der Mouse writes: 

> [top-posting fixed up manually]
>>>> is it possible to limit active sessions number by IP address[?]
> 
> In passing, why do you want to do this?  It sounds like an odd desire,
> and I'm having trouble imagining any use for it.   
>

He's running a pr0n site and wants to keep a single IP addy from cranking up 
100 concurrent wgets and leeching his pix?