Quick steps for changing hostname from RedHat ¹

1. Update the $hostname line in /etc/sysconfig/network
2. Update the $hostname in /etc/hosts
3. Run /bin/hostname $hostname for the hostname change to take effect immediately.
4. Reboot or run /sbin/service syslog restart for syslog to log using the new hostname.

A reboot is not required to change the system hostname.

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