 | | | resolving problems.... | resolving problems.... 2004-02-25 - By Carlos Mora
Back
Joe,
Thanks for your reply...
>
>>It looks like the problem is that the lookups are going out UDP. (from a
>>netstat -a) but the responses are not coming back. At least not with the
>>address that is being looked up. The address of the authoritative
>nameserver
>>is what gets returned. (from tehtereal).
>>
>>
>Yes, that sounds correct - your system should then look it up using the
>authoritative address.
It is not looking it up at this point. It times out and fails. I have gone
as far as to change the resolv.conf nameserver entries to include the IP
multiple times and it still times out.
>
>>If I issue a host www.google.com it times out. If I issue a host -T
>>www.google.com it works find and returns the addresses.
>>
>>
>
>If you did an upgrade, you will need to look in /etc for all config
>files named *.rpmsave or *.rpmnew, and reconcile them by hand, since
>there could be something out of whack there.
I have already gone and resolved all the rpmsavs and rpmnews and the problem
still driving me up a wall.
>
>>I am using ipchains and have a router between the machine and the cable
>>modem. I have set both TCP and UDP ports 53 open in both locations.
>>
>>
>FWIW, ipchains emulation is a really bad choice, one of the reasons is
>that it is very inefficient.
>
>Why not use iptables?
I will give it a shot. But I want to get this issue fixed before I introduce
more variables into the picture.
Can you think of any other configuration info that might cause this kind of
problem? I have covered everything that I can think of. Short of going in
and rebuilding Bind, which has the resolver libraries.
Thanks,
Carlos
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