During the configuration a few ports on Appliance are open. You can view the current firewall configuration from the Service Desk Appliance.
On the Service Desk Appliance home page, in the Appliance Configuration section, click Firewall.
Port numbers are displayed with the current status.
If you have a firewall, you must allow the listed port numbers to ensure that you have a seamless experience with Service Desk Appliance. As a best practice, do not change any port numbers from the default ports.