To create a common message across all domains:
su - to assume root user privileges./etc/motd at the root level of the server on which Parallels Pro is installed.ln command to hard link the file /etc/motd individually to each domain.For example, to create a hard link from the Parallels Pro Control Panel server to the domain mycompany.com enter the command,
ln /etc/motd /home/virtual/mycompany.com/etc/motd