telnet to adjacent computer fails

[Geoffrey Leach]

On 03/04/2012 05:35:17 PM, don fisher wrote:
> I am running f16 and am trying to get NFS so work. I can ping the
> site, 
> but when I try and telnet to it I receive "Name or service not 
> known".
> 
> What does telnet require that ping does not?
> 
> Thanks
> don

As I understand, you've disabled the firewall on both client and 
server. If not, do so.

Second, you've been advised to ditch telnet in favor of ssh. Good 
advice.

Third, you haven't said whether you're doing NFS3 or NFS4. The latter 
is the one to use.  Check out the steps in this page: 
http://www.crazysquirrel.com/computing/debian/servers/setting-up-
nfs4.jspx. (Just be careful that the IP addresses match your setup)

Finally, here's a script that tests your setup. If it does not reveal 
errors, you should be OK.

systemctl restart nfs-lock.service
systemctl restart nfs-idmap.service
systemctl restart nfs-server.service
tail -n 15 /var/log/messages


FWIW, I had the same problem and was blessed with considerable help 
from the list. Hopefully this will work for you.