Help: address resolution

[Ramesh Yalavarthi]

I have a problem with one of the machines on the network. Because of the move to a new building I had to change the IP address hostname, DNS server and domain. When I restarted the machine everything is fine except for one problem. I am able to telnet to this machine from other machines using both IP address and hostname. But when I try to telnet to some other machine from this machine using fully qualified domain name it doesn't work. But if I use the IP address of the same machine it works. Any idea what's wrong. I appreciate your help.
Thanks,
Ramesh

[Kofi ARTHIABAH · Accepted solution]

Ramesh:

you might want to look at your /etc/resolv.conf make sure that you have the correct DNS servers listed in there and that you have an entry for search and domain

also, verify that you have the correct configuration for your /etc/nsswitch.conf file.

also make sure that your servers entry in the /etc/hosts file is valid

finally, check your /etc/rc.config.d/netconf and make sure that the values in there make sense.

good luck

[Ovidiu D. Raita]

Try a traceroute, then nslookup to the system you cannot access. This will tell you where's the problem.

Ovidiu