On Fri, Oct 28, 2011 at 4:11 PM, Jamie Cameron <jcameron@webmin.com> wrote:
> 2 - Is it possible to restrict a User-Name to only "ONE" simultaneous login

No - I'm not even sure how that could be implemented without potentially locking
the user out if he forgets to logout.

The simple answer is that it will assume the you logged out after a particular amount of time (which Webmin already does).
If a user forgets to log out, they would be locked out for a little while.

Actiontec routers (used for Verizon FiOS) do that.
It is incredibly annoying since it sometimes locks you out incorrectly.
It does time out after some time (I think 30 minutes of no activity is the default).
If I remember correctly, you can also set the number of simultaneous sessions to more than one.