ntop products have been using geolocation databases provided by MaxMind for a long time, to augment network IP addresses with geographical coordinates (cities, countries) and information on the Autonomous Systems. ntop have been freely packaging and redistributing such databases in … Continue reading
Introducing n2disk 3.4: 100 Gbit Traffic Dump to Disk
This is to announce a new n2disk release 3.4. In addition to major performance optimisations with FPGA-based NICs, this release adds new interesting features including the ability to filter traffic based on the application protocol, aggregate traffic from multiple (2+) ZC … Continue reading
Introducing Automatic Package Update in ntopng
One of the most useful features in applications, is the ability to Update the application with a matter of click with no need to move to the terminal console. Instruct the system to update the application as a new version … Continue reading
Rethinking Network Flow Visualisation
Traffic monitoring applications often aggregate traffic in flows, that in essence is a way to divide traffic according to a 5-tuple key (Protocol, IP/port source/destination). Flows are then aggregated for instance according to IP address or protocol, and often represented … Continue reading
How to use nDPI from CLI to analyse network traffic
Most people use nDPI indirectly being it part of ntopng and many other non-ntop developed tools. However not many people know that nDPI can also be used from the command line to analyse network traffic. This is useful to create … Continue reading
Exploring Physical Network Topologies Using ntopng
ntop tools are known for monitoring network traffic. However this traffic has to flow on physical networks and thus it is important to understand the physical network layout. LLDP (Link Layer Discovery Protocol) is a network protocol used to dynamically … Continue reading
Spotting Plaintext Information in Network Protocols
In short: encryption does not always mean that all the information exchanged is really encrypted. Another myth is that many people believe that the equation “encryption = security” holds. Unfortunately this is not true. This slide deck we presented at Sharkfest … Continue reading
Packet-less traffic analysis using Wireshark and libebpfflow
If you wonder how you can use Wireshark with containers, you now have a solution. This week we have presented at Sharkfest EU 2019 how we have integrated libebpfflow, our home-grown eBPF-based library for system introspection, with Wireshark. Thanks to … Continue reading
ntopng & Suricata: Unifying Visibility with Security
This week we have presented at Suricon 2019 our work about unifying ntopng with Suricata. In short: Suricata is a great tool for analysing individual flows but It lacks a GUI It is blind to security threats when they use … Continue reading
New Directions in Network Traffic Security: Homework for 2020
Summary With today’s traffic, most network IDSs (NIDS) have severe limitations in terms of visibility and ability to be easily circumvented by malware (for instance running a known service on a non-default port or the other way round), and thus … Continue reading