Dell-Omnia-Clusters-HPC-AI/docs/PreRequisites/Control_Plane_Security_PreReqs.md

Pre-requisites Before Enabling Security: Control Plane

• Set hostname of control plane to hostname.domainname format using the below command: hostnamectl set-hostname <hostname>.<domainname>

  Eg: hostnamectl set-hostname valdiationms.omnia.test Note:

  • The Hostname should not contain the following characters: , (comma), . (period) or _ (underscore). However, the domain name is allowed commas and periods.
  • The Hostname cannot start or end with a hyphen (-).
  • No upper case characters are allowed in the hostname.
  • The hostname cannot start with a number.

• Add the set hostname in /etc/hosts using vi editor.

vi /etc/hosts

• Add the IP of the control plane with the above hostname using hostnamectl command in the last line of the file. >> Eg: xx.xx.xx.xx