![]() Receive notifications of new posts by email. It should be used only for statistics but not for real-time troubleshooting.Ĭontinue reading Using NetFlow with nProbe for ntopng → ntopng is the core of the open-source network traffic monitoring solution from the company ntop. However, it turned out that the “real-time” functionalities of NetFlow are limited since it only refreshes flows every few seconds/bytes, but does not give a real-time look at the network. ntopng is the powerful and resource-efficient software for monitoring and analysing network traffic in real time as well as data from the past so that it can provide the answers to the questions posed above. This single flow collector can receive flows from different subnets and routers/firewalls and even VPN tunnel interfaces, etc. NetFlow on the other hand can be used to send traffic statistics from different locations to a NetFlow flow collector, in this case to the tool nProbe. This article assumes that you have at least a basic understanding of Linux, you know how to use the shell, and most importantly, you host your site on your own VPS. This has the major disadvantage that it only gets packets from directly connected layer 2 networks and vlans. Ntopng is an essential tool for network administrators who want to monitor their network traffic and troubleshoot network problems. My current ntopng installation uses a dedicated monitoring ethernet port (mirror port) in order to “see” everything that happens in that net. I am sending the NetFlow packets from a Palo Alto Networks firewall. It refers to my blog post about installing ntopng on a Linux machine. This blog post is about using NetFlow for sending network traffic statistics to an nProbe collector which forwards the flows to the network analyzer ntopng. ![]()
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