This quick tutorial will describe how to change the hostname on your CentOS Linux server.

Where HOST_NAME occurs, replace it with your desired hostname.

1. Run the hostname command:

hostname HOST_NAME

2. Open /etc/sysconfig/network, update the HOSTNAME line and save:

# vim /etc/sysconfig/network
HOSTNAME=HOST_NAME

3. Open your hosts file, and update the hostname entry and save:

# vim /etc/hosts
127.0.0.1 HOST_NAME

Alternatively, you can use this script to update your hostname.

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