nDPI

Released nDPI 1.8
This is to announce the release of nDPI 1.8. In this version we have updated many protocol dissectors, simplified the API as well started to introduce changes that will be further improved in future versions. As usual we have changed many protocols dissectors. The whole changelog can be found below. Many thanks to all contributors! Changelog Recoded DNS and QUIC dissectors Code passed checks of static code analysers Added API wrappers (to be used in apps using nDPI) for substring-search ndpi_init_automa() ndpi_free_automa() ndpi_add_string_to_automa() ndpi_finalize_automa() ndpi_match_string() set_ndpi_malloc() set_ndpi_free() Added new ndpi_detection_giveup() …
News

Learn more about ntopng at RIPE72
This week we will attend the RIPE 72 meeting in Copenhagen, DK. Thanks to Martin Winter (co-founder of NetDEF) we will  speak about ntopng at two events on Thursday, May 26th: At 11AM we will introduce ntopng at the Open Source Working Group. At 3PM in room “Akvariet 2” we will run a two hours tutorial about ntopng and current/future ongoing developments we are carrying on. These events would be a good time for learning more about our tools, and for discussing extensions, future work items, issues you would like …
Guides

How to Analyse MikroTik Traffic Using ntopng
MikroTik routers are pretty popular in particular in the wireless community and many users of the original ntop are familiar with it. With the advent of ntopng, we have decided to avoid natively supporting netflow in ntopng due to the many “dialects” a of the protocol and leave to nProbe the task to do the conversion of flows onto something ntopng can understand. For this reason the workflow is the one depicted below: The first thing to do is to configure NetFlow (both v5 and v9 are used) on the MikroTik that cane …
PF_RING

Commoditizing 10/25/40/100 Gbit with PF_RING ZC on Intel FM10K
As you know we’re working at 100 Gbit for a while, not just in terms of network speed, but also in terms of redesigning existing applications for being more efficient and powerful (BTW stay tuned as very soon we will introduce nProbe Cento). With the introduction of the new Intel FM10K ethernet controller family, it is now possible to support 10/25/40/100 Gbit using one single NIC (just replace QSFP+ to change network speed) on a product that is in the 1k USD range for dual port. Another major feature of this product is the embedded programmable …
nProbe

Advanced Flow Collection with ntopng and nProbe
In flow-based monitoring there are two main components: the probe (a.k.a. flow exporter) and the flow collector/analyser. Usually NetFlow/sFlow is a push mode paradigm as network devices have almost no memory/storage and thus they send out data as soon as possible towards a collector. This architecture is suboptimal as the probe is pushing the same data to all collectors (i.e. collector X cannot tell the probe that it is interested only to HTTP-based flows, but it has to collect everything and discard un-needed information) and also because in case a new collector …
nProbe

How to Build a 100$/€ “Augmented” NetFlow/IPFIX Probe
One of main problems of flow-based devices is their high cost or poor monitoring capabilities (nothing beyond IPv4 packets and bytes). At ntop we believe that network visibility is much more than this, as people in 2016 want application performance, deep packet inspection, export to big data system and much more. We’re experimenting with low-cost hardware devices since a long time but we finding a powerful yet cheap device with  embedded port mirror capability isn’t that simple (or cheap). Finally we have found a solution for families and small business who want to …
Features

Exploring Historical Data Using ntopng: Part 2
ntopng is able to deliver monitored traffic flows data to a MySQL server. We have already discussed how to configure ntopng to deliver this data in another blog post. In this article we discuss the new features that allow you to dig deep into the flows dumped to MySQL using the ntopng web GUI. Earlier ntopng releases didn’t allow for thorough historical analyses and were only giving access to recorded flows and providing limited sorting features. With the advances made in the latest ntopng Pro Small Business it is possible to drill-down historical …
Guides

Monitoring BitTorrent Traffic with ntopng
ntopng has been designed not just for network administrators, but also for small companies and in particular for families. How often you have seen traffic on your network that you did not expect and you asked yourself what was that about. A good example is BitTorrent traffic that can be used for efficiently downloading files and not just for copyright-protected content (unfortunately this is how this protocol is usually perceived by the network community). If you are wondering what your colleagues/children are downloading using BitTorrent, now ntopng can help you. In the latest …
PF_RING

Best practices for using Bro IDS with PF_RING ZC. Reliably.
Zero copy technologies such as PF_RING ZC allow applications to read packets in memory without any actor involved, being it the kernel or a memory copy. This is the reason why using ZC you can easily fill up a 10 Gbit line using a single thread and a single network card queue. The drawback of zero copy is that applications must be well behaved as the same packet is shared across multiple applications and thus if one application pollutes the packet memory, this problem affects all the consumers. The same …
ntopng

Using nfsen-like Traffic Profiles in ntopng
One of the great features of nfsen is the ability to specify filters for identifying specific traffic and thus aggregate and graph it. In ntopng we aggregate traffic per host and networks. However sometimes you want to aggregate using other criteria. Examples include: Traffic from host A to host B VPN traffic sent from host X to concentrator Y Facebook traffic sent from iPad 192.168.13.4 ntopng web traffic In order to implement these measurements, in ntopng we have introduced the concept of network profiles. Each profile is defined using the “Traffic …
nProbe

Towards 100-Gbit Flow-Based Network Monitoring
Last week we have previewed at FlowCon 2016 conference our new 100 Gbit probe called nProbe cento (cento is 100 in Italian). You can find our presentation slides here. We believe that it is important to combine flow monitoring with security and packet to disk. This in an integrated manner, and not by using different un-correlated applications. Cento is the next generation probe able to generate flows at 100 Gbit line rate using an x86 PC and a 100 Gbit NIC on top of PF_RING ZC, while being able to …
Announce

Join us at the San Francisco Network Visibility Meetup on Jan 19th
After the Flocon 2016 meetup we held this week, next week we’re organising a meetup for our users of the bay area where we will discuss a new arguments including high-speed sensors and network analytics. http://www.meetup.com/San-Francisco-Network-Visibility-Meetup/ For those who have not attended the Flocon meetup (~25 people attended it, for a 30 min presentation followed by a 2h open discussion), the main comments have been: Network monitoring has to be integrated with security tools: people demand small machines able to visualise network traffic metrics as well report potential security violations. Inline …

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