An anti-PROXY detecting scheme based on characters

An anti-PROXY detecting scheme based on characters is proposed. According the characters of data flow, viz. flow rate character, application character, content character, process character and behavior character, it is identified whether the user is an PROXY object or not. The next step anti-proxy action will be made in terms of practical policies. The scheme includes character collection, modes matching, policies judging and policies decision. It has a very practical significance to operate a functional, manageable and profitable campus network. The proxy misuse is effectively identified and prevented to make the campus network into a virtuous circle.