SentinalSRM is a software license protection system. Older versions of it go by the name HASP, netHASP, Aladdin HASP, SafeNet. It is available on Linux, Windows, Mac and various Un*x.You can find it on
sentinalcustomer.gemalto.com.
Software is protected by a USB dongle. It requires a driver package to be installed. That driver package installs a server on the local host that listens on port 1947. This server also provides an administrator web interface on
http://localhost:1947/ that you can use to configure it through your web browser. (Client) software that requests a license, uses localhost:1947 (udp) to contact the local license server. If the local host has a dongle with a valid license, the server will provide a license to the client, otherwise the server will (in the default configuration) attempt to locate another license server in the network and see if that remote server can provide a license. By default, these remote license servers are searched through a udp broadcast to port 1947. Through the web server interface you can configure host names or IP addresses of remote license servers and disable the broadcasts.
Old versions of this product use UDP port 475 and lack the administrator web interface.