The study in defense worms with updating patch of operation system and scanning leak on campus network

It is proposed to add a charging gateway in combination with leak scanning and net flow monitoring technology and intends to solve the problems in several aspects: patching operation system, scanning serious leak, promoting computers that have serious leaks, and fighting against worms. It is able to suspend the Internet-visiting qualification on computers which have been infected by worms until such worms are cleared and is able to notify the users who have some serious leaks in their operation systems or have not patched their operation systems in time in login page of the charging gateway, enjoying better effects and having some referencing value to other middle-scale campus networks or enterprise networks.