node1
[oracle@node1 ~]$ ssh-keygen -t rsa
[oracle@node1 ~]$ ssh-keygen -t dsa
[oracle@node1 ~]$ cd .ssh
[oracle@node1 ssh]$ cat *.pub >> authorized_keys
node2
[oracle@rac2 ~]$ ssh-keygen -t rsa
[oracle@rac2 ~]$ ssh-keygen -t dsa
node1
[oracle@rac1 ssh]$ scp authorized_keys node2:/home/oracle/.ssh/
node2
[oracle@rac2 ~]$ cd .ssh
[oracle@rac2 ssh]$ cat *.pub >> authorized_keys
[oracle@rac2 ssh]$ scp authorized_keys node1:/home/oracle/.ssh/
验证等效性
[oracle@node1 ~]$ ssh node1 date
[oracle@node1 ~]$ ssh node1-priv date
[oracle@node1 ~]$ ssh node1 date
[oracle@node1 ~]$ ssh node1-priv date
[oracle@node2 ~]$ ssh node2 date
[oracle@node2 ~]$ ssh node2-priv date
[oracle@node2 ~]$ ssh node2 date
[oracle@node2 ~]$ ssh node2-priv date
