Prepress houses don't always give permission on their workstations to access the Internet. They only give permission to special sites for updates. This article describes which firewall ports and sites should be accessible to activate and deactivate licenses.
The following is a description of which sites and firewall ports should be accessible to activate and deactivate Esko licenses.
If the prepress house wants to configure its IT infrastructure to allow online activation and deactivation of Esko licenses, it has to make sure that port 80 (HTTP port) and 443 (HTTPS port) are open for the following websites: