Syslog Forwarding

To forward the system logs to a Syslog server, configure in Hiera log_client::forward_to:

  log_client::forward_to:
    - 'log1.psi.ch:1514'
    - '@log2.psi.ch'

This sends to log1.psi.ch on the custom UDP port 1544, but also log2.psi.ch gets a copy on TCP default port 514.