haroxy

apt-get install haproxy

yum install haproxy

/etc/haproxy/haproxy.cfg

TCP reversed proxy / load balancer

frontend  main *:2222
    mode tcp
    default_backend             app

backend app
    balance     roundrobin
    mode tcp
    server  app1 192.168.1.100:22 check
    server  app2 192.168.1.101:22 check