I downloaded and installed a new copy of Fedora 11 last week onto a new computer (hereafter "proximate"). I also have a remote computer without a monitor running an outdated version of Red Hat Linux (hereafter "remote"). To manage the processes on remote graphically, I ssh from proximate into remote; this connection succeeds without incident in transmitting text (including commands) between the two computers; however, the command "gnome-session
(gnome-session:15789): Gtk-WARNING **: cannot open display:
(The numbers apparently represent the process identifier and vary from instance to instance.) A similar warning (and no accompanying graphics) occurs whenever I attempt to start any graphical user interface from remote via ssh from proximate. The issue almost certainly lies with proximate; remote successfully communicated graphics to the ancient box that proximate replaces.
Interestingly, I cannot communicate via ssh from remote to proximate (within a secure shell from proximate to remote). If I execute /usr/sbin/sshd
on proximate as root, then I can login, but even then I cannot execute any commands.
Consider the following output:
[snowmanwx@proximate ~]$ su
[root@proximate jpetre]# ssh remote
Last login: Mon Oct 19 12:10:22 2009 from proximate
[root@aqmodel ~]# gnome-session
(gnome-session:15879): Gtk-WARNING **: cannot open display:
[root@remote ~]# ssh proximate
Last login: Mon Oct 19 18:24:58 2009 from remote
Connection to proximate closed.
If I execute ssh -vvv proximate
from remote to proximate, then I get a lengthy output that ultimately ends with "debug1: Exit status 254
What must I do to communicate both text and graphics among my computers? Thank you for any assistance.