hi guyz..... i need to know bout certain s/ws which can provide me security as well as web filtering in LAN. I tried evaluation version of zone alarm's security suite which provides web filtering but it has some problems............. some times it even blocks mail.yahoo.com n sometimes it lets porn sites to open. wat can be the reason?? i think it blocks yahoomail as it is trying to access port 80. can u suggest any other content filtering s/ws or can u tell me wats the problem with zone alarm??