Disclaimer: GFI and Kerio Control are registered trademarks. This guide is for informational purposes. Always consult official GFI documentation for version-specific paths.
/etc/kerio/license/kerio-control-XXXXX.lic
The Intrusion Detection and Prevention System (IDS/IPS) and the integrated Anti-Virus engine cannot pull daily signature updates automatically.
: The wizard will ask you to specify the target system. For Kerio Control, you must enter the hardware serial number , which is usually found on a sticker at the bottom of the appliance. This binds the license to the specific hardware, preventing its use on unauthorized devices. Kerio Control Offline License File
By mastering the offline activation workflow, you ensure your organization's perimeter security remains uncompromised, maintaining absolute control over your private data infrastructure without relying on external cloud handshakes.
The license file is cryptographically locked to the specific hardware or virtual machine GUID submitted during generation. If you reinstall Kerio Control on new hardware or restore a backup to a different virtual host, the old offline license file will reject the activation. You must generate a new file using the new system's GUID. 3. Date and Time Discrepancies
Kerio Control does not limit the number of defined user accounts you can create. However, if the maximum number of currently is reached, no more users will be allowed to connect to the network until an existing user disconnects. Disclaimer: GFI and Kerio Control are registered trademarks
To manually apply the offline license file to your Kerio Control appliance, follow these steps from within the web-based administration interface:
While an offline license successfully activates the core firewall features, running Kerio Control without an internet connection disables several dynamic security modules:
But what happens when you are deploying a high-security appliance in a DMZ, managing a remote site with a strictly whitelisted egress policy, or operating in an entirely air-gapped environment? /etc/kerio/license/kerio-control-XXXXX
Move the downloaded .lic file to the isolated network using approved secure data transfer protocols. Depending on your organization's security posture, this may involve: An encrypted, scanned USB flash drive. A data diode transfer system. An internal secure file transfer protocol (SFTP) jump box. Step 4: Import the License into Kerio Control
Situations where a firewall needs to be deployed or rebuilt on-site before external internet connectivity is provisioned. How to Obtain and Apply an Offline License File
In the window that appears, select or Update license info .
It is possible to link an offline Kerio Control instance to the MyKerio cloud management platform for monitoring without using it for licensing. However, if the intention is strict air-gapping, the MyKerio connection must be disabled to prevent the appliance from attempting to reach cloud services.