See below for configuring the network connection of an Entrust PKI Hub machine.

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

To configure the connection

  1. Log in to the machine console locally as the sysadmin user.

  2. Run the nmtui tool with sudo permissions. 

    sudo nmtui
  3. Select Edit a connection. 
  4. Press Enter and select the Ethernet connection. 

  5. Press Enter to display the Edit connection dialog.

  6. Change the IPv4 CONFIGURATION mode to Manual.

  7. Select <Show> for IPv4 CONFIGURATION. 

    As explained in IP address requirements, Entrust PKI Hub only supports IPv4 and disables IPv6 by default.

  8. Press Enter to display the connection settings.

  9. In the Addresses field, enter the preferred IP address and the subnet mask – for example: 

    192.168.100.4/24
  10. In the Gateway field, enter the IP address of the default gateway for your network connection. 
  11. In the DNS servers field, enter the IP address of each server for DNS resolution. Separate multiple IP addresses with spaces or commas. 

    As explained in DNS requirements, Entrust PKI Hub does not support accessing a DNS server through a proxy.

  12. In the Search domains field, enter the domain names you want to use for DNS searches. Separate multiple domains with spaces or commas. 

    Your system will automatically append the search domains to any unqualified domain names you use in your network, making it easier to access local resources without typing the full domain name every time.

  13. Select <OK> and press Enter.
  14. Select <Back> and press Enter.
  15. Select Set system hostname. 
  16. Press Enter to display the Set Hostname dialog.
  17. 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.
  18. Select <OK> and press Enter.
  19. Press Enter to confirm the hostname change.
  20. Select Quit and press Enter.
  21. Make the changes effective:
    • Reboot the machine, if you are using the local console
    • Open a new SSH session, if you are using remote SSH access.