how to block ultrasurf??

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how to block ultrasurf??

Postby noside » Fri May 25, 2012 7:03 am

hi pls. tell me how to block ultrasurf????
noside
 
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Re: how to block ultrasurf??

Postby noside » Fri May 25, 2012 11:24 am

it bypass the restriction i made.... pls help hw will i block this application to run... also include the camfrog, online games, Uttorent.
noside
 
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Re: how to block ultrasurf??

Postby noside » Sat May 26, 2012 10:49 am

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..
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Re: how to block ultrasurf??

Postby admin » Sat May 26, 2012 3:49 pm

You can use https filter plugin to filter traffic of tcp 443 port.
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Re: how to block ultrasurf??

Postby noside » Sat May 26, 2012 6:26 pm

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

Postby noside » Tue May 29, 2012 2:23 am

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

Postby admin » Tue May 29, 2012 7:29 am

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.
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Re: how to block ultrasurf??

Postby noside » Tue May 29, 2012 8:10 pm

hi sir, still not working, Ultrasurf can still access all website ill filtered....
noside
 
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Re: how to block ultrasurf??

Postby admin » Thu May 31, 2012 8:07 am

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

Postby noside » Sat Jun 02, 2012 3:38 am

Ultrasurf pass through port 443, if you block this port some apps will not work like yahoo messenger..
noside
 
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Re: how to block ultrasurf??

Postby admin » Sun Jun 03, 2012 12:44 am

You can pass some server side certificate, such as yahoo,google and block the others.
*.yahoo.* -- Pass
*.google.* -- Pass
* -- Deny Record
admin
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Re: how to block ultrasurf??

Postby noside » Tue Jun 05, 2012 12:22 am

still not working sir.... when somebody use ultrasurf.. he can still access all block website....
noside
 
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Re: how to block ultrasurf??

Postby admin » Sun Jun 10, 2012 8:37 pm

Ultrasurf use udp protocol.
You should block all ports except those really need such as udp 53, tcp 80,tcp 443.
admin
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Re: how to block ultrasurf??

Postby mashia » Sun Jun 17, 2012 6:56 pm

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

Does he have an IP address?
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Re: how to block ultrasurf??

Postby noside » Wed Jun 20, 2012 12:10 am

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.
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