how to block ultrasurf??

[noside]

hi pls. tell me how to block ultrasurf????

[noside]

it bypass the restriction i made.... pls help hw will i block this application to run... also include the camfrog, online games, Uttorent.

[noside]

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..

[admin]

You can use https filter plugin to filter traffic of tcp 443 port.

[noside]

what is the exacty procedure sir in https filter config?? i will block ultrasurf without affecting the connection of yahoo messenger..

[noside]

its really hard to block this piece of apps, it bypass all restriction i made... any idea how to block this ULTRASURF?? pls.. thanks

[admin]

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.

[noside]

hi sir, still not working, Ultrasurf can still access all website ill filtered....

[admin]

You can enable some websites and block others by filtering server side certificate in https filter module. Example:
*.yahoo.* -- Pass
*.google.* -- Pass
* -- Deny

[noside]

Ultrasurf pass through port 443, if you block this port some apps will not work like yahoo messenger..

[admin]

You can pass some server side certificate, such as yahoo,google and block the others.
*.yahoo.* -- Pass
*.google.* -- Pass
* -- Deny Record

[noside]

still not working sir.... when somebody use ultrasurf.. he can still access all block website....

[admin]

Ultrasurf use udp protocol.
You should block all ports except those really need such as udp 53, tcp 80,tcp 443.

[mashia]

still not working sir.... when somebody use ultrasurf.. he can still access all block website....

Does he have an IP address?

[noside]

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.