ssh-keygen -f /var/lib/glusterd/geo-replication/secret.pem
Generating public/private rsa key pair.
/var/lib/glusterd/geo-replication/secret.pem already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /var/lib/glusterd/geo-replication/secret.pem.
Your public key has been saved in /var/lib/glusterd/geo-replication/secret.pem.pub.
The key fingerprint is:
51:1b:67:4a:cf:56:04:7b:19:e1:89:ac:26:01:b4:c2 root@cluster01
The key's randomart image is:
+--[ RSA 2048]----+
|     .o   + +o=. |
|   .   o o X = + |
|    E . o o B =  |
|     .   o o .   |
|        S o      |
|         o       |
|                 |
|                 |
|                 |
+-----------------+
ssh-copy-id -i /var/lib/glusterd/geo-replication/secret.pem.pub root@cluster04
root@cluster04's password:
Now try logging into the machine, with "ssh 'root@cluster04'", and check in:
  ~/.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.