From A Mac Computer

1. Make sure you are connected to the internet.
2. Open "/Applications/Utilities/X11.app" on your Mac. On my computer it came installed by default. If you don't have it, you will need to reinstall it from your system disks.
3. If a terminal window is not open, then: Go to "Applications/Terminal" or press Cmd-N to make a new terminal window.
4. In the terminal type "ssh -Y username@host" and hit Enter. E.g., I would type "ssh -Y ude.drofrevah.retsulc-csnik.1sw|reirhcsj#ude.drofrevah.retsulc-csnik.1sw|reirhcsj"
5. Enter your password, and you are now logged on remotely!

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If you don't already have X11 installed:

Installing X11 Under Mac OS X 10.4 (Tiger)
Installing X11 Under Mac OS X 10.5 (Leopard)

Both of the above instructions require you to use the OS disks that either came from your computer (or that you used for your last upgrade).

If you don't have these, here is the X11 package for Tiger and the most recent third-party X11 package for Leopard. Note that these require you to restart after installation.

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After you get this working, next step is to try to edit a file. [http://h205.wikidot.com/how-to-edit-files]