Re: ssh reverse forwarding - help

From: steve (steph19731_at_yahoo.com)
Date: 02/27/04 

Date: 26 Feb 2004 16:01:07 -0800

What exactly is it you are trying to do?

"SG" <sg@sg.com> wrote in message news:<vKq%b.21746$Bv6.3579604@news1.epix.net>...
> I can't seem to find the missing link, but feel sooo close. My scenario is,
> I would like remote users to be able to connect to an SSH server behind
> firewall and in a DMZ with a reverse forwarding tunnel configured such that
> I can connect to the SSH server from the INSIDE and have it forward the
> connection to their machine. That way I can connect via VNC viewer or RDP to
> the client machine with some sort of "secure" mechanism. I have successfully
> tested reverse forwarding from the Server to Client, but cannot do so with a
> third machine.
>
> Client A --------> SSH server (ssh -R 9000:clientpc_ip:5900 "ssh server
> ip")
>
> How do I get Client B to connect to SSH server on port 9000 and have it
> forward to client_pc port 5900???
> I can locally forward from Client A through SSH server to Client B or any
> other host/port till I'm blue in the face, but what am I missing going the
> other way? I thought reverse forwarding could be done the exact same way
> local forwarding works. Do I need to establish two connections, i.e. client
> A to SSH and client B to SSH, for this to work? If so, why don't I have to
> do the same for local forwarding and could this be accomplished with one
> client connection, i.e. client A --> SSH server, and then use IPTables to
> forward traffic on specific ports to the ports in the SSH tunnel? any help
> is greatly appreciated. Thanks.
>
> SG

Relevant Pages

  • Re: SSH Tunneling
    ... Can you explain what you mean by if your client can accept both ways? ... The problem is when I try to connect to the localhost on port ... >> the address of the ssh server and port 3389 and it work? ...
    (comp.security.ssh)
  • ssh reverse forwarding - help
    ... I would like remote users to be able to connect to an SSH server behind ... the client machine with some sort of "secure" mechanism. ... tested reverse forwarding from the Server to Client, but cannot do so with a ... How do I get Client B to connect to SSH server on port 9000 and have it ...
    (comp.security.ssh)
  • Re: How to change telnet service under ssh
    ... Look into port forwarding in e.g. ssh. ... ssh server machine). ... but my client is hard coding to connect to ssh port. ...
    (comp.unix.admin)
  • Re: Using port 143
    ... SSH normally uses port 22. ... Simply configure your SSH server and client to ... Putty can do that. ...
    (comp.security.ssh)
  • Re: sendmail log question?
    ... it was the latest FC8 update. ... kiddiez and 'bots that know that SSH servers only exist on port 22. ... firewall to temporarily open some other port (where the SSH server is ... This is much less common today, ...
    (comp.mail.sendmail)