Local License Keys In addition to HTTP checking, iono includes the ability to use local license keys. When using the local license keys integration method, the first time your product is accessed and there is no license key in place, the code contacts iono and sends the hostname and IP address of the server. This is then bound to the license and a response is sent with the full license data. This includes the license status, expiry date, hostname and IP address. The code then encrypts this data and writes it to a key file on the server. The next time the product is accessed, the code reads the key file on the server and decrypts it, then reads the license data. No connection is needed to your iono installation so the product can be used offline, behind a firewall, or if your server is down.