Generating public/private dsa key pair.

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /etc/ssh/ssh_host_dsa_key.

Your public key has been saved in /etc/ssh/ssh_host_dsa_key.pub.

The key fingerprint is:

xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx root@localhost.localdomain

#ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key

Generating public/private rkey pair.

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /etc/ssh/ssh_host_rsa_key.

Your public key has been saved in /etc/ssh/ssh_host_dsa_rey.pub.

重启ssh,完成