nslookup errored out on RHEL5 machine

Issue

• The command 'nslookup <hostname>' fails on a Red Hat Enterprise Linux Server 5.0 with the following error:

  # nslookup UP1TU002 
  ;; Got SERVFAIL reply from 126.188.57.27, trying next server 
  ;; Got SERVFAIL reply from 126.188.57.28, trying next server 
  Server:         126.196.57.27 
  Address:        126.196.57.27#53 
  
  ** server can't find UP1TU002: SERVFAIL
  

• The same command is working on a Red Hat Enterprise Linux Server version 4.