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Re: How to detect a VPN connection?

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From Gilles <nospam@nospam.com>
Newsgroups comp.security.misc
Subject Re: How to detect a VPN connection?
Date Fri, 07 Oct 2011 20:15:03 +0200
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On 07 Oct 2011 10:43:14 GMT, Casper H.S. Dik
<Casper.Dik@OrSPaMcle.COM> wrote:
>Many of the avaiable VPN technologies use fixed ports, some use
>VPN tunneled over SSL (HTTPS or DTLS); in most cases the porst
>can be changed but that is difficult to communicate to all of
>your users and each particular VPN service would easily be found
>by a government.

Thanks for the infos. I have a friend in China who has been connecting
to Europe through a VPN for months without a problem, so I guess the
Chinese government isn't really trying to stop VPNs as of now.

>Also, govermment can connect the whole country with a transparent
>proxy; this is likely the reason why so many attempts are being
>made to subvert certicate authorities.  It makes it somewhat easier
>to detect whether a VPN is being setup or not.

I'm not very clear about how certificates work, so I'll ask in a ng
that deals with browsers.

Thank you.

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Thread

How to detect a VPN connection? Gilles <nospam@nospam.com> - 2011-10-07 01:21 +0200
  Re: How to detect a VPN connection? Barry Margolin <barmar@alum.mit.edu> - 2011-10-06 20:34 -0400
  Re: How to detect a VPN connection? Doug McIntyre <merlyn@geeks.org> - 2011-10-07 00:54 +0000
    Re: How to detect a VPN connection? Gilles <nospam@nospam.com> - 2011-10-07 12:08 +0200
      Re: How to detect a VPN connection? Casper H.S. Dik <Casper.Dik@OrSPaMcle.COM> - 2011-10-07 10:43 +0000
        Re: How to detect a VPN connection? Gilles <nospam@nospam.com> - 2011-10-07 20:15 +0200
          Re: How to detect a VPN connection? Casper H.S. Dik <Casper.Dik@OrSPaMcle.COM> - 2011-10-07 22:39 +0000
            Re: How to detect a VPN connection? Gilles <nospam@nospam.com> - 2011-10-08 02:27 +0200

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