Firewalls: Required ports

Operating the IACBOX behind a firewall is part of operating the IACBOX securely.
In order for the system to work properly behind a firewall, the following ports need to be open for outgoing connections.

PortUsage
53DNS (Domain Name System) - Name resolution
123NTP (Network Time Protocol) - Time synchronization
443HTTPS - License registration and update
873Online update
1194Central Services VPN Server (only if needed)
5555Remote control for support