Re: Total bytes per IP for accounting on ntopng

Hi,

Currently ntopng does not export such daily information via an API. Feel 
free to open a feature request on github https://github.com/ntop/ntopng 
for an API request.

As an alternative, if you have MySQL support enabled (see -F option), 
you could perform manual MySQL aggregations from the database.

Another alternative is to read data from the RRD files which ntopng 
creates every 5 minute for local hosts (see -m option for defining local 
networks). In this case, you could read the statistics of the host 
192.168.1.1 with the command "rrdtool fetch 
/var/tmp/ntopng/0/rrd/192/168/1/1/bytes.rrd AVERAGE -s now-1d". The 
first column of the output contains the downloaded host traffic, while 
the second the uploaded traffic.

This approach has the following implications:

- data is actually an average of the host traffic in 5 minutes, not the 
actual traffic

- data is not aggregated, you will need to sum up the rows values to get 
the total

- you will need to multiply the row value by 300, since values are derivates

See https://oss.oetiker.ch/rrdtool/doc/rrdtool.en.html for more details.

Regards,
Emanuele


On 05/07/2017 01:21 PM, Umut Arus wrote:
> Hi,
>
> I'd like to collect of clients downloaded data per IP every day so 
> I'll integrate it for home made quota management per IP.
>
> How can I get the data of total bytes from an API or cli from ntopng?
>
> thanks.
>
> -- 
> *Umut Arus*
> *
> *
> Information Technology
> Sabancı University
>
>
>
>
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