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Old 08-06-2010, 10:09 AM
"Burke, Thomas G."
 
Default EXTERNAL:firefox

You're running an X application from remote? Did you set your display
environment variables to point back to the machine your working from?
Does the firewall allow X connections?

-----Original Message-----
From: redhat-list-bounces@redhat.com
[mailto:redhat-list-bounces@redhat.com] On Behalf Of Joy Methew
Sent: Friday, August 06, 2010 2:44 AM
To: General Red Hat Linux discussion list
Subject: EXTERNAL:firefox

hello all,
i have centos system remotely. i login there via ssh
-X
server ip.
i am trying run firefox there it`s showing some error like that.

Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Error: cannot open display: :0.0

any suggestion...it`s urgent.

thanks
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Old 08-06-2010, 10:39 AM
Joy Methew
 
Default EXTERNAL:firefox

Hello,
Thanks for ur valuable time.
yes i want run startx command on my remote server to access my remote
desktop. bcoz i can`t configure vnc by command...i try for it it`s not
working so i need my remote desktop.

i din`t set my display environment variables ...can u please suggest me
how i can do this?

yes my firewall is flush.




On Fri, Aug 6, 2010 at 3:39 PM, Burke, Thomas G. <tg.burke@ngc.com> wrote:

> You're running an X application from remote? Did you set your display
> environment variables to point back to the machine your working from?
> Does the firewall allow X connections?
>
> -----Original Message-----
> From: redhat-list-bounces@redhat.com
> [mailto:redhat-list-bounces@redhat.com] On Behalf Of Joy Methew
> Sent: Friday, August 06, 2010 2:44 AM
> To: General Red Hat Linux discussion list
> Subject: EXTERNAL:firefox
>
> hello all,
> i have centos system remotely. i login there via ssh
> -X
> server ip.
> i am trying run firefox there it`s showing some error like that.
>
> Xlib: connection to ":0.0" refused by server
> Xlib: No protocol specified
>
> Xlib: connection to ":0.0" refused by server
> Xlib: No protocol specified
>
> Error: cannot open display: :0.0
>
> any suggestion...it`s urgent.
>
> thanks
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>
> --
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Old 08-06-2010, 01:16 PM
"Mike Burger"
 
Default EXTERNAL:firefox

The firewall shouldn't have to allow X connections if he's tunneling back
through SSH...that's one of the main points of SSH tunneling.
Additionally, the display variable appears to have been set, as evidenced
by the "localhost:0.0" error.

One thing to check on the remote system, in /etc/ssh/sshd_config, is for
the presence of:

X11Forwarding yes

in order to ensure that the SSH daemon is allowing X11 forwarding. The
default setting is "no". If it is not set, then Joy would need to modify
the sshd_config and then restart sshd (or have both done for him by the
remote server's admin).

Also, OpenSSH's default offset is 10, rather than 0...so, usually, the
display variable would read as "localhost:10.0" rather than
"localhost:0.0"...that may need to be investigated in the sshd_config, as
well.

> You're running an X application from remote? Did you set your display
> environment variables to point back to the machine your working from?
> Does the firewall allow X connections?
>
> -----Original Message-----
> From: redhat-list-bounces@redhat.com
> [mailto:redhat-list-bounces@redhat.com] On Behalf Of Joy Methew
> Sent: Friday, August 06, 2010 2:44 AM
> To: General Red Hat Linux discussion list
> Subject: EXTERNAL:firefox
>
> hello all,
> i have centos system remotely. i login there via ssh
> -X
> server ip.
> i am trying run firefox there it`s showing some error like that.
>
> Xlib: connection to ":0.0" refused by server
> Xlib: No protocol specified
>
> Xlib: connection to ":0.0" refused by server
> Xlib: No protocol specified
>
> Error: cannot open display: :0.0
>
> any suggestion...it`s urgent.
>
> thanks
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>


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