TROUBLESHOOTING ON WINDOWS
If you see the following error "Error: Can't open display:", this means the Xterm is not setup properly . Do the follwoing steps before you connect remotely i.e. ssh -Y <remotehost>
a. open a new cygwin window.
b. Type the following command "startxwin.bat" in the cygwin window. If this step fails then you might have to reinstall cygwin with xterminal.
c. In Windows Vista or Xp the system should prompt to allow/block this feature. Select Unblock. If you donot allow this, xsis will not work on your system.
d. Type "DISPLAY=$MACHINE_NAME:0.0" where $MACHINE_NAME is your machine name or your IP address. Remember, you cannot use the IP address assigned by your wireless router. You must use a physical connection. (For eg:DISPLAY=128.59.15.211:0.0)
e. Then type "export DISPLAY".
f. Use ssh -Y -l<loginname> clic.cs.columbia.edu to connect to a remote PC.
g. Do "export PATH=$PATH:~cs6861/sis1.3/bin"
h. Try running xsis again. (xsis -sis ~cs4861/sis1.3/bin/sis)
If you face any other error due to cygwin, look at the faq's in the cygwin website.
TROUBLESHOOTING ON LINUX
If you see the following error "Error: Can't open display:", this means the Xterm is not setup properly .
Open a Terminal. Type "DISPLAY=$MACHINE_NAME:0.0" where $MACHINE_NAME is your machine name or your IP address. Remember, you cannot use the IP address assigned by your wireless router. You must use a physical connection. (For eg:DISPLAY=128.59.15.211:0.0) Then type "export DISPLAY" and try again.