DNS Host - who is it?

[Ansgar Burchardt]

Hi,

John <John at DMJ-Consultancy.co.uk> writes:
>> The DNS server is listed in /etc/resolv.conf, other information received
>> from the DHCP server is in /var/lib/dhcp/dhclient.* (though this may
>> depend on which DHCP client you are using).
>>   
> Thanks, Ansgar. I've checked the following files between two of my
> Ubuntu portables (one works and the other doesn't, and both use the
> same DHCP server!)
>
> hosts, resolve.conf, dhclient*, host.conf, hostname, hosts.allow, hosts.deny
>
> Apart, obviously, from the local laptop's own name, the files are 
> identical and reference the correct nameserver and search domain.

What do the `host' or `dig' utilities say if you try to resolve a
host name on the non-working computer?

You can also call them with a nameserver they should use (but this
shouldn't necessary if resolv.conf contains the correct nameserver):
 $ host [hostname] [dns server]
 $ dig [hostname] @[dns server]

Did you try resolving the full host name (e.g. myhost.example.com) or
just the first part (e.g. myhost)?

Regards,
Ansgar

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