Generate a key pair with ssh-keygen on Linux

Follow the steps below to generate a key pair with ssh-keygen  on Red Hat Linux
Replace : myserver1 and myserver2 with your server names

#SSH on both members of the cluster – Prepare SSH
/usr/bin/ssh-keygen -f /root/.ssh/id_dsa -q -t dsa -N ""
/usr/bin/ssh-keygen -f /root/.ssh/id_rsa -q -t rsa -N ""

cat /root/.ssh/id_dsa.pub >> /root/.ssh/authorized_keys2
cat /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys2

#On Node 1 (UKRHDB2P02)- in other words -
ssh myserver1 cat /root/.ssh/authorized_keys2 >> /root/.ssh/authorized_keys2

#On Node 2 (UKASDB2P02)- in other words -
ssh myserver2 cat /root/.ssh/authorized_keys2 >> /root/.ssh/authorized_keys2

#test
ssh <the other server> uname -a

 Ref:Jack Vamvas(http://www.dba-db2.com)