The steps of installing and configuring dns server for a private net
isolated from the Internet

Installation:

0. install named from Linux distribution CD or download from the internet
           rpm -i name*.rpm
1. check if /etc/rc.d/init.d/named exists (installed by previous steps)
2. cd /etc/rc.d/rc2.d
3. ln -s ../init.d/named S94named   #named will be started when system comes up

Configuration: (assuming all the ethnet cards and drivers were installed
                and configured properly - use /bin/netcon to assign
                host name, IP address, dns server, domain name, netmask 
                and routers)

0. mkdir /var/named

1. cp * /var/named      #all the files in this directory

2. cp named.conf /etc   #replace origin.com to yourDomain

3. mv db.origin.com db.yourDomain

4. update all the hosts names and domain name in db.yourDomain and db.10.10.10
   Make sure the IP address matches with your the rest of hosts in your
   private net.  (andrew is the dns server in this example. so replace
   it with your designated dns server.)

Adding new hosts into private network (10.0.0.0)

The following two files need to be updated:
   1. db.yourDomain
        forward mapping - A record: hostname to IP address mapping)
     
   2. db.10.10.10 
       reverse mapping - PTR record: IP address to host name mapping)

   e.g. shanado.origin.com is a new box with IP 10.10.10.3

      1. append this entry into db.10.10.10

shanado                           IN      A       10.10.10.3

      2. append this entry into db.10.10.10

3                              IN      PTR     shanado.origin.com.