I'm a system engineer for a Privet School ,I need a solution for sniffer software like ettercap, because the student could capture all the trafice by usng the GUI tool Backtrack > ettercap -G for specifice person or for brodcast and they could sniff all the passwords for facebook or google mail even if they are secured by a certificate and another site, the problem that all site protected by SSL .so please help me to find a solution to my LAN students used a version of linux called backtrack 4 my network connsist of DC GC 2008 R2, SQL 2005 no VLN configured ,NAP not a solution for me because i have more then 100 Laptop not joined to Domain controller i have to LAB, and about 120 PC. OS 2008 R2 ,7,XP . Eng. Khaldun Azar IT Administrator MCSE MCITP EA Bishops School