Hi Erman,
We have identified the below file has wrong entry with the help of our blog "
http://ermanarslan.blogspot.in/2014/11/linux-setting-hostname-fqdn-or-short.html"
[oraprod@0i ~]$ cat /proc/sys/kernel/hostname
0i
[oraprod@0i ~]$
can we change this file without any service restart or can you please suggest if anything is wrong
Thank you