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admin 0

Introducing Smart Recording in n2disk: Combining Cybersecurity with Packet-to-Disk

Posted May 2, 2023 · Add Comment

In short Continuous network traffic recorders are applications (or appliances) that write network traffic on disk. In case of issues (e.g. security breach or network outage) they enable network and security analysts to go back in time and see how … Continue reading →

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admin 0

Exploiting Arista MetaWatch with n2disk and ntopng: HighRes Timestamping and Analytics

Posted December 2, 2020 · Add Comment

Precise packet timestamping is a key feature for network traffic analysis and troubleshooting. Traditionally many people use FPGA-based NICs with precise timestamping (e.g. Napatech, Silicom) even though a good precision can be obtained with PTP-based NICs such as many Intel … Continue reading →

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admin 0

Howto Build a 100 Gbit (Drop-Free) Continuous Packet Recorder using n2disk [Part 3]

Posted June 15, 2020 · Add Comment

In the first post of this series (part 1) we described how to build a 2×10 Gbit continuous packet recorder using n2disk and PF_RING, in the second post (part 2) we described what hardware is required to scale from 10 Gbit to … Continue reading →

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admin 0

Introducing n2disk 3.4: 100 Gbit Traffic Dump to Disk

Posted January 7, 2020 · Add Comment

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 →

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admin 0

Combining Traffic Recording with Visibility at 100 Gbps

Posted August 16, 2019 · Add Comment

A few months ago, with ntopng 3.8, we introduced support for continuous traffic recording, that allows you to drill down historical data from the timeseries level up to raw packets. This is useful when troubleshooting a network issue or analysing a … Continue reading →

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admin 0

Building a (Cheap) Continuous Packet Recorder using n2disk and PF_RING [Part 2]

Posted July 11, 2019 · Add Comment

Continuous packet recorders are devices that capture raw traffic to disk, providing a window into network history, that allows you to go back in time when a network event occurs, and analyse traffic up to the packet level to find … Continue reading →

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Simone Mainardi 0

Drill Down Deeper: Using ntopng to Zoom In, Filter Out and Go Straight to the Packets

Posted December 24, 2018 · Add Comment

ntopng has grown significantly over the past years, providing an increasingly-interesting set of features to support network analysts and troubleshooters in their decisions. Among the most relevant features, it is worth mentioning that timeseries inspection pages have been redesigned and … Continue reading →

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admin 0

Introducing n2disk 2.8 with Microburst Detection

Posted April 25, 2017 · Add Comment

Together with PF_RING 6.6, today we also released n2disk 2.8. In this release we introduced support for microburst detection in order to spot traffic bursts, which is crucial in identifying potential capacity issues and troubleshooting packet loss in network equipments. We … Continue reading →

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admin 0

See You Next Week at the ntop Users Meeting

Posted October 13, 2016 · Add Comment

This is to renew the invitation to meet you next week at the ntop users meeting colocated with Sharkfest Europe. The event is free of charge but seats are limited. More information can be found here. Hope too see you … Continue reading →

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admin 0

Filtering Terabytes of pcaps using nBPF and Wireshark

Posted October 11, 2016 · Add Comment

In a previous post we introduced our new nBPF library that able to convert a BPF filter to hardware rules for offloading traffic filtering to the network card. We did not mention that the same engine can be used for accelerating traffic extraction from … Continue reading →

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