ssh with RSA cert

umarzuki · 09-14-2009, 10:14 PM

I tried to connect to a linux server with rsa cert via ssh. What I did:

Create private key (test_priv.ppk) and public key (test_pub) with puttygen (in windows server)

Copy the public key to the linux server as user1, convert it

Code:

ssh-keygen -if test_pub >> test_pub_new
cat test_pub_new >> .ssh/authorized_keys

as root

Code:

chmod 600 /home/user1/.ssh/
chmod 700 /home/user1/.ssh/authorized_keys

I uncomment below in /etc/sshd/sshd_config

Quote:

RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys

On win server, I add test_priv.ppk as authentication file for putty (SSH > Auth)

Restarted sshd on linux server, but I still got "Server refused our key" when I log in as user1

Matir · 09-14-2009, 10:39 PM

Try increasing your verbosity in putty (not quite sure where that setting is in putty, but try openssh would use ssh -vv or similar) and see if more details are provided. Also, the directory should be 700 perms and the file 600 -- so double check your permissions there. Also, your server logs in /var/log/messages might provide some insight into what's going on.

umarzuki · 09-15-2009, 12:25 AM

Thanks for the suggestion.

I finally can ssh from windows with sshwindows http://sshwindows.sourceforge.net/download/
Installed it and I did like normally would in linux.

Works great!

Now I need to find a way to try use pin authentication (usb dongle) with ssh for my ePass2000