Re: Running emacs through ssh problem

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On Fri, Mar 12, 2004 at 07:40:26PM -0500, Scott A. Zanke wrote:
> Hello,
> I have a small home network running three linux boxes and one wintel
> box. All are connected through a Linksys BEFSR11 router and internet,
> NFS and samba are all working fine. Here's the setup..
> Kiwi - 192.168.1.2 - Web and mail server running RH7.3
> Mango - 192.168.1.5 - Files and Print server running Fedora Core 1.
> Kahuna - 192.168.1.3 - Fedora Core 1 Workstation
> Grape - 192.168.1.4 - Win98 box
> 
> Kiwi is headless and I administer it from Kahuna thru ssh using emacs or
> vi and everything works well.
> I just set up Mango as the file and print server for the network. I did
> a custom server install of Fedora on this box. The problem is that I
> can't run emacs when I ssh into it from Kahuna and I'm just learning vi.
> I can run emacs -nw whateverdoc or emacs -d 127.0.0.1:10 whateverdoc but
> if I run emacs whateverdoc I get the following error...
> 
> [root@mango root]# emacs whateverdoc
> _X11TransSocketINETConnect: Can't get address for localhost
> emacs: Cannot connect to X server localhost:10.0.
> Check the DISPLAY environment variable or use `-d'.
> Also use the `xhost' program to verify that it is set to permit
> connections from your machine.

I suspect a ForwardX11 problem in ~/.ssh/config.

There have been reports of emacs failing where other X programs
work. Try xclock on Kahuna and see if it displays on Mango. If it
does, it's an emacs problem. I haven't seen it, though.

You might find this useful as a checklist, although it's a bit
dated. http://www.charlescurley.com/OpenSSH.html

If all else fails, you can run emacs without X via a command like
option. See emacs' info for details. But the X interface is better.

> 
> Here's some netstat output when I'm on Mango..
> [root@mango root]# netstat -nlp |grep 6000
> tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 5160/X
> 
> Here's some netstat output when I'm on Kahuna
> [root@kahuna root]# netstat -nlp |grep 6000
> tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 24094/X

SSH tunnels X; you might even close these ports with the firewall.

> 
> When I'm sitting at Mango console I can ssh into either Kiwi or Kahuna
> and run emacs with no problems.
> 
> Any ideas?
> 
> Thanks,
> Zank
> 
> 
> 
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-- 

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