haproxy 4层负载

listen  nginx_80 0.0.0.0:80          
mode tcp            
option tcpka            
option srvtcpka
option clitcpka         
balance roundrobin          
server tcp-node1 192.168.32.79:80 check inter 1000 rise 1 fall 2
server tcp-node2 192.168.32.87:80 check inter 1000 rise 1 fall 2