Xorg tcp socket

onami · 2005-10-04 11:08:51

hello,

after yesterday's update, after connecting through ssh on another machine, and after xhost +,
exporting the DISPLAY from the ssh connection to onami:0 (my host), it says

igrigore@hydra:~$ xedit
Error: Can't open display: onami:0

And netstat on my machine (onami):

sudo netstat -tpan

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 2853/sshd
tcp 0 0 10.3.2.24:32780 10.2.4.65:143 ESTABLISHED 5506/thunderbird-bi
tcp 0 0 10.3.2.24:59591 10.3.2.10:22 ESTABLISHED 5456/ssh
tcp 0 0 10.3.2.24:59664 216.155.193.153:5050 ESTABLISHED 5443/gaim
tcp 0 0 10.3.2.24:22 10.3.2.23:40248 ESTABLISHED 4057/sshd: cristi [

the 6000 port on my machine is not opened, so X server does not receive remote connections.

i found this on google few month ago when i was struggleing to help a friend pass this problem, but here that file is missing:

"Set DISPLAYMANAGER_XSERVER_TCP_PORT_6000_OPEN="yes" in the /etc/sysconfig/displaymanager file"

does anyone know where can i enable the tcp socket connection to my X server, instead of a unix socket one ?

sh__ · 2005-10-04 12:30:49

I'm not sure if I'm reading your question right, but usually you can forward X11 connections over ssh without opening the port 6000 on the server. There should be no need to play with the xhost command either.

The machine running sshd (let's call it remotehost) should be configured to allow X11 forwarding over ssh. This is accomplished if /etc/ssh/sshd_config on remotehost contains the line

X11Forwarding yes

Also, /etc/hosts.allow should be configured to allow incoming ssh connections:

sshd: ALL

or you can restrict it to a certain ip range (see wiki).

Now you should be able to start xedit on remotehost by using the following command on another machine (call it localmachine):

ssh -fX remotehost xedit

Ssh should take care of setting the right DISPLAY variable for localmachine.

onami · 2005-10-05 06:23:08

X11Forwarding yes

is set on the host that receiveis the ssh connection.
that is not the problem, the problem is that my X11 server does not open the 6000 port, for remote connections, it opens a unix socket instead.

ssh -fX igrigore@hydra nedit
igrigore@hydra's password:
[ionut@onami ~]$ NEdit: Can't open display

if the X server opens a tcp socket, and i give

xhost +

any host on the network that uses my display and opens a X application, will open that application on my X, my computer.

But I can't open a darn X app on the remote host.

onami · 2005-10-05 21:29:56

I found the problem :
X connections were blocked from gdm, i just unchecked that checkbox

Arch Linux

#1 2005-10-04 11:08:51

Xorg tcp socket

#2 2005-10-04 12:30:49

Re: Xorg tcp socket

#3 2005-10-05 06:23:08

Re: Xorg tcp socket

#4 2005-10-05 21:29:56

Re: Xorg tcp socket

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