I have a problem relating to SSH and how it handles the creation of new xterm windows. I have an account at my school, and I can log in via SSH using "ssh -l login_name server_name". When in the labs on campus, there is an X Windows environment, and when certain programs are run (e.g. Matlab, emacs), another xterm window will be created.
Why would running emacs or matlab create a new xterm? Wouldn't they create a new emacs or matlab window, respectively?
However, when I log in remotely using the above command, and run "matlab" or "emacs", the system just seems to hang, not creating a new xterm window. I looked around for a solution, and it seemed that it might be in the /etc/ssh/ssh_config file. However, this is read-only and cannot be modified, nor can the permissions be changed using chmod. Any suggestions?
The first useful debugging tool for potential ssh issues is the "-v" switch. Try "ssh -v -l login_name server_name" and watch the exciting output.
Make sure you see something like
debug1: Requesting X11 forwarding with authentication spoofing. debug1: channel 0: request x11-req
Then try running 'xterm' on the remote system and see what output you get. I see something like the following:
debug1: client_input_channel_open: ctype x11 rchan 3 win 65536 max 16384 debug1: client_request_x11: request from 127.0.0.1 52686 debug1: fd 7 setting O_NONBLOCK debug1: channel 1: new [x11] debug1: confirm x11
It's odd that your application just hangs... usually it will either succeed or return an error message.
