Sign up ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

I've two servers running, one is a webserver and it's A record on my (external) DNS provider is in the form of: in A XXX.XX.XXX.171

The other is a mailserver and it's A record is in the form: in A XXX.XX.XXX.170

and it's mx record is in the form: in MX 10

How should my DNS reverse (i.e. my ISP provider) resolve: or

BTW, this is how my /etc/hosts file looks like: mail
::1 mail

Thanks in advance for all the help

share|improve this question

2 Answers 2

up vote 4 down vote accepted

Have both of them matched exactly. i.e.

171 IN PTR
170 IN PTR

In fact you can just copy and paste that to your ISP; that's exactly how it will look in their bind (DNS server) configuration.

share|improve this answer
Thanks very much. In fact did it, seems like it gonna take a while to process everything. – Bruno Vieira Oct 17 '12 at 23:27

You want the reverse DNS record to be for

share|improve this answer
Thanks for the answer – Bruno Vieira Oct 17 '12 at 23:15

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.