On-Premise Floating Licenses

On-premise floating licenses are floating licenses where the license server runs inside your customer's own network instead of on Cryptlex's servers. Your customer runs LexFloatServer and activates it with the license key you issue, and it governs all licensing locally. This suits restricted environments such as air-gapped or offline networks.

Client applications use the LexFloatClient library to connect to LexFloatServer over the local network and request seats, so licensing keeps working with no external internet access.

On-premise floating licensing needs no internet access, not even for LexFloatServer itself. The server can be activated offline by exchanging request and response files, generated either in the admin portal or by your customer in the customer portal.

How your app obtains a floating license

To obtain a floating license from the LexFloatServer, your app uses the LexFloatClient library. Each time the app requests a seat through LexFloatClient, LexFloatServer checks one out and reduces the available pool. If all seats are in use, the next user waits until an active user releases a seat or a lease expires. To avoid a zombie seat, release the seat with DropFloatingLicense() when your app exits.

Setting up on-premise floating licensing

Install, configure, and activate LexFloatServer on your customer's network.
Integrate LexFloatClient into your app to lease seats from the server.

Your app must be able to reach LexFloatServer over the network. The server listens on port 8090 by default, and your app points at it with SetHostUrl(), for example http://<server-host>:8090. Open that port in the firewall on the machine running LexFloatServer.

Hosted Floating Licenses Overview

Last updated: 8/6/2026