Mulitiple RSA Keys

Reformed · 12-13-2003, 01:34 PM

I am trying to use some rsa keys to run backup scripts via cron, ssh and rsync. I have a backup server in my apartment that connects to a remote host in another state and grabs all changed files. To automate this processes I used the following commands with success:

Code:

ssh-keygen -t dsa 
scp .ssh/id_dsa.pub [email]user@myhost.com:~/
ssh [email]user@myhost.com
cat id_dsa.pub >> .ssh/authorized_keys2

Now, this worked for the first machine, but now I need this same machine, the one in my apartment, to connect to another server to run backups the same way. How do I set up another key pair, or do I just use the same one for the other server? I have generated a new set and named it differently (if I don't, I'll overight the existing one that works for the first server) but it didn't work. Help, please

david_ross · 12-13-2003, 01:37 PM

Welcome to LQ.

You just need to copy the public key to the authorized keys file on the other computer too. you don;t need to create a new set.

Reformed · 12-13-2003, 01:56 PM

Okay, thanks for the help. I copied my existing public RSA key over to the second server's authorized_keys2 file and I can see that it's there, but I am still being prompted for a password on that second machine. Pretty strange. Does the key on remote server just look for a match on the client regardless of who the user is? Not sure how this works.

Reformed · 12-13-2003, 02:02 PM

Funny thing. The first time I tried getting in it didn't work, but now it does. Thanks for the help.