X connection through router and firewall

From: Sourin (sourin_at_lycos.com)
Date: 06/11/04

  • Next message: Cameron Kerr: "Re: X connection through router and firewall" 
    Date: 11 Jun 2004 14:01:10 -0700

    Hello all,
    I am having problem in establishing an X connection with my work
    machine. Let me explain the situation in some more detail. All
    machines are running linux.

    My computer at work is behind a firewall. So, when I need to connect
    to it I have to ssh to hostA (firewall), which upon successful
    authorization, it connects me directly to hostB on my office network.
    If -X option is used with ssh, hostB tries to set its DISPLAY variable
    to hostA's display, which fails.

    At home I am using a DSL connection with a router. My home machine
    gets a static IP from the router. I have set my router to forward port
    22 to my machine and ssh connection to my home machine works fine. If
    I do ssh -X from my home machine to hostC ( which is on some other
    network and not behind any firewall ), I can open any X client on
    hostC successfully. Also I can open a sshed X connection on hostB from
    hostC after proper xauthorization ( hostB and hostC are on different
    network).

    I tried to forward the display port on hostB to my home machine port
    6000 using ssh -R option, but X server on my home machine is refusing
    that connection ( my router is also forwarding port 6000 ). I have
    added hostB's xauth magic key to my home machine's xauth list.

    Any suggestions.

    Thanks in advance.

  • Next message: Cameron Kerr: "Re: X connection through router and firewall"

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