Centos – How to fix SOA error: Could not find reverse address for IP

centoscentos6domain-name-systemsoa-record

I have just got to administer a Linux server (CentOS 6.8), where there are a handful of websites hosted.

There sometimes (very rare) is a problem of requesting one of the sites, let's say example.fi. It usually works fine, but sometimes visitors are redirected to the very first website that was ever hosted on this server, let's call it first.com.

I ran the DNS checks on every site hosted there, and the only one that had warnings was example.fi. The exact warnings from pingdom dnscheck are following:

Could not find reverse address for xxx.xxx.xx.xx (xx.xx.xxx.xxx.in-addr.arpa.).

PTR record(s) for the address could not be found in the .arpa-zone. (ip6.arpa. for IPv6 addresses and in-addr.arpa. for IPv4).

How can this be fixed so that the visitors are always redirected to the correct site?

EDIT

The domain name in question is penhouse.fi

Best Answer

  1. If you don't tell us what domain you're having a problem with, we can only give you wild guesses.
  2. DNSCheck is an old, deprecated tool and Pingdom (unless they've hacked it themselves recently) are running an old version of it. The successor to DNSCheck is Zonemaster.
  3. That error cannot give the symptom you describe, so you're on the wrong track.
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