I have a .bash_aliases file with several aliases which I use to connect to Windows machines. The aliases are set up like this:
rdesktop -d domain -u username -p password -k fr-be -g 1920x1024 -T Customer-SupportPC -a 24 IP
Yesterday the connection was working fine, today the connection gives me following error:
ERROR: Failed to open display:
SSH sessions are no problem, it's only a problem with rdesktop to a Windows server. X11 forwarding is set to yes in /etc/ssh/sshd_config