nslookup problem

[Carisma]

Hi,
When I run nslookup command prompt from every client it
says unknown server name but it get the Ip address of dns
server and clint's ip address and name.I don't have
reverse lookup zone then I try to test the DNS by the name
of client.
It is only a local DNS server,my domain is w2k,all of my
clients are w2k pro,my dns server and the main root DC are
same,there is no error message on eventlog of this DC.
Questions:
1- what's the problem
2- Is it very important to have reverse lookup zone?
So much thanks for your usefull information.
Regards

 

[Herb Martin]

Hi,
When I run nslookup command prompt from every client it
says unknown server name but it get the Ip address of dns
server and clint's ip address and name.I don't have
reverse lookup zone then I try to test the DNS by the name
of client.

Questions:
1- what's the problem

Nothing really -- your DNS server just doesn't have an accessible
reverse record.

It is just an artifact of NSLookup that is irrelevant (for most purposes) if
your actual lookup request is resolving as you expect.

2- Is it very important to have reverse lookup zone?

No, almost never.

Everyone worries about it at first -- you can safely ignore it when
resolving
"other" stuff.

 

[Thomas Iwang]

You just need to create a "in-arpa" zone on your DNS
server for the zone in which that DNS server is to allow
it make an reverse PTR record query. This is to resolve
the IP addresse (addresse of the DNS server) into an
server-name - therefore is it just "unknown"

kind regards
Thomas Iwang

 

[Marc Reynolds [MSFT]]

Just to add a couple of documents to what the others have said, see:

200525 Using NSlookup.exe
http://support.microsoft.com/?id=200525

242906 "DNS Request Timed Out" Error Message When You Start Nslookup From a
http://support.microsoft.com/?id=242906

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.
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