Kerio Control Offline License — File

Before we discuss the "how," we must understand the "what."

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.

An Offline License File is a manually generated, encrypted .license or .txt file that bypasses this automated phone-home process. It contains the same cryptographic signature of your purchase, but it is applied via a manual upload through the Kerio Control administration interface.

The administrator accesses the Kerio Control Admin Console. The system displays the Hardware ID. This string acts as the public key identifier for the specific appliance.

The Kerio Control Offline License File is not a compromise; it is a feature for professionals who prioritize stability and security over convenience. By following the steps outlined in this guide, you can deploy Kerio Control in submarine networks, SCADA environments, and classified labs without ever worrying about your firewall leaking a DNS query to a public license server. Kerio Control Offline License File

Remember: The offline workflow is a three-step dance—Copy UID, Generate file, Upload file. Master that dance, and you will never be locked out of your own network again.

Next Steps:

Disclaimer: GFI and Kerio Control are registered trademarks. This guide is for informational purposes. Always consult official GFI documentation for version-specific paths.

An offline license file for Kerio Control is used to activate the software on machines that cannot access the internet to obtain a license automatically Obtaining the Offline License File To get the file required for offline registration: Kerio Product Registration page Enter your purchased license number and complete the registration wizard. Once completed, download the generated license.key file to your local computer. Importing the License File Before we discuss the "how," we must understand the "what

Follow these steps to apply the file to your Kerio Control instance: to the Kerio Control administration interface. , locate the Configuration Assistant button (usually in the bottom right). Register Product Update License Info In the activation wizard, select the link Register offline by license file , select your downloaded file, and click to complete the process. Key Considerations

The license file must match the registered hardware serial number if you are using a Kerio hardware appliance. Expirations: If your subscription expires, functionality like the IPS (Intrusion Prevention System)

is disabled, and you may only be able to access the activation wizard. Disk Space:

Now that you have the .lic file on your secure storage medium, return to the offline Kerio Control machine. Next Steps:

Method A: The Web Administration Interface (Most Common)

Method B: Manual File Placement (Advanced / SSH) If the Web UI is unresponsive, you can SSH into the Kerio Control box (Debian-based) and place the file manually:

/etc/kerio/license/kerio-control-XXXXX.lic

Then restart the keriocontrol service:

service keriocontrol restart