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Not able to block Ultrasurf , flash vpn , cyber ghost

Dear all,

I have sophos SG 135 and using the same on transparent mode.

I am also using application control to block facebook and whatsapp and application.

Somehow users are accessing it through ultrasurf or flash vpn , considering this i have blocked proxy / vpn category from application control.

Still users are able to access this VPN.

any idea to block this.

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0 Abhishekk_01 over 9 years ago

Hello ian,

I cant see any logs in Application filtering also Firewall generates no logs for the proxy application.
You are asking me to block port 80,443 how i will browse internet ?
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0 twister5800 over 9 years ago in reply to Abhishekk_01

Hello ian,

I cant see any logs in Application filtering also Firewall generates no logs for the proxy application.
You are asking me to block port 80,443 how i will browse internet ?

Ian is talking firewall rules, the Web Proxy overrules them at the ports specified.

So yes, with proper Web proxy configured, you can browse the net, even if you block the ports at the firewall level :-)

-----

Best regards
Martin

Sophos XGS 2100 @ Home | Sophos v20 Technician
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0 twister5800 over 9 years ago in reply to Abhishekk_01

Hello ian,

I cant see any logs in Application filtering also Firewall generates no logs for the proxy application.
You are asking me to block port 80,443 how i will browse internet ?

Ian is talking firewall rules, the Web Proxy overrules them at the ports specified.

So yes, with proper Web proxy configured, you can browse the net, even if you block the ports at the firewall level :-)

-----

Best regards
Martin

Sophos XGS 2100 @ Home | Sophos v20 Technician
Cancel
Vote Up 0 Vote Down

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