See below for instructions on configuring the PKI Hub hostname.

After running the clusterctl install or clusterctl node add commands you cannot change the IP address or hostname of a node. 

To configure the hostname

  1. Log in to the PKI Hub machine locally, as the sysadmin user.

  2. Run the nmtui tool with sudo permissions. 

    sudo nmtui
  3. Type the password of the sysadmin  user.
  4. Select Set system hostname. 
  5. Press Enter to display the Set Hostname dialog.
  6. In the Hostname field, type an RFC1123 compliant hostname – that is:
    • Must consist of lowercase alphanumeric characters, '-' or '.'
    • Must start and end with an alphanumeric character.
  7. Select <OK> and press Enter.
  8. Press Enter to confirm the hostname change.
  9. Select Quit and press Enter.
  10. Exit the session.
    exit
  11. Log in again.