTION: will contain the nameservers responsible for your IP.

You own the forward DNS because you own the domain name, but IP addresses aren't bought the same way as domain names. They belong to the provider in the vast majority of cases.

Last edited by chort; 03-01-2009 at 02:22 AM.
 
  


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