How to define SSH public keys

BOTH NODES
$/home/oracle
mkdir .ssh
chmod 777 .ssh
ssh-keygen -t rsa
ssh-keygen -t dsa


NODE1 Only:
cd /home/oracle/.ssh
ssh rac1 cat /home/oracle/.ssh/id_rsa.pub >> authorized_keys
ssh rac1 cat /home/oracle/.ssh/id_dsa.pub >> authorized_keys
ssh rac2 cat /home/oracle/.ssh/id_rsa.pub >> authorized_keys
ssh rac2 cat /home/oracle/.ssh/id_dsa.pub >> authorized_keys
scp authorized_keys rac2:/home/oracle/.ssh
scp known_hosts rac2:/home/oracle/.ssh