traffic-flow how to use?

Hello ,
I want to start making some order in our company
we have a free WiFi service
now I have setup proxy to be able to deny users to enter websites (such as youtube )
and this is working just great
now I understadn I can use traffic-flow to be abel to see which websites my users use and then I will decide if I want to “deny” them too .

my condifuration is simple
the WiFi router is 10.0.0.111
my computer is 10.0.0.76
on my computer I have install ntopng
I have cretesd this rule

/ip traffic-flow target
add dst-address=10.0.0.76

but I don;t see nothing inside

anyone know how to make this works?
do I have the right free software?
I just want to show which website people use

Thanks ,

Did you set up ntopng to use nprobe as collector?

nprobe -G --zmq "tcp://*:5556" -i none -n none --collector-port 5900

and in ntopng config set nprobe collector:

...
-i=tcp://127.0.0.1:5556
...

I’m unsure of commands of top of my head but in Winbox you need to also set the port (5900 in my example) and version (5) for the target you designate.

can you explain to me from start?
I will tell you what I have done so far:
download and install ntopng
in the installation he install me also something called Redis

I’m using win7 x64
I have install also nprobe
buty I get this massage when I try to run it

StartServiceControlDispatcher failed!

also I don’t see this service running
do I need to install something else?
so can you guide me in easy and simple way ?

Thanks ,