ssh between 2 machine without password

[Michael Velez]

> -----Original Message-----
> From: redhat-list-bounces at redhat.com 
> [mailto:redhat-list-bounces at redhat.com] On Behalf Of Rushan Sobar
> Sent: Saturday, March 05, 2005 7:35 AM
> To: General Red Hat Linux discussion list
> Subject: ssh between 2 machine without password
> 
> Hi,
> on the following steps
> 
> to generate a public/private DSA key pair on Ooga. 
>   ooga% ssh-keygen -t dsa -f ~/.ssh/id_dsa 
> 
> When you are asked for a passphrase, leave it empty. Now send 
> the public key to Booga. 
> 
>   ooga% cd .ssh
>   ooga% scp id_dsa.pub user at booga:~/.ssh 
> 
> Next, log in to Booga and add the public key to the list of 
> authorized keys. 
> 
>   ooga% ssh user at booga 
> 
>   booga% cd .ssh
>   booga% cat id_dsa.pub >> authorized_keys2
>   booga% chmod 640 authorized_keys2
>   booga% rm -f id_dsa.pub 
> 
> the filename is authorized_keys2, not authorized_keys. That's 
> it; now ready to ssh from Ooga to Booga without having to 
> enter a password. 
> 
> what if i want to be able to ssh from Booga to Oooga without 
> having to enter a password?
> 
> i mean the steps up enable to connect from Ooga to Booga 
> without pass but from Booga to Ooga it ask for pass, i want 2 
> way without pass!!
> 
> Anyhelp?
> 
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You need to do the same process you did before by inverting the commands you
do on ooga and booga.  That is, generate a dsa key on booga then take the
new id_dsa.pub that has been generated on booga and put it into the
authorized_keys (or authorized_keys2 depending on your config file) on ooga.
Same process but mirrored.

It's best to generate one key per direction, as opposed to just using the
previously generated key.

Michael