[LinuxUsers] SSH Public Key Authenticatio

[Paul Saenz]

Using Peter Manis' tutorial on Public Key authentication at URL:
http://pyverted.com/sysadmin/ssh-public-key-authentication/2008/10/
I was able to get SSH up and running with a public key authentication 
on my friend sam's computer. Everything worked great.
I did not execute the commands:
exec ssh-agent /bin/bash
ssh-add

until the next day, when I realized that I had not done
it the day before. The two computers were not connected
when I executed these commands. I am assuming that these 
commands can be executed on the local machine only, and 
the remote machine doesn't need to know about them.
am I correct.

also, when I did the command:
sudo /etc/init.d/sshd reload

bash reported: "command not found"

nevertheless, I want the 2 features that this command provides,
which are:

1. Removes the ability to login to the server with a password, you can only login to the server using a public key.
2. Limit the machine that you can login from. The remotemach must
have the key for the localmach in the authorized_keys file before
authentication can be performed.
Is there something I can to to configure these features, or is there a way to addthese commands to my bash commands?Thanks



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