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Technologies and Trends

Secure ZMQ Flow Collection Now Enabled by Default
Starting September 1st, 2026 (ntopng 6.7.280831 and later), cleartext flow data over ZMQ is no longer accepted by default. CURVE encryption is now enabled by default on ZMQ collection interfaces in ntopng. The same change applies to nProbe and Cento, which now also send ZMQ data encrypted by default. If no dedicated encryption key has been configured, ntopng falls back to a public built-in key pair. This provides protection against accidental cleartext exposure and ensures that encryption is enabled out of the box. However, users are strongly encouraged to configure dedicated keys as soon as possible, especially in production …
nDPI

Introducing nDPI 6.0: Licensing Update, Slow DoS Detection and Smarter Fingerprints
We are proud to announce the release of nDPI 6.0, the latest major update to our open-source Deep Packet Inspection (DPI) toolkit. This release brings an important licensing update, a brand-new detection logic for Slow DoS attacks, more flexible and reliable traffic fingerprints, and zero-overhead runtime observability via USDT tracepoints — on top of new protocols and dozens of improvements and fixes. Updated Licensing Terms With nDPI 6.0 we have updated the licensing terms of the project, introducing a distinction between for-profit and not-for-profit usage of some components. Full details …
Technologies and Trends

Introducing PF_RING 9.4: Expanding Capabilities Across Capture, Flow Processing and Hardware Support
We are pleased to announce the release of PF_RING 9.4, bringing new capabilities for packet capture and flow processing, along with important improvements across the PF_RING kernel module, capture drivers, flow tracking, and system integration. Multi-Timeline Extraction with nPCAP PF_RING 9.4 adds support for multi-timeline extraction from n2disk dump sets, with timestamp-based data aggregation through nPCAP. This makes it possible to work more efficiently with traffic distributed across multiple timelines (e.g. load-balanced to multiple streams or interfaces), allowing traffic to be correlated and reconstructed based on timestamps, even when dumped to different …
nDPI

Announcing nDPI Dual License Change
A License Change for nDPI: Protecting the Project We Started in 2012 When we began nDPI back in 2012, the idea was simple: build an open source, high-performance Deep Packet Inspection engine that anyone could use as a foundation layer for network applications. No gatekeeping or strings attached, but just a solid piece of infrastructure that the community could build on, improve, and share back. In order to protect this idea, we have registered the nDPI trademark both in the US and EU to prevent people from using the word …
nProbe

HowTo Collect Flows: the Case of Palo Alto and Fortinet
Network devices export flow data in many flavors. Some vendors stick closely to the NetFlow/IPFIX standard, so collecting their flows is essentially plug-and-play. Others extend the standard with proprietary Information Elements (IEs) to expose vendor-specific details (e.g. application names, user identities, security verdicts, etc) which requires a bit of extra configuration on the collector side. In this post we revisit and update an older article on collecting proprietary flows with nProbe, using two widely deployed firewall vendors as concrete examples: Fortinet FortiGate and Palo Alto Networks. Two Different Approaches, One Collector FortiGate exports flow data …
Technologies and Trends

Saying Goodbye to Hierarchical Clusters in ntopng
The hierarchical cluster architecture was originally introduced to allow multiple ntopng instances to be organized in a parent/child topology. Child instances collected and analyzed local traffic, while parent instances aggregated information from multiple children to provide a centralized view of the network. At the time, this approach addressed a common requirement: monitoring geographically distributed sites while maintaining a central point of visibility. However, networking environments and the ntop ecosystem have both evolved considerably since then. Building a distributed deployment with nProbe and ntopng Today, the same use cases can be …
ntopng

Supercharging ntopng: Engineering a Fast, Modern Network GUI
If you’ve opened ntopng recently, you may have noticed something feels a little different — a little faster. That’s not your imagination. We’ve rebuilt the main menu, footer and top header, interfaces selector and the preferences pages using Vue.js, the first step in a broader effort to modernize ntopng’s entire interface. What Changed The menu and preferences sections have historically been built on server-rendered HTML — reliable, but not built for speed. Every click meant a round trip to the server and a full page reload, even for something as …
ntopng

Who Is Eating My Bandwidth ?
Every network administrator has, at some point, asked the same question: who is eating my bandwidth? On a typical corporate LAN connected via flat-rate fiber, the answer is mostly a curiosity — useful for capacity planning, less so for the monthly bill. But the moment your network relies on a metered link — a 4G/5G mobile uplink, a VSAT satellite backhaul, an MPLS circuit billed by volume, or a roaming SIM in an IoT fleet — the same question becomes a cost-control problem, and getting the wrong answer can be …
AI

Discussing of LLM and Intelligent Monitoring at GRNOG 20
Earlier this week ntop attended the GRNOG 20, the annual meeting of Greek Network Operators. This has been a great place to discuss about network visibility in large networks, understand what are the problems network operators face with, and see what ntop can do in terms of visibility. ntop has been traditionally a company based on opens open source, and this has been the location where we have demonstrated how ntopng has been enhanced with BGP (Border Gateway Protocol), ASN and infrastructure visibility. One of the main topics of the …
Cybersecurity

Introducing ntop SBOM (Software BOM)
A Software Bill of Materials (SBOM) is a formal, machine-readable inventory that lists every component, library, and dependency included within a software application. Think of it as a digital “ingredient label” that tells you exactly what went into building the software, which versions are running, and where each piece originated. Typically, it documents: SBOMs are increasingly becoming a legal requirement. For instance, governments and strict regulatory frameworks (e.g. the U.S. Executive Order on Improving the Nation’s Cybersecurity and the EU Cyber Resilience Act) mandate that software vendors provide SBOMs to …
AI

Interop Tokyo 2026: Showcasing the Future of Network Visibility and AI
We just returned from an incredible week in Japan! Interop Tokyo 2026 is the region’s premier computing and networking event. This year’s experience exceeded all our expectations. Connecting with our vibrant community always fuels our passion. It helps us shape the future of network traffic analysis. Here is a look at what went down and what is coming next. A Sold-Out Seminar with Jupiter Technology We owe a massive thank you to our trusted partner, Jupiter Technology. Thanks to their support, we hosted a specialized seminar during the event. The …
AI

Previewing nAnalyst, the layer that finally explains your network
Today we have previewed out first AI-based tool named nAnalyst during out webinar taht we have run with support of the Alibaba Qwen team. This tool is designed to (finally) explain what happens in your network, and we’ll introduce it in September with bet starting on June 22nd. For those who missed the webinar can see the recording of the event. Below you can also find the presentation slides we have used today: Shall you be interested in providing us a feedback and willing to test nAnalyst beta, please fill …

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