AIX

I think:
your local file /etc/services is without lines ftp, telnet

your local file /etc/irs.conf is as:

services local continue
services nis

and

hosts nis


your DNS servers is without zone “172.18.2.in-addr.arpa”
OR other
you can ask from your or other clent dns
nslookup 172.18.2.1 172.18.14.7 and
nslookup 172.18.2.1 172.18.14.8
OR
host 172.18.2.1 172.18.14.7 and
host 172.18.2.1 172.18.14.8

your local /etc/hosts havent lines with 172.18.2.1

map hosts at server nis has lines with adress 172.18.2.1

Now, I think you know what to do.
You can select same way to do.

Bye

well, try to replace the values in /etc/netsvc.conf

Code:

hosts=bind,loca

l
and check if it resolves quick...