Yes, it's vendor dependant.
TCP protocol doesn't specify any connection timeout.
A TCP connection can be alive forever.
So the application (client or server side) must manage timeout, if needed
and send a TCP reset.
""Phil Barker"" a icrit dans le message news:
[EMAIL PROTECTED]
> I thought that would grab your attention Priscilla
> hehehe.
>
> I need to grant Terminal Service Access from anyone
> (internet) to a well known TCP port of a destination
> IP Server address x.x.x.x
>
> This is implemented as a permit on the PIX F/W.
>
> My problem is that I can telnet that well known port
> and the Server generates an Error Message "Error :
> Must Authenticate first."
>
> Obviously, I am open to a denial of service attack.
>
> I am attempting to rectify the Server Message issue by
> displaying a blank screen for this instance.
>
> However, my real question is : When I telnet the well
> known port, I can see the 3-WAY-HANDSHAKE with my
> Sniffer. How long will the connection be established
> for ? My gut feeling is that this will be vendor
> dependant as either side can Reset or Tear down the
> TCP connection, but a rough idea would do.
>
> Phil.
>
>
>
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