In today’s article we shall perform the installation and configuration of ntopng on Debian 12 Linux system. The ntopng tool is useful in network traffic probing and it provides a 360° Network visibility. It can get traffic information from various sources such as firewall logs, traffic monitors in the network, from NetFlow exporters, Intrusion Detection systems, or SNMP devices. It comes with an encrypted and intuitive web user interface for management and analytics.

Add ntopng APT repository

Update the APT package index and install key prereqs.

apt update && apt install software-properties-common wget

Next we add the repository to the system by executing the following commands.

source /etc/os-release
wget https://packages.ntop.org/apt/$VERSION_CODENAME/all/apt-ntop.deb
apt install ./apt-ntop.deb

Install ntopng on Debian

With the repository added, let’s install ntopng package.

apt update && apt install ntopng

Check the service status to confirm it’s running.

systemctl status ntopng.service

Check the ports used by ntopng.

ss -tunelp | grep ntop

Access ntopng web dashboard

Open your browser and enter http://ServerIP:3000/

Use the default logins

• Username: admin
• Password: admin

You are requested to change the admin password. Set a strong password for the user.

Finally, you land on the ntopng web dashboard.

ntopng CLI usage

When the systemd service of ntopng is not active, you can use the CLI method.

List your network interfaces:

ip link show

To monitor a physical NIC card, specify its interface name when running ntopng.

ntopng -i eth0

Conclusion

Congratulations! Now you have successfully installed ntopng on Debian 12 and start using it

Hopefully, this article will be helpful for you. Good luck!