gistfile1.txt

defaults
    log     global
    mode    http
    option  httplog
    option  dontlognull
    timeout connect 5000
    timeout client  50000
    timeout server  50000

frontend localnodes
    bind *:7776
    mode http
    default_backend nodes

backend nodes
    mode http
    balance roundrobin
    option forwardfor
    option httpchk GET / HTTP/1.1\r\nHost:localhost
    server web01 localhost:7777 check
    server web02 localhost:7778 check
    server web03 localhost:7779 check
    server web04 localhost:7780 check