On both nodes:
==============
127.0.0.1 localhost.localdomain localhost
# Public Network - (eth0)
192.168.0.101 oraracn1.oraclegenesis.com oraracn1
192.168.0.102 oraracn2.oraclegenesis.com oraracn2
# Private Interconnect - (eth1)
10.10.10.101 oraracn1-priv.oraclegenesis.com oraracn1-priv
10.10.10.102 oraracn2-priv.oraclegenesis.com oraracn2-priv
# Public Virtual IP (VIP) addresses - (eth0:1)
192.168.0.105 oraracn1-vip.oraclegenesis.com oraracn1-vip
192.168.0.106 oraracn2-vip.oraclegenesis.com oraracn2-vip
# Single Client Access Name (SCAN)
192.168.0.110 orarac-scan.oraclegenesis.com orarac-scan