Re: OpenDKIM problems with Postfix

From: Andreas Schulze <sca_at_andreasschulze.de>
Date: Fri, 26 Oct 2012 09:46:18 +0200

Am Do, 25.10.2012, 22:56 schrieb Steve Jenkins:
> The first line of your /etc/hosts file should read:
>
> 127.0.0.1 hostname.example.com hostname localhost.localdomain localhost
I disagree

Assumed, the first lan interface has an address 192.0.2.1.
That will be the "primary" address of the host exposed to the network.

You will setup an PTR record in dns:
  1.2.0.192.in-addr.arpa. PTR your_hostname.example.com

You will add an A record:
  your_hostname.example.com A 192.0.2.1

so write in /etc/hosts:
192.0.2.1 your_hostname.example.com

delete any line telling your_hostname.example.com is 127.0.0.*

Rule:
any ip address belonging to a host should be resolvable *at the host itself*
(with ping for example) also in case of a failed network link.

Andreas
Received on Fri Oct 26 2012 - 07:46:33 PST