Setting up ssh2 / scp2 to Connect Without Passwords
			By Ed, 12-21-99
			Updated 4-19-05
		      www.narced.com/linux


This document will describe how to connect (with ssh2)  or copy files
(with scp2) from a "local" server to a "remote" server WITHOUT
passwords. This document assumes that ssh2 is already installed and works
correctly for normal password-based ssh2 connections.


Assume there are 2 systems, "local" and "remote". To set up ssh2/scp2
to connect between the servers WITHOUT passwords, do the following:


STEP 1:
On "local," run the ssh-keygen command, and DO NOT enter an RSA passphrase
(just hit "Enter" twice). This will create the following files:

	$HOME/.ssh2/id_dsa_1024_a
	$HOME/.ssh2/id_dsa_1024_a.pub

Rename these files:

	id_dsa_1024_a      -->	local.id_dsa_1024_a and
	id_dsa_1024_a.pub  -->	local.id_dsa_1024_a.pub


STEP 2:  
Repeat STEP 1 for "remote". Run ssh-keygen (with no RSA passphrase), and
then rename the files:

	id_dsa_1024_a      -->	remote.id_dsa_1024_a and
	id_dsa_1024_a.pub  -->	remote.id_dsa_1024_a.pub


STEP 3:
Copy the *.pub files to opposite servers. Copy remote.id_dsa_1024_a.pub to
"local" and local.id_dsa_1024_a.pub to "remote".


STEP 4:
Create authorization and identification files on local and remote.

The authorization file should contain the filenames of all of the public
keys of remote servers you want to allow to connect.

authorization (for local)
-------------
Key local.id_dsa_1024_a.pub
Key remote.id_dsa_1024_a.pub


identification (for local)
--------------
IdKey local.id_dsa_1024_a



authorization (for remote)
-------------
Key remote.id_dsa_1024_a.pub
Key local.id_dsa_1024_a.pub


identification (for remote)
--------------
IdKey remote.id_dsa_1024_a



That's it! Now assuming you used the correct usernames, commands like the
following should work:

	<from local> ssh2 -l joe remote.server.com
	<from local> scp2 joe@remote:/directory/file /myhome/myfiles/file

	<from remote> ssh2 -l bob local.server.com
	<from remote> scp2 bob@local:/otherdirectory/differentfile /joe




    NEW --- NEW --- NEW --- Added 12-18-00 --- NEW --- NEW --- NEW

        How to setup SSH1 to login using public key authentication
				By Dave

1.  Run 'ssh-keygen1' on MACHINE A and DO NOT enter an RSA passphrase.  
This will create 'identity' and 'identity.pub' in your '$HOME/.ssh'
folder.

2.  On MACHINE B, create a file in '$HOME/.ssh' called 'authorized_keys'  In
this file place the CONTENTS of the file 'identity.pub' that was created on
MACHINE A when you ran 'ssh-keygen1'

3. That's it!  You can now go from MACHINE A to MACHINE B by using public key
authentication.  



- - - - - - - - -  Added 4-19-2005  - - - - - - - - -

How to connect from a box running ssh.com's ssh to a box running OpenSSH:

[ssh.com] ssh-keygen
copy pub key to openssh server's .ssh/ directory
[on openssh server] ssh-keygen -i -f id_dsa_1024_a.pub >> authorized_keys2