>Unless I am getting it wrong ...are you telling me to find (or propose) a solution to my problem?< I proposed a possible solution using squid, however, must be implemented (programmed) by yourself, as not available AFAIK. > Must it be external? Such tend to be slow.< Not necessarily, as the result of the auth helper might be cached within squid, so number of accesses to this helper is reduced. >Is there another open source solution I can implement besides tinkering with the existing squid installation? < You might have a look at "mikrotik.com". Their hotspot system within RoS should be able to do, what you want. Their hardware is really cheap, and not so bad. As there is also a huge forum regarding scripts, you should find something suitable on the spot. BTW: You might use squid as an upstream caching proxy for your MT-box, if you want. Simple to implement. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Duration-Access-Limits-tp4665424p4665438.html Sent from the Squid - Users mailing list archive at Nabble.com.