HOW TO change IP Address and Hostname in ebusiness suite installation

This is most common question come for DBA's.

There is documented procedure in oracle application: 

http://download.oracle.com/docs/cd/B32110_01/core.1013/b32196/host.htm#sthref405

Metalink Note:

How to change the IP Address on a R12 EBusiness Suite Installation [ID 554843.1]