Technique for user license implementation in asp.net mvc
<p>Currently i'm searching for a technique to create a named user license system
with asp.net mvc. For example a customer has bought 10 user licenses, it should
only be possible, to log in 10 times parallel.</p>

<p>The problem I'm struggeling with, is the fact that there is no permanent
connection in web technologies. (Between client and server, besides using web sockets or some similar things).</p>

<p>Or is there a well known and good alternative?</p>

<p>Thank you very much!</p>