Setting up a remote connection for windowed Emacs on your home machine

If you haven't already, you must first set up PuTTy (Windows) or SSH (Mac). Instructions can be found here:

http://www.seas.upenn.edu/~cis1xx/resources/remoteLogin.shtml

If you have a Windows Machine:

• Install PuTTy from the instructions in the link above. Scroll to the middle to find the instructions for PuTTy.
  You can use SecureCRT also, but the support for windowed emacs below is for PuTTy.
• Download and install Xming
• Download and install Xming Fonts
• Open up PuTTy. Click on your SEAS profile, click LOAD so that eniac.seas.upenn.edu appears in the "Host Name" field.

  On the tree to the left, under where it says Connection, hit the [+] next to where it says SSH. Click on where it says X11. Check "Enable X11 Forwarding".

  On the tree to the left, click on "Session", and click "Save" (you must have your SEAS session selected and click "SAVE" or "Enable X11 Forwarding" will become unchecked.

• To connect, run Xming and PuTTy. After you log in, type emacs at the command line and emacs will start.

If you have a Macintosh Machine:

• You can use ssh to connect to eniac, and from there use emacs and gcc.
• % ssh myusername@eniac.seas.upenn.edu -X
• % emacs
• The '-X' is for X11, the unix windowing system
  • If the '-X' does not work, try '-Y' instead.
• If windowed emacs does not come up after you connect, you might not have X11 forwarding turned on. 
  • If you have OS X 10.4, use the instructions found here to install X11. X11 comes installed for 10.5 (leopard).
• In order to turn on X11 forwarding on a mac, you have to modify
  your sshd_config file.  Details can be found here, however modifying
  your config files is not recommended for novices.  If you are
  uncomfortable doing this, please ask a TA.
• If you want to edit and compile your code on your local machine without connecting, you need emacs and gcc installed:
  • Emacs should come installed as a standard package on Macintosh. If it isn't installed, you either need to find Emacs in the package selector (by inserting your Mac OS X Install Disk 1 into your CD Drive), or the program AquaEmacs has the same functionality as the GNU Emacs we use in the lab.
  • Gcc should also come installed, however if it is not you need to install XCode. To install XCode, insert your Mac OS X Install Disk into your CD Drive, double click on "XCode Tools", and follow the on screen instructions.
• Note: Sometimes emacs doesn't run on the normal Mac Terminal. If emacs doesn't run, try using Xterm rather than Terminal.