# Pastebin 0167bHKh
backend mqtt
        mode tcp
        balance roundrobin
        maxconn 2000000
        server app1 127.0.0.1:1883 source 192.168.8.1
        server app2 127.0.0.1:1883 source 192.168.8.2
        server app3 127.0.0.1:1883 source 192.168.8.3
        server app4 127.0.0.1:1884 source 192.168.8.4
        server app5 127.0.0.1:1884 source 192.168.8.5
        server app6 127.0.0.1:1884 source 192.168.8.6