DNS problem

[dvkadam]

We have set up DNS server on Linux.
We are able to resolve the domain queries that are defined by our DNS server.
But we are not able to resolve any Domain queries reffered to ROOT Name server.(i.e Queries for Yahoo, hotmail, cisco etc. are not getting resolved).

It is giving me error as " Network host Unreachable".
Can Anybody please help me how can solve the problem

Thanks & Regards,
Dnyaneshwar Kadam

 

[GunJack]

It sounds like your dns server doesn't have a path out. I would run nslookup on the affected dns server and issue the "server a.root-servers.net" command. You might have to use "server 198.41.0.4" if it can't resolve the domain name. This will switch to one of the root servers. Then issue a normal query such as "yahoo.com." (remember to put the trailing period) which should return the correct ip. If these commands fail to execute, it would indicate that you have a connection problem between your dns server and the outside world. It's also possible that your dns server has been configured not to answer queries about external domains but the error message tends to indicate that this is not the problem.

Hope this helps,
GJ