primary: sync ./failover.sh -P 192.168.56.113 -S 192.168.56.114 -H 192.168.56.113 secondary: ./failover.sh -P 192.168.56.113 -S 192.168.56.114 -H 192.168.56.114 sync: rsync -av --stats ./ secondary:/root/princeton/failover