nslookup

[Shekhar Bose]

When I do a nslookup I get the following error message.
Pls advice.
Can't find server name for address 1.2.3.4: Non-existent
domain
Thanx in advance

 

[Marc Reynolds [MSFT]]

This error occurs when there is no PTR record for the name server's IP
address. When Nslookup.exe starts, it does a reverse lookup to get the name
of the default server. If no PTR data exists, this error message is
returned. To correct make sure that a reverse lookup zone exists and
contains PTR records for the name servers.

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

--

Thanks,
Marc Reynolds
Microsoft Technical Support

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

 

[Noriega]

http://support.microsoft.com/default.aspx?scid=kb;en-us;171789

SYMPTOMS
When you run Nslookup from a command prompt on your Microsoft Windows NT 4.0
Domain Name Service (DNS) server, you receive the following error message:

**** Can't find server name for address x.x.x.x: Non-existent domain
**** Default server is not available
Default Server: UnKnown
Address: x.x.x.x
Where x.x.x.x is the IP address of your DNS server.

NOTE: This problem may occur with other applications as well.
CAUSE
There is a missing or mis-configured PTR record for your DNS server in your
reverse lookup zone. The DNS Manager does not automatically create a PTR
record for your DNS server, even though it may automatically create an "A"
record in your forward zone.
RESOLUTION
To resolve this problem, perform the following steps:
1.. From DNS Manager, open your forward zone.
2.. Right-click on the "A" record for your DNS server, and then click
Delete Record.
3.. Click Yes to confirm the deletion of the "A" record.
4.. Right-click on the forward zone, and then click New Host.
5.. Type the host name of your DNS server and the IP address.
6.. Select the Create Associated PTR Record check box.
7.. Click Add Host, and then click Done.
If you receive an error when you click Add Host, then you may be having a
problem with your reverse lookup zone.

For additional information, please see the following articles in the
Microsoft Knowledge Base:
166753 Microsoft DNS Server Reverse Lookup Error Adding Host Record

162842 DNS with "WINS Reverse Lookup" Fails with Multiple IP Addresses



Noriega

A+, MCP, MCSA

 

[William Stacey]

This can be ignored. PTR records are not required and this warning message
was probably not thought about much when it was written as to how many
people would see that and think something was really wrong with their setup,
when in fact, nothing is wrong. Try netdig.exe at www.mvptools.com. It
has a "nslookup" mode using netdig /i, or can use like dig or gui mode. I
do not display that warning.

 

[Kevin D. Goodknecht [MVP]]

In Shekhar Bose <[email protected]> posted a question
Then Kevin replied below:
: When I do a nslookup I get the following error message.
: Pls advice.
: Can't find server name for address 1.2.3.4: Non-existent
: domain
: Thanx in advance

That just means you don't have a reverse lookup on your IP address for DNS.
If you want the error to go away create a zone and put a PTR record in it
for the DNS server.