FCUBS Blank page after login

After cloning FCUBS from PROD,When you try to launch the url of application then login,You may get blank page as like.

 

++ We have to change the Weblogic data source to IP address of database.
++ Check the /etc/hosts file entry for ip address.Some time you may ping back  127.0.0.1  

#ping HOSTNAME
PING HOSTNAME (127.0.0.1) 56(84) bytes of data.
64 bytes from HOSTNAME (127.0.0.1): icmp_seq=1 ttl=64 time=0.034 ms

# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               HOSTNAME localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
10.106.180.12   HOSTNAME

========
Change the above host entry as like

# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
10.106.180.12   HOSTNAME
Then restart the weblogic and try to login