How to change or modify EBS URL to more user friendly name

In some cases an EBS Instance url  has to be changed to a more user friendly name because the existing url is either diffcult to remember or to very similar to another instance or not suitable.

Goal :

Changing url from http://erp.oracle.com:8000 to http://erpuat.oracle.com:8000

Steps :

1.Please ask Network Team to add alias in DNS with new hostname (erpuat.oracle.com) for the IP 10.10.10.11.

     (adding this new alias to DNS would make it be able to resolve to the new url)



      From Command prompt try to ping erp.oracle.com and ping erpuat.oracle.com

      Please check both the hostname should ping with same IP 10.10.10.11 as they are just alias of the         other name


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

       10.10.10.11         erp.oracle.com        erp      erpuat.oracle.com  erpuat


   3.Now try to ping erpuat.oracle.com from Application server. It should ping self.


   4.Change  the following parameter values with new values in $CONTEXT_FILE


      <login_pageoa_var="s_login_page">http://erpuat.oracle.com:8000/OA_HTML/AppsLogin

       </login_page>

       <externURL oa_var="s_external_url">http://erpuat.oracle.com:8000</externURL>

       <webentryhost oa_var="s_webentryhost">erpuat</webentryhost>

        <webentrydomain oa_var="s_webentrydomain">oracle.com</webentrydomain>


   5.Stop the application services and run Autoconfig.

   6.Please start the application and check the new url http://erpuat.oracle.com:8000