I want to run two PMG nodes (in a cluster) physically placed in two separate locations, both behind NATs. Is it enough to open and redirect ports: 465 (smtps) and 22 (ssh) on both firewalls for the cluster to flawless communicate/synchronize?
Of course I can set up VPN and use private IP range for intra-cluster communictation, but it seems not necessary since both smtps and ssh are encryped anyway.
Of course I can set up VPN and use private IP range for intra-cluster communictation, but it seems not necessary since both smtps and ssh are encryped anyway.
