Added instructions for how to SSH into linerva.

diff --git a/doc/UsingZephyr b/doc/UsingZephyr
index d9a22efbe554bea6dd239335687f9e049fb464e3..3be631e4815553cbc2685ce65185f8f37e8d232a 100644 (file)
--- a/doc/UsingZephyr
+++ b/doc/UsingZephyr
@@ -26,6 +26,8 @@ Using Barnowl is recommended, as it is better supported and more documentation e
 
 === Using Barnowl ===
 
+You will need access to an Athena machine to run barnowl.  The easiest way to do this would be to SSH into linerva.mit.edu.  On a Debian-based linux distro, open up a terminal and type {{{sudo aptitude install ssh; ssh <username>@linerva.mit.edu}}}.  On Windows, download a SSH client (such as PuTTY, at http://chiark.greenend.org.uk/~sgtatham/putty/download.html) and install it.  Once you've opened it, type {{{<username>@linerva.mit.edu}}} into the prompt and hit enter.  On a Mac, open Terminal from the Utilities Folder in Applications. Type {{{kinit <username>ATHENA.MIT.EDU && ssh -K <username>@linerva.mit.edu}}} (In all these cases, don't include the angle brackets, just replace <username> with your MIT username).  You will then be prompted for your password.  Enter it, and then carry on with running barnowl!
+
 To start barnowl, run the command {{{add barnowl; barnowl}}} at the prompt on any Athena machine or dialup, such as linerva.mit.edu.
 
 The simplest use of Zephyr is to send personal zephyrs to other users. To send a zephyr, type : to bring up a command line, and run the command {{{zwrite USERNAME}}}. You can also start a {{{zwrite}}} command by simply typing z.