Limiting connections based on Application

Thanks for the link. I am going through it. Meanwhile, to give more insight into it, i don't want to limit connections based on client IP, rather i need to only monitor number of active clients for a particular app. Once the number of active clients reaches a limit (say 100), i want to redirect all further client requests for that particular app to a different page. Also, i need to decrement the count once the client closes a connection for that particular app so that other clients can come in.

 

 

But if a client requests some other app, he should be able to access it.

 

 

TIA,

 

 

Ravi