You can find the Ntopng Settings at Services → Ntopng.
Ntopng is a network traffic probe that monitors network usage.
Before you can use the Ntopng it has to be installed. You can install it at System → Addons.
On the page the Ntopng can be enabled or disabled.
Enable Login enables Username and Password.
Username is admin and cannot be changed.
Password for the ntopng GUI.
Interfaces can be specified and determine where the network traffic is collected. Data are only collected in Ntopng for enabled intefaces.
DNS Mode is the DNS address resolution mode and can be one of the following:
Decode DNS responses and resolve local numeric IPs only
Decode DNS responses and resolve all numeric IPs
Decode DNS responses and don’t resolve numeric IPs
Don’t decode DNS responses and don’t resolve numeric IPs
Clear historical data will remove all recorded data so far.
Dump Flows save flows to a backend system. The avaliable options are MySQL, ElasticSearch, Logstash