Widget NtopNG

Use the NtopNG widget in custom views to view data about network usage collected by an NtopNG server.

The widget can display the following views (see Examples below):

• Top N Local address : Display the n local hosts that receive/emit the most traffic
• Top N Remote address : Display the n remote hosts that receive/emit the most traffic
• Top N Flows : Display the top n flows by network usage (local/remote hosts and ports)
• Top N Applications : Display the n applications that emit/receive the most traffic (group flows by application)

Install the widget

1. Install the following package on the central server:

   yum install centreon-widget-ntopng-listing

2. On page Administration > Extensions > Manager, install the NtopNG widget.

Configure the widget

To configure the widget, click on the wrench icon in its top right corner. A window opens:

NtopNG Probe

• Login: Account used to access NtopNG (we recommend not to use an admin account)
• Password: Password for this account
• Probe: IP address of your NtopNG server
• Protocol: Protocol to use to connect to NtopNG (https by default)
• Port: Network port to connect to NtopNG (TCP/3000 by default)
• Interface: ID of the interface. You can find it in the NtopNG interface, on page Interface:

View

• Mode: Select the data you want to display
• Top: Define how many lines should be displayed

Filters

Those filters only work for the Top N Flows view. You can filter on an IP address, on a port, or on both.

• IP Address: Display only the traffic related to a specific IP Address (do not use a hostname)
• Port: Display only the traffic on this particular port.

Misc

• Refresh interval (seconds): Define how often the data should be refreshed.

Examples

Top N Local address

Top N Remote address

Top N Flows

Widget without a filter:

Widget with a filter on an IP address:

Widget with a filter on a port and an IP address:

Top N Applications