sir i already find the solution how to block ultrasurf, camfrog, its by blocking port 443 but the problem is yahoo messenger is not working too.... how will i resolve this? thanks..
1.You should block all ports except those really need such as udp 53, tcp 80,tcp 443. 2.Please check [Disable http proxy tunnel] in http filter 3.Please check [Disable https proxy tunnel] in https filter.
You can enable some websites and block others by filtering server side certificate in https filter module. Example: *.yahoo.* -- Pass *.google.* -- Pass * -- Deny
hi admin, i have try to block also all port, except for TCP 80, UDP 53, TCP 443, but still Ultrasurf can still access all websites, ive read in other forums ULTRASURF pass thru port 443.