In the SSO method (Single Sign-On) users need to authenticate only once to access several services.

When a session is opened and users authenticate on the authentication domain, these operations are logged. These logs are then sent in syslog format to the SN SSO Agent, which is equipped with a syslog server that filters the logs using regular expressions. SN SSO Agent then relays this information to the firewall through an SSL connection, which updates its table of authenticated users.

Introduction SSO agent for Linux