In the first part of this series of articles, we focused on monitoring ISPs and MSP traffic. Today we analyse network traffic in SMEs and home networks. The typical network layout of a home or a small business is depicted … Continue reading
HowTo Monitor Customer Traffic in Managed Service Providers and ISPs
ISPs have provided Internet access to customers for years and the only goal was to connect their users to the Internet. Managed Service Providers (MSP) and Managed Security Service Providers (MSSP) deliver network, services and infrastructure on customer premises and … Continue reading
ntopng 5.0 Is Out: Modern Traffic Monitoring for AIOps and Cybersecurity
ntopng was initially designed as a tool for realtime network traffic monitoring. The idea was to create a DPI-based tool able to report traffic statistics. Overtime we have added the ability to implement active monitoring checks, SNMP, and various other … Continue reading
Infrastructure Monitoring: Observing The Health and Status of Multiple ntopng Instances
Introduction Quis custodiet ipsos custodes? (Juvenal). In other words: who will guard the guards themselves? If you use ntopng to monitor your network, you also need to make sure ntopng is monitored as in case of failure, ntopng will not … Continue reading
Collecting Flows from Hundred of Routers Using Observation Points
Collecting flows on large networks with hundred of routers can be challenging. Beside the number of flows to be collected, another key point is to be able to visualize the informations in a simple yet effective way. ntopng allows you … Continue reading
NetFlow/IPFIX At Scale: Comparing nProbe/ClickHouse vs nProbe/ntopng
In our previous post we have analysed the performance of the pipeline nProbe+ntopng for those who need to collect flows and analyse them, trigger alerts, create timeseries, provide a realtime monitoring console, dump them to nIndex and inform remote recipients … Continue reading
NetFlow Collection Performance Using ntopng and nProbe
Introduction ntopng, in combination with nProbe, can be used to collect NetFlow. Their use for NetFlow collection is described in detail here. In this post we measure the performance of nProbe and ntopng when used together to collect, analyze, and … Continue reading
How Attackers and Victims Detection works in ntopng
In recent ntopng versions, alerts have been significantly enriched with metadata useful to understand network and security issues. In this post, we focus on the “Attacker” and “Victim” metadata, used to enrich flow alerts and label hosts. Specifically, the client … Continue reading
Detecting and Analysing Qakbot Traffic Using ntopng
In this post Martin shows how he has used ntopng to detect Qakbot trojan. Many thanks for this contribution. Introduction I am using ntopng for network monitoring quite some time now and I was curios to see, what ntopng would … Continue reading
Best Practices for High Speed Flow Collection
Most people use nProbe and ntopng to collect flows using an architecture similar to the one below where nprobe and ntopng are started as follows: nprobe -3 <collector port> -i none -n none —zmq “tcp://*:1234” –zmq-encryption-key <pub key> ntopng -i … Continue reading