X11 over SSH not working?

[Sunnz]

I did this in X11:
ssh -X name@linux

Then I tried to run mozilla-bin but it said:

xdpyinfo:  unable to open display "".
Unable to connect to X server

Gtk-WARNING **: cannot open display: 
mozilla-bin exited with non-zero status (1)

How do I make it work???

X on Linux is 6.8.2.

[Viro]

Dumb question time. Do you have X11 running on your Mac? If you do, have you correctly set up the DISPLAY variable?

[Sunnz]

I said:

I did this in X11:

In the very first sentence of the very first post...

[ElDiabloConCaca]

Try:

ssh -Y name@linux

I had to do the "-Y" to force X11 forwarding under X11 on my Mac OS X box... -X never worked for me.

[bluedevils]

Generally speaking, if you do an ssh -X, you do not need to set the DISPLAY variable. If it is not a security concern, you might want to try setting it, anyways.

I haven't tried doing this myself, but I just might when I get home.

[bluedevils]

always a minute too late

[Viro]

Serves me right for not getting enough sleep . Ah well, off to bed with me and I'll see if I can shed any light on it in the morning.

[Sunnz]

Ok it turns out that X11 forwarding was being turn off in sshd_config!

*slaps myself in the head*

It now works when I do ssh -X me@linux.

What's the difference anyway? Is X better than Y?

Also, what is the display variable about??? Would I be able to forward X11 to say a Window in Xnest?