KU Mathematics Using SSH for Remote Login

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KU Mathematics: Using SSH for remote login

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Remote login: SSH

What is SSH?

SSH is a protocol that lets you log in to a machine securely.

SSH versus telnet

SSH is much like telnet (although it's even more similar to another login protocol and program rsh).

Telnet service has not been offered since 2002 for security reasons.

Where to log in

For regular shell access, log in to:
pascal.math.ku.edu

Getting a program for SSH

From Unix-like machines	Just run `ssh` at the command line
Mac OS X	Also run `ssh` at the command line
Mac OS 8/9	NiftyTelnet SSH: download
	This file will uncompress into a folder (probably on your desktop). Inside that folder, double-click the program "NiftyTelnet 1.1 SSH r3".
Windows	Putty: download
	Download this program to a folder on your computer (the Desktop is a fine choice), and after it's downloaded, double-click it to run the program.

About Host keys

In using SSH, each machine (e.g. pascal, quendi) has a public and private keys. The first time you use SSH to connect to one of these machines, your SSH program will probably ask you to confirm that you still want to connect to this machine. Answer "yes", or click the option that saves this key.

On subsequent connections to the same machine, your SSH program will check that these keys haven't changed, so that you know that you know this is still the same machine, i.e., that someone hasn't hijacked that hostname and sent your connection elsewhere.