Offline License File __top__: Kerio Control

To register Kerio Control using an offline license file, you must manually generate the file from the GFI/Kerio registration portal and upload it to your administration interface

. This method is necessary for installations without an active internet connection or instances placed behind strict firewalls that block automatic registration. 🛠️ Step 1: Obtain the License File

Download the License

Complete the wizard and click to save the file to your computer. 2. Import the File into Kerio Control Kerio Control Offline License File

Government, defense, and financial trading environments often operate on a "no direct internet" policy. The Kerio Control box sits between internal LANs but has its WAN port connected to a dark fiber line with no gateway. Here, the offline file is mandatory. To register Kerio Control using an offline license

Support Limitations

air-gapped, classified, or highly remote environments

In an era of persistent connectivity, managing network security appliances in presents a unique paradox: How do you license a firewall that, by policy, cannot phone home to a vendor’s activation server? Here, the offline file is mandatory

With the release of Kerio Control v10 and later, GFI has streamlined the UI but maintained robust support for offline modes. Notably, v10 introduced a "Hybrid Mode" where the firewall attempts online activation every hour; if it fails x times, it falls back to an imported offline grace period. However, for pure offline, the process remains unchanged.