Nslookup

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Nslookup.exe is a tool for testing and troubleshooting DNS servers.

Example

To query for the Chicagotech.net MX record, type the following:
   C:\> nslookup
   Default Server: ns1.domain.com
   Address: x.x.153.103
   > set q=mx
   > chicagotech.net

Troubleshooting Nslookup.exe

1. *** Can't find server name for address w.x.y.z: Timed out

Cause: 1. the DNS server cannot be reached.

2. the DNS record has not been updated.

3. the service is not running on that computer.

2. *** Can't find server name for address 127.0.0.1: Timed out

Cause: no servers have been defined in the DNS Service Search Order list

3. *** Can't find server name for address w.x.y.z: Non-existent domain

Cause: there is no PTR record for the name server's IP address.

4.*** ns.domain.com can't find child.domain.com.: Non-existent domain

5. *** Can't list domain child.domain.com.: Non-existent domain

Cause: No separate db file for the domain, thus querying that domain or running a zone transfer on it will produce the above errors.

Nslookup receive non-authoritative answer

As you can see, it is correct in the nslookup (192.1.1.53). ... nslookup > yahoo.com. (notice the period at the end of it?) ...
www.chicagotech.net/Q&A/nslookup1.htm

Nslookup

Nslookup.exe is a tool for testing and troubleshooting DNS servers. Example. To query for the Chicagotech.net MX record, type the following: C:\> nslookup ...
www.chicagotech.net/nslookup.htm

Troubleshooting DNS

If you have no DNS server configured on your client, Nslookup will. default to ... A: You can use the NSLookup tool to verify that DNS entries are correctly ...
www.chicagotech.net/dnstroubleshooting.htm

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