port forwarding without the shell

From: Andrius Kurtinaitis (andrius.kurtinaitis_at_maf.vu.lt)
Date: 06/22/04

  • Next message: Darren Tucker: "Re: sftp and scp file size limit" 
    Date: Tue, 22 Jun 2004 15:15:26 +0300
To: secureshell@securityfocus.com

    Hello,

    is it possible to do "one-shot" port forwarding if I do not have any
    valid shell on the ssh server, I can only use it for port forwarding.

    I read, that the normal way is to use -f and sleep 10. But I can not
    sleep because I do not have any shell on the server side...

    Another question is - how can I start the port forwarding in the background?
    The problem is that openSSH requires a command if I want to use the
    option -f ("Cannot fork into background without a command to execute.").
    If I give some dummy command like "sleep 10", it sends it and gets reply
    immediately (because there is no shell on the server) and exits
    immediately...

    On the client side of ssh I use debian sarge or unstable
    (OpenSSH_3.8.1p1 Debian 1:3.8.1p1-4, OpenSSL 0.9.7d 17 Mar 2004).
    On the server side, I suspect, there is also some linux with openSSH,
    maybe Red Hat.

    Thanks

    Andrius Kurtinaitis

  • Next message: Darren Tucker: "Re: sftp and scp file size limit"

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