Renaming Netbackup Master server and 5230 appliance (media server)

Hi guys,

i have a backup environment with

1. Master Server:

OS: RHEL 6.6

NBU version: 7.6.1

2. Media Server:

NBU 5230 appliance

Version: 2.6.1

This is a newly build environment with no backup images (production). Only some test images are there.

My problem is that, i need to change the hostname of both the Master server and the media server.

one option is to rebuild the whole thing from scratch but i dont want to do it again as this environment is almost ready for production and most probably, it has to go to production by end of next week.

i know that changing a master server name is a  job of Symatec authorized consultant. But in my case, there is no catalog/backup images to work with.

Can anyone help?

Thanks.