3/19/2023 0 Comments Ntopng setting up for first tiem![]() Sudo systemctl status ntopng -no-pager -l ![]() To check whether it is running without any error use command: Next, start and enable the service of Ntopng so that it can get started automatically with the system startup. We just need to use the APT package manager and the installation command, here is that. It is already available through the default system repository of this Linux. We don’t need to add any additional repository to install the NTopng on Ubuntu 22.04 LTS. Universe repository is one of Ubuntu’s standard repo that offers the software packages maintained by its community opposite to the ‘main’ repository maintained by Ubuntu’s parent company Canonical. sudo apt update & sudo apt upgrade sudo apt install software-properties-common Update the systemįirst of all update your system to get the latest available updates, along with that also install the few standard required packages. The steps given here can be used on both Ubuntu 22.04 Desktop or Server systems, however, make sure you have a user with sudo access. Uninstall or remove ntopng Steps to install Ntopng on Ubuntu 22.04 LTS Pay attention to the fact that I have configured the nprobe’s virtual interface to work through the Wireless NIC of the Raspberry Pi.8. The following example shows the nprobe and ntopng configuration on a Raspeberri Pi, and a Cisco ASA as the NetFlow Exporter. Please keep in mind that there are plenty of ways of how to configure it depending on the individual network requirements and resources. Details of how to set up this configured are shown below. It receives NetFlow traffic reported by NetFlow Exporters, then ntopng displays it in a readable and useful fashion. Nprobe is a software collector that works over ntopng. Because the collector receives and decodes packets, NetFlow can go beyond of the local area network scope. A NetFlow Exporter reports the traffic that traverses it to a central unit called “NetFlow Collector”. Any network device (router, switch, firewall, AP…) that includes NetFlow reporting capabilities can be configured as a “NetFlow Exporter”. Unlike the previous example, nprobe over ntopng requires configuration of the involved network devices. Nprobe over ntopng (as a dedicated NetFlow collector) The screenshots shown below illustrates the ntopng server configuration along with a couple of network topologies where this configuration fits well. Two NIC for bridging, and one NIC for management. To do this, the ntopng box requires at least three NICs. A big advantage of this setup is the fact that it does not require any change in the configuration of the involved Ethernet endpoints. It is useful when placing the monitor between two Ethernet endpoints. The following walk-through is intended to be a technical reference on how to deploy ntopng and nprobe on a network. However, there are on the Internet many useful documents published by independent network administrators such as Johannes Weber who has some useful links (shown next) about the installation and configuration of it: The ntopng official web site is the authorized channel for accessing technical resources required for understanding how this tool works. Due to security and performance issues, network monitoring is getting more and more importance nowadays and ntopng is one of the most powerful tools for accomplishing this task.
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