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The Settings tab in the User Manager controls two things: How long a login session is valid, and where the GUI logins will prefer to be authenticated.
- Session Timeout
This field specifies how long a GUI login session will last when idle. This value is specified in minutes, and the default is four hours (240 minutes). A value of
0may be entered to disable session expiration, making the login sessions valid forever. A shorter timeout is better, though make it long enough that an active administrator would not be logged out unintentionally while making changes.
Allowing a session to stay valid when idle for long periods of time is insecure. If an administrator leaves a terminal unattended with a browser window open and logged in, someone or something else could take advantage of the open session.
- Authentication Server
This selector chooses the primary authentication source for users logging into the GUI. This can be a RADIUS or LDAP server, or the default Local Database . If the RADIUS or LDAP server is unreachable for some reason, the authentication will fall back to Local Database even if another method is chosen.
When using a RADIUS or LDAP server, the users and/or group memberships must still be defined in the firewall in order to properly allocate permissions, as there is not yet a method to obtain permissions dynamically from an authentication server.
For group membership to work properly, pfSense must be able to recognize the groups as presented by the authentication server. This requires two things:
The local groups must exist with identical names (Manage Local Groups).
pfSense must be able to locate or receive a list of groups from the authentication server.
See Authentication Servers for details specific to each type of authentication server.