## Getting Started
- 1. Pick a machine to run your screen session on. If you don't know of any options, linux.mit.edu (Linerva) is a good choice.
- 2. ssh to that machine.
+ 1. Pick a machine to run your screen session on. If you don't know of any options and you're just starting out, you can ssh into athena.dialup.mit.edu (Athena Dialup). This will pick a machine by round-robin; you should be greeted by a prompt that says something like yourkerberos@foobarbaz.mit.edu. foobarbaz.mit.edu will be the machine that you'll host your session on.
+ 2. ssh to the machine you chose in step 1. Remember it for future reference. If you want a shorter name for foobarbaz.mit.edu you can type `stella foobarbaz` at an Athena prompt; one or several shorter aliases should be listed, such as, hypothetically, `fbb`. On the MIT network, you don't even have to type `.mit.edu`, so you can just `ssh yourkerberos@fbb`.
3. run `screen`
4. Do stuff.
but doing it when you're not sure where else your screen might be
attached has privacy implications.
-##Switching Between Windows
-C-a C-a allows you to switch between windows incrementally. If you have created 3 windows and find your self at the 0th window, then C-a C-a will put you in the 1st window, then C-a C-a again will put you in the 2nd one. You can also move around in the windows by using C-a [index number of the window]. Such that C-a[1] would accomplish the same thing as C-a C-a when you were on the 0th window.
-
-
## For More Information
`screen` can do lots of stuff. If you have a while to burn, run
`man screen` at the shell prompt. It may be helpful to do this
inside of `screen` so you can put it down and come back to it later.
-## TODO
-clean up, explain the "C-a C-a" notation better.
+Some people (including the author of this sentence) use `tmux` instead of
+`screen`; it can do all of the same things `screen` can, and may be easier to
+customize.
+
+Also, instead of normal `ssh`, you can use `mosh` (the mobile shell) to connect
+to the Athena machine; it will be able to reconnect automatically if you lose
+your Internet connection momentarily. An example alias:
+
+ alias athmosh='mosh --server="athrun mosh_project mosh-server" --ssh="ssh -K"'
+
+`ssh -K` will pass along Kerberos tickets from your own machine, so if you
+first run `kinit yourkerberos@ATHENA.MIT.EDU` and type your password on your
+computer, you won't need to re-authenticate when running this command. You can
+invoke this as `athmosh yourkerberos@fbb`.