Kerio Control Offline License File High Quality Info
Because the firewall is offline, you will need a secondary machine (a workstation or laptop with internet access) to communicate with the GFI licensing portal.
A standard Kerio Control installation (whether on dedicated hardware, a VM, or a software appliance) periodically “phones home” to Kerio’s license servers. It confirms your subscription status, feature set (UTM, NG-UTM, or Entry), and user count. Kerio Control Offline License File
Many administrators mistakenly use offline licensing when they don't need to. Offline licensing adds administrative overhead. You should only use it in the following scenarios: Because the firewall is offline, you will need
Transfer the .lic file back to the Kerio Control appliance (via USB or SCP if allowed). In the admin UI: Because the firewall is offline