Correct way to setup reverseDNS entries for BIND?

tiff2342

Well-Known Member
Apr 20, 2012
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Root Administrator
Code:
FAIL: Found reverse DNS entries which don't resolves
IP-IP-IP-IP.HOST.DOMAIN.TLD → ???
All IP's reverse DNS entries should resolve back to IP address (MX record's name -> IP -> IP Reverse -> IP). Many mail servers are configured to reject e-mails from IPs with inconsistent reverse DNS configuration.
I found this:
Configuring Reverse DNS for BIND

But I am a little confused. Am I creating a file called <MYIPBACKWARDS>.in-addr.arpa under /var/named/?

Do I have to do this on all my nameservers?
 

dalem

Well-Known Member
PartnerNOC
Oct 24, 2003
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First you need to control your IP space either by a direct allocation from a RIR or you provider has given you access to your Ip allocation via your ASN or pointed them to your name servers.

xx.xxx.xxx.in-addr.arpa zones have nothing to do with name servers the names servers that control the reverses zone must br pointed to your ip space . The xxx.xxx.xxx.in-addr.arpa zone is for setting up reverse PTR
IE: 1.xx.xxx.xxx.in-addr.arpa PTR somehost.com


If your asking these questions its likely that you do not control your ip space your provider does. you will need them to set up your reverse PTR's
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
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Hello :)

Yes, if you are a VPS customer, it's likely they will have to configure the RDNS record for you. Contact them to let them know your previous request has not been configured.

Thank you.