What is SSH

At the most basic level, a replacement for telnet.

Why SSH?

Clear text passwords are bad

lots of things you might not want to type in the clear

Lets look at example

How to use

Clients available for many platforms:

ssh for unix

openssh (unix)

terraterm ssh(windows)

Nifty telnet+ssh(macintosh)

ssh for palm

ssh for windowsce

Server available for:

Unix

VMS

CISCO IOS

other

Installing the Unix client/server package

untar the package

tar -zxvf ssh-1_2_27_tar.gz

cd ssh-1.2.27

./configure

make

make install

take a look at:

• /etc/ssh_config

• /etc/sshd_config

to make sure config matches your expectations.

start sshd, /usr/local/sbin/sshd

To start sshd at boot:

• go to /usr/local/etc/rc.d

• create and edit the file sshd.sh emacs -nw sshd.sh
  #!/bin/sh
/usr/local/sbin/sshd


DONE

Other things you can do with ssh

password-free logins(replacement for rsh/rlogin/rcp)

tunneling for other applications