Red Hat Bugzilla – Bug 64307
openssh X forwarding does not reset $DISPLAY when a remote client logs on
Last modified: 2007-04-18 12:42:23 EDT
From Bugzilla Helper: User-Agent: Mozilla/4.77 [en] (WinNT; U) Description of problem: When a remote SSH client logs into the host, the DISPLAY variable should be set to client_ip_address:display.0 where display is some number greater than 10. client_ip_address is not properly set. Instead, $DISPLAY is set to localhost:display.0 where localhost is the word "localhost". Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. set ssh on the client to display remote X applications on local server 2. connect to server using ssh 3. echo $DISPLAY Actual Results: localhost:14.0 (14 may be some other number) Expected Results: 123.45.6.7:14.0 where 123.45.6.7 is the ip address of the remote machine and 14 is the "display" Additional info: This is relvant if the remote machine is tunneling to the linux server, e.g. through some NAT. A simple work-around is to let the .cshrc replace localhost with the correct ip address, but this should not be necessary.
I don't understand why it should be a problem? The localhost on the remote machine is the remote machine and the forwarding to the X server is done through the ssh encrypted connection.