By Nilesh J. Vaghela ( ElectroMech )
DNS howto for RHEL5 with following assumption

Domain name : example.com
Network : 192.168.0.0/24
DNS working with chroot environment.
root@station37 ~# yum install bind* caching-nameserver
Loading "rhnplugin" plugin
Loading "installonlyn" plugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Setting up repositories
rhel-debuginfo 100% |=========================| 951 B 00:00
Reading repository metadata in from local files
Parsing package install arguments
Resolving Dependencies

It should be noted, at the outset, that this post is limited in its scope. We're going to be looking at one particular way in which you can recover an accidentally deleted file on Linux or Unix ( Tested on RHEL3 and Solaris 8 ). If you ever want to scour a hard drive that you need to get lots of information back from, then (assuming that you quarantined it immediately upon noticing this and haven't written to it since) you should check out The Coroner's Toolkit.

This will forward the port which satisfy following conditions.

1. The incomming address is fix

2. Incomming and outgoing port is fixed.

#-- start up the script

DNS howto for RHEL5 with following assumption

By ElectroMech Nilesh Vaghela