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Can some one explain the logic behind this?
  • mandi
    Posts: 207
    I am trying to understand the logic behind this technique,
    I had seen some sites ,when ever we try to access their e-mail service via a proxy connection( mostly via proxy web-sites) they are refusing it,is there any change in the http packets?

    how this detection is possible?

    Also i heard some sites even detect the users who are logging or visiting their sites with vpn,but i don't know how it is possible?
    can it be identified by looking in to the inbound packet structure?

    i want to understand the logic behind this detection,if possible can some one explain the logic please?
  • Xin
    Posts: 3,251
    There are transparent, anon and elite proxys, if your using transparent or anon they can tell your using a proxy if your using Elite they cant.
    Xin
  • mandi
    Posts: 207
    ok bro,how about detecting vpns?
    possible or not?
  • McKittrick
    Posts: 194
    couldn't one detect a VPN simply by looking for the GRE header or IPSEC data? almost any VPN uses this tunnel technique
  • mandi
    Posts: 207
    No bro just think,you can see those headers between you and your vpn server,not between the vpn servers and the destination servers,hope you got my point,...
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