connection to ":0.0" refused by server

t1z1an0 · 04-13-2003, 07:12 AM

Hi everybody,

When I try to use some program (like emacs) that use X after loggin as root with the command "su" I receive this message:

tizamd:/home/tiziano/suse8 # emacs
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

emacs: Cannot connect to X server :0.0.
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.

What can I do?

Thanks a lot! Bye

Mara · 04-13-2003, 12:21 PM

How do you start the programs? Make sure you do it from X. If you do and there's still error use
xhost +

zovres · 04-13-2003, 12:41 PM

yes xhost + is important to tell your x server not to block (don't forget to xhot - when you are done, or you can xhot a specific ip if you want)
and be sure that your firewall is not blocking port 6000

Mara · 04-13-2003, 12:48 PM

xhost + is not very safe and if you have problems with running X on your local machine (not from network), it's better to block port 6000, especially if you've connected to the Net.

t1z1an0 · 04-14-2003, 12:44 PM

xhost +
works!!!
Thank you!

acid_kewpie · 04-14-2003, 01:05 PM

to make it safer, try "xhost +localhost"