DELL S50V User Manual

Security | 939

RSA Authentication of SSH

The following procedure authenticates an SSH client based on an RSA key using RSA authentication. This 
method uses SSH version 2:

Host-based SSH Authentication

Authenticate a particular host. This method uses SSH version 2.

1

 On the SSH client (Unix machine), generate an RSA key, as shown in 

2

Copy the public key id_rsa.pub to the Dell Force10 system.

3

Disable password authentication if enabled.

CONFIGURATION

4

Enable RSA authentication.

EXEC Privilege

5

Bind the public keys to RSA authentication.

ip ssh rsa-authentication 
my-authorized-keys flash://
public_key

EXEC Privilege

FTOS(conf)#ip ssh server enable

                % Please wait while SSH Daemon initializes ... done.

FTOS(conf)#ip ssh password-authentication enable

FTOS#sh ip ssh

SSH server                 : enabled.

Password  Authentication   : enabled.

Hostbased Authentication  : disabled.

RSA       Authentication  : disabled.

admin@Unix_client#ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/home/admin/.ssh/id_rsa):

/home/admin/.ssh/id_rsa already exists.

Overwrite (y/n)? y

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /home/admin/.ssh/id_rsa.

Your public key has been saved in /home/admin/.ssh/id_rsa.pub.