We’re excited to announce the release of nDPI 4.14, a maintenance release that also includes some cool new protocol dissectors and fixes. As you know, maintaining a DPI library is no easy task, and this release is no exception. We’ve worked hard to enhance existing dissectors, making them more robust and efficient. We’ve also cleaned […]
Using Network Fingerprints Beyond Cybersecurity
Last week ntop has been invited to give a talk at neacademy in Napoli, Italy. The topic was network fingerprints and nDPI. Network fingerprints such as JA4 have been made popular by cybersecurity that uses them to spot (with limited false positives) malware and use them to find traffic pattern similarities. During the talk, we […]
When Traffic Obfuscation Falls Short: nDPI vs NordWhisper NordVPN
In recent years, numerous virtual private networks (VPNs) have been introduced to the market. Some of these VPNs are standalone applications, while others are integrated into web browsers or other network applications. All of these VPNs promise users a private browsing experience by preventing users from being tracked and observed, particularly on public hotspots. Popular […]
Released nDPI 4.12: Obfuscated/Encrypted/Proxied Traffic and Fingerprints
This is to announce the release of nDPI 4.12, the first version after our 6 months release cycle announced earlier this year. The main changes of this release include support for encrypted/obfuscated/proxied in particular for OpenVPN and TLS, as well support for network fingerprints presented in November at the Sharkfest conference. For all details see […]
A Deep Dive Into Traffic Fingerprints
Last week during SharkFest Europe 2024 we have presented what are network fingerprints and how they work. During the talk we (Luca and Ivan) have described how we have extended nDPI with support of network fingerprints, and how this work has been also integrated in Wireshark. We believe that fingerprints are an interesting technology that […]
How First Packet Classification (FPC) Works in nDPI
Starting with nDPI 4.10, we have introduced a new feature called First Packet Classification (FPC). Goal of this technique is to address one problem of DPI that detects a protocol only when traffic has been dissected. This means that for TLS you need a few packets (usually between 5 and 10) for protocol dissection, as […]
Released nDPI 4.10: 421 Protocols, 55 Flow Risks, Several Improvements, Getting Ready for FPC
This is to announce the release of nDPI 4.10. This release adds many improvements and new detected protocols. For this reason future releases will be scheduled more often on a 4 or 6 months (hard) basis in order to provide you constant updates on a predictable timeframe, Beside adding many dissectors, this release paves the […]
Positioning ntopng vs nProbe for Traffic Analysis
Recently we have compared the use of nDPI in a realtime application (ntopng) and a near-realtime (nProbe). We have captured a short pcap with some mixed traffic and analysed it with both applications. The expectation was to find comparable results between the two applications, but this happened only partially. This blog posts explains the main […]
Advancements in Traffic Processing Using Programmable Hardware Flow Offload
This week we have presented at the IEEE HPSR (IEEE International Conference on High Performance Switching and Routing) our latest work that shows how nProbe can benefit of acceleration provided by modern SmartNICs to achieving multi-100 Gbit traffic processing (both passive and inline) on low-end servers while deep-packet inspecting traffic using nDPI. If you want […]
nDPI: Internals and Frequent Questions
All ntop tools are based on nDPI but not every use is familiar with nDPI internals. We often receive questions about it, and it’s time to answer frequent questions. Q: How nDPI implements protocol detection? A: nDPI includes a list of protocol dissectors (356 as of today) that are able to dissect protocols such as […]