Configure user equivalence for user oracle RAC

[grid@rac1 ~]$ su - oracle
Password:
[oracle@rac1 ~]$ mkdir .ssh
[oracle@rac1 ~]$ ssh-keygen -t rsa
[oracle@rac1 ~]$ cd .ssh
[oracle@rac1 .ssh]$ ls
id_rsa  id_rsa.pub
[oracle@rac1 .ssh]$ cat id_rsa.pub >> authorized_keys
[oracle@rac1 .ssh]$ scp authorized_keys oracle@rac2:/home/oracle/.ssh
oracle@rac2's password:
authorized_keys                               100%  405     0.4KB/s   00:00   



On second node run the same commands to generate the keys, update authorized_keys file and send it to the other server. Then test the connection between nodes.

[oracle@rac1 .ssh]$ ssh rac1 date
[oracle@rac1 .ssh]$ ssh rac2 date