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
How to Spot Unsafe Communications using nDPI Flow Risk Score
nDPI it is much more than a DPI library used to detect the application protocol. In the past year, nDPI has grown in terms of cybersecurity features used to detect threats and network issues leveraging on the concept of flow … Continue reading
On Network Visibility and Cybersecurity
Today we had the change to talk about network visibility and cybersecurity during an event organised by the Milan Internet Exchange MIX-IT. In this talk we have presented the current state of development in this area at ntop and provided … Continue reading
May 27th: Webinar on DPI-based traffic enforcement, ntop tools on pfSense/OPNsense
For a long time, ntop mainly focused on passive traffic analysis. As cybersecurity is becoming a main concern for many organisation and individuals, we have boosted our tools by introducing facilities for spotting threats and blocking unsafe traffic. This month … Continue reading
Introducing nProbe IPS: 10 Gbit nDPI-based Traffic Policer and Shaper
This is to introduce a new nProbe feature that brings IPS (Intrusion Prevention System) support via nDPI for Linux and FreeBSD (including OPNsense and pfSense). As shown in the picture below, nProbe acts as a transparent bridge (with kernel offload) … Continue reading
Combining nDPI and Wireshark for Cybersecurity Traffic Analysis
At the upcoming Sharkfest Europe 2021 we’ll talk about using Wireshark in cybersecurity. Part of the talk will focus on nDPI and Wireshark integration. Since the last release nDPI features flow risk analysis, that is basically a numerical indication of … 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
What is Score, and How It can Drive You Towards Network Issues
Telemetry protocols such as sFlow/NetFlow, SNMP or packet-based traffic analysis are the source of data for network traffic monitoring. For a long time visibility was the main issue and people were attracted by new tools such as Grafana that allowed … Continue reading
How To Monitor Traffic Behind a Firewall (During and Post Pandemic)
Due to pandemic, many people are now working in a delocalised world: some work from home, others from the office. To make things even more complicated, in the past remote workers used to connect to the company network via a … Continue reading