Changing hostname in URL of EBS Application R12

Changing hostname in URL of EBS Application R12 without changing actual hostname of Application Server

Purpose :
Changing the hostname of login Page but actual hostname of EBS application server should not be changed.

Goal :
Changing url from http://abmlearing.oracle.com:8000 to http://learningabm.oraclenew.com:8000

Steps :
   1.Please ask Network Team to add alias in DNS with new hostname for the IP 10.10.10.11.
From Command prompt try to ping abmlearing.oracle.com and ping learingabm.oraclenew.com

Please check both the hostname should ping same IP 10.10.10.11

   2.Add new hostname entry in /etc/hosts of Application server

10.10.10.11         abmlearing.oracle.com               abmlearing    learningabm.oraclenew.com     learningabm

   3.Now try to ping bcde.oraclenew.com from Application server. It should ping self.

   4.Change  parameter value with new value in $CONTEXT_FILE

<login_page oa_var="s_login_page">http://learningabm.oraclenew.com:8000/OA_HTML/AppsLogin</login_page>
<externURL oa_var="s_external_url">http:// learningabm.oraclenew.com:8000</externURL>
<webentryhost oa_var="s_webentryhost">learningabm</webentryhost>
<webentrydomain oa_var="s_webentrydomain">oraclenew.com</webentrydomain>

   5.Stop the application services and run Autoconfig.

   6.Please start the application and check the new url http://learningabm.oraclenew.com:8000