Group: comp.os.linux.networking
From: Andrew Gideon
Date: Tuesday, March 18, 2008 11:56 AM
Subject: Re: creating ssh key with no passphrase

On Mon, 17 Mar 2008 22:24:31 +0000, Ron Eggler wrote:

> Ah, I'm not sure if I got it, I tried: ssh-keygen -N '' -C backup1 -t
> rsa -f ~/.ssh/id_rsa and copied the ~/.ssh/id_rsa.pub porrtion into the
> server's ~/.ssh/known_hosts but for some reason it wouldn't let me in...
> Any ideas what i could have done wrong? Or is my keygen command
> "corrupt"?

It looks like you found your previous problem (-N=""). As to why the key
is not working, you need to put the public part in the destination
login's authorized_keys2 file.

known_hosts doesn't solve the client authentication problem (let me
login!) but the server authentication problem (is the server into which
I'm logging in really what I think it is?).

BTW, I'd not generally name the key id_rsa. That has a special meaning.
I'd call it something else, and then explicitly use it either via "ssh -i
keyname" or by placing an entry for the server in the client login's
~/.ssh/config file.

- Andrew

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