CentOS is a Linux distribution that is based on the freely available Red Hat Enterprise Linux Source. This brief guide will tell you how to change your hostname using PuTTY in the event that you are unable to do this via the control panel.
There are several ways to change your hostname, and the easiest way would be through your control panel, but in the event you don't have access to your control panel the following instructions will help
I am using PuTTY in the following guide, but the same steps can be performed from any console.
- Log into PuTTY using your username (usually root) and password
- Type "cd /etc/sysconfig/" to take you to the sysconfig folder
- Type "vi network" to open your network settings
- Type "i" on your keyboard and update your HOSTNAME
- Press "ESC" on the keyboard
- Save the new configuration by typing ":wq!"
- Finally, log off and reboot
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