Changing the Amlen WebUI authentication cache timeout

With the default value of 60 seconds, the password of a user is kept in the cache for 60 seconds. If the password is checked within the 60-second time period, the check is done against the cached password, not the password that is stored on Eclipse Amlen. If a user changes the password while the old password is in the cache, the old password works until the cached password reaches the timeout.

Specifying a larger value for the authentication cache timeout can increase the security risk because a revoked credential remains in the cache for longer. Specifying a value that is too small might affect performance because the user registry must be accessed more frequently. Consider specifying a value that is no more than one third of the LTPA token expiration value.