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Re: DNS resolver decided to ignore my DNS

I have now removed the two name servers of my ISP from resolve.conf and now, two of the domains work, that is to say they get resolved in the local private namespace. The third domain (myotherdomain.net) still resolves to the public IP address after a siginifcant delay, which indicates that my name server went out and asked some place else.

It seems that for some reason one of the name servers of my ISP (on place two and three) in the list has taken preference and I remember to have stumbled into that a looooong time before. The question now is how can I automate the process to let my own name server take precedence after whatever incident may lead to another server taking precedence ? Any ideas ?

Then still, on the question of why the .net domain doesn't resolve to the local namespace, I am simply clueless. I checked its zone file again and it is essentially the very same zone file as for the other domains, with the difference that the domain name is different. Any ideas ?

thanks
regards
benjamin


On Wednesday, July 31, 2002, at 11:05 , Benjamin wrote:

Hi

I am running a small LAN behind a NAT router with one public IP address being shared.

One of the machines behind the NAT is a G4 with OSX Server 10.1.4 (10.1.5 update) and I host email and www for three domains on it.

Relevant traffic is forwarded by way of portmapping by the router to the G4.

In order to allow for the use of the domain names also behind the NAT, I have set up my own DNS on the G4 to translate the domains into local private addresses.

This worked perfect for the last three or four days and now all of a sudden, none of the names resolve into their local private addresses anymore when using the resolver. nslookup is fine, but not the resolver. for example ...

% nslookup g4
returns g4.mydomain.com at 192.168.0.2

% nslookup myotherdomain.com
returns myotherdomain.com at 192.168.0.2

but

% ping g4
will return 'unknown host'

% ping mydomain
sends ICMPs to mydomain (public IP address)

% ping mydomain
sends ICMPs to myotherdomain (public IP address)

which in both cases goes to the NAT router, as port mapping only works inbound.

hostname is set to mydomain.com

resolv.conf contains ...
search mydomain.com
192.168.0.2
<followed by my ISP's nameservers>

where 192.168.0.2 is the g4 which runs my DNS

It would seem that the resolver (other than nslookup) doesn't bother to query my own DNS anymore, but I have no idea why that is.

I checked the zone files and named.conf, even rebooted a few times -- but to no avail

Can anyone point me in the right direction ?
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 >DNS resolver decided to ignore my DNS (From: Benjamin <email@hidden>)



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