I'm trying to setup name servers and I get the following error when I do a nslookup

nslookup -query=A ***.**.***.186 2>&1
*** Can't find server name for address ***.**.***.187: No response from server
*** Can't find server name for address ***.**.***.188: No response from server
*** Default servers are not available

This is the Ip for My Server
***.**.***.186
These are the Name Server IP's
***.**.***.187
***.**.***.188

Any Idea what this error is. I can't get the domains to resolve I can get to them using the IP/~username The funny thing is I can get to them using all three IP's? So the Ip's are assigned (setup correctly) on the server correct?

os ?

Redhat Linux 7.2

Maybe the DNS Server is not listening on those IP:s?

Locate your named.conf file and open it up. The listen-on directive shoould list 187 and 188 addresses.

I think, you can use the sockstat command to find the IP's the server is listening to ...

If the Ip's are there then you can try restarting your DNS server

Hope it helps
Cheers
Balaji