DNS reverse lookup problem

Kevin Darcy kcd at daimlerchrysler.com
Tue Apr 12 21:59:52 UTC 2005


biffta wrote:

>I recently setup a DNS server on suse 9.2. I haev been testing it so
>far to resolve local hosts and foward requests to other DNS for
>internet resolution. All is well and it works a treat however there is
>a problem. When trying a nslookup from a windows client, an initial
>error message is displayed complaining the the DNS server does itself
>not have a hostname.
>CODE
>*** Can't find server name for address 192.0.0.62: Server failed
>I searched around a little bit for this error and believe it was being
>caused as the DNS needed a reverse lookup entry for itself.
>So...I created one. Alas now when I perform the nslookup i still get
>the same error.
>
>I know nslookup is outdated but the error I believe is with the DNS
>server, and so needs fixing. I also believe that no external sources
>are being contacted when nslookup is performed and therefore the
>problem can be fixed locally.
>
>Here is the my default zone info for DNS,
>var/lib/named/master/myhost.co.uk
>CODE
>$TTL 2d
>@               IN SOA          hostname.        root.hostname. (
>                               2005040801     ; serial
>                               3h             ; refresh
>                               1h             ; retry
>                               1w             ; expiry
>                               1d )           ; minimum
>
>myhost.co.uk.    IN NS           hostname
>host-1         IN A            192.0.0.61
>host-2         IN A            192.0.0.62
>.
>.
>.
>And here is my zone info for the reverse lookups
>
>var/lib/named/master/0.0.192.in-addr.arpaX
>CODE
>$TTL 2d
>@               IN SOA          localhost.      root.localhost. (
>                               2005040801     ; serial
>                               3h             ; refresh
>                               1h             ; retry
>                               1w             ; expiry
>                               1d )           ; minimum
>
>62              IN PTR          host-2.myhost.co.uk.
>myhost.co.uk.    IN NS           host-2.myhost.co.uk.
>
>I would GREATLY appreciate any help!
>
It's hard to troubleshoot when everything is "anonymized" like that.

Try running named-checkzone on your zone files, and named-checkconf on 
your named.conf file. Also, look in the logs for any error messages.

If you *must* use nslookup, at least use the debug flag to see what it's 
really doing.

                                                                         
                                    - Kevin




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