X forwarding over multiple ssh tunnels?

From: Kamen Penev (kamen@penev.net)
Date: 02/28/03

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From: Kamen Penev <kamen@penev.net>
To: secureshell@securityfocus.com

    Hi!

    Is it possible to forward X window traffic over multiple ssh tunnels?

    I have machines A(cygwin), B(linux), and C(freebsd)

    I have an X-server running on A and DISPLAY=localhost:0

    I can
    ssh -X B

    and X clients will display on A.

    I would like to "ssh -X C" from B and have X-clients on C display on A,
    but I can't get it to work.

    Is this possible?

    I cannot ssh directly from A to C because B and C are behind a firewall
    and only B is exposed.

    Thanks.

    Kamen

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