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OpenVPN passes through HTTP Proxy

varet
Good evening,

I have a problem with my users and i cannot find any way to stop it.

So the problem is this:

I have blocked everything (anonymizers, remote access and other similar services)
I have only the port 80 accessible from users and only TCP

The problem is that they pass my firewall using VPN Solution like OpenVPN by enabling the HTTP Proxy on VPN app.
Using an HTTP "Tunneling" to another system they open any url.

Is there any way to Cut these services? (without using the bad way)


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  • 0
    My configuration blocks "Drugs" and I cannot reach http://www.marijuana.com/ directly - it also is blocked when I attempt to access it via translate.google.com.

    To block OpenSSL VPN, you need to force browser traffic through the proxy in one of the non-transparent modes and eliminate the packet filter rule allowing other HTTPS traffic.

    Cheers - Bob
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  • 0
    My configuration blocks "Drugs" and I cannot reach http://www.marijuana.com/ directly - it also is blocked when I attempt to access it via translate.google.com.

    To block OpenSSL VPN, you need to force browser traffic through the proxy in one of the non-transparent modes and eliminate the packet filter rule allowing other HTTPS traffic.

    Cheers - Bob
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