State Servers

A state server is the place where ClearBox Server stores information about currently established user connections. When a connection is opened and a user's session starts, ClearBox uses accounting request to add an entry to the state server about this session. When the session is terminated, ClearBox removes its entry from the state server table.

State servers are used by ClearBox to perform 'double-logon prevention', i.e. to control the number of sessions a user may start simultaneously. You may configure this value as a global realm value, when this limit is checked for every user authenticated in the realm, or for a particular user. In the latter case the limit value is retrieved from a database.

State server is implemented as a database table, where all rows represent current connections to NASes. All you need when setting up a new state server is to specify SQL commands used to add a row, remove it, or clear all entries when a NAS reboots.

See how to configure a state server.

How to create a new state server:

1. Right-click the 'State servers' node in the left tree and select 'Add New State Server':

2. Type the new state server name instead of <new id> text:

3. Configure its settings and click 'Apply changes'.