SEVERE: [FATAL] servername: servername.

11.2.0.3 Runinstaller failed to execute on OEL6.5 64bit

Error:-

SEVERE: [FATAL] mangalyan.bangalore.bedford.local: mangalyan.test.com
Refer associated stacktrace #oracle.install.commons.util.exception.DefaultErrorAdvisor:37
INFO: Advice is ABORT
SEVERE: Unconditional Exit
INFO: Adding ExitStatus FAILURE to the exit status set
INFO: Finding the most appropriate exit status for the current application
INFO: Exit Status is -1
INFO: Shutdown Oracle Database 11g Release 2 Installer

Solution:
 Check the below detail

hostname
uname -a
cat /etc/hosts
ifconfig

After correcting the issue i am able to execute.