Hello Every one i am new on this isaserver.org help. with the help of quick start guied i am running isa server with default all open rule, i need to know some advance functions. at this time i am using isa with dialup connection. 1- how i can impelement security control , lets spose i want to block some specific users or group for specialy for downloading, massenger chating, or browsing etc. please tell me with step by step exemple. 2- how can we configure ISA server to work behind an other proxy with 2 or 1 lan cards. like as we configure ccpproxy or wingate as cascading proxy and just type our first proxy server ip and port in cascading option it strat work , how we can do this with ISA thanks for all