5. Testing it all out

Using ssh

• Log in to the client machine and open Terminal ( /Applications/Utilities/Terminal )
• Connect using ssh
• If the server username is the same as your local username : Type ssh serverhostname and press Enter
• If the server username is different from your local username : Type ssh -l serverusername serverhostname and press Enter. (That's a lowercase ell.)
• Because this is our first-time connection you will see the following:

[localhost:~] djclark% ssh 192.168.0.3
The authenticity of host '192.168.0.3 (192.168.0.3)' can't be established.
RSA key fingerprint is 11:d4:eb:60:f2:32:ae:a5:00:9d:cf:71:9d:43:b5:8d.
Are you sure you want to continue connecting (yes/no)? 

• Type yes to continue. This step adds the server's public key to your known hosts file (~/.ssh/known_hosts2). ssh will then tell you that it has added the key:

Warning: Permanently added '192.168.0.3' (RSA) to the list of known hosts.

• The next thing that will appear is a password prompt. Enter the password you entered into SSH Helper

Enter passphrase for key '/Users/djclark/.ssh/id_dsa': 

• You will then be shown a prompt. Congratulations, you are now logged in.

Welcome to Darwin!
[localhost:~] djclark% 

Summary

Welcome to the world of encrypted communications.