ntop

ntop in 2011
Most of you know only small pieces of the ntop project. I have decided to prepare a few slides that you can use as tutorial for showing how the various project components can be used to efficiently monitor networks, and what you can expect in 2011 from this project (see for instance vPF_RING and n2disk). Happy new year. …
nProbe

How to Configure nProbe to Export URLs and Latency via NetFlow
Our friends at Plixer have written a nice article about how to use nProbe to export HTTP and latency information. Note that you can also use the nProbe http plugin to trace HTTP events and rebuild user sessions. This as netflow is not exactly the best protocol to use for exporting this information. The available options are: --http-dump-dir <dump dir> …
ntop

Monitoring Traffic Using ntop: Cisco Traffic Analyzer
Most network administrators use ntop for monitoring ethernet traffic. ntop can do much more than this and also monitor  Fibre Channel and SCSI traffic. Cisco Traffic Analyzer is a software product based on ntop whose goal is to give Cisco MDS 9000 users a view of the network traffic. Did you know that ntop can also do this? …
PF_RING

Using PF_RING with Snort and Suricata for IDS/IPS Acceleration
Some users are exploiting PF_RING acceleration to improve popular IDS/IPS applications such as Snort and Suricata. Suricata leveraged PF_RING since day one thanks to Will Metcalf, whereas I have added (again together with Will) support in snort using the DAQ library part of the 2.9 version. Acceleration does not mean just improved packet capture, but also the ability to fully exploit multicore architectures by spreading packets across multiple application instances. This is a unique feature that can’t be found in pcap-based libraries. This is an excerpt from the snort-users mailing …
PF_RING

Meet ntop at RIPE 61 Rome (15-19 November)
Those who are interested in hearing about high-speed packet capture and filtering and to monitoring in general, can show up at the next RIPE 61 meeting that till take place in Rome (15-19 November). I will be speaking about hardware packet filtering using commodity adapters and how this work can be used in real life, ranging from ntop/nProbe to snort and network troubleshooting. …
PF_RING

Improving snort performance using PF_RING and multi-queue adapters
As of PF_RING 4.5.x, the user-space tools part of PF_RING have been enhanced with native snort support. As of version 2.9, snort sits on top of a library called DAQ (Data Acquisition library) that creates a transparent layer between snort and the packet capture modules. PF_RING is now a first class citizen in DAQ, as in PF_RING/userland/snort you can find the PF_RING DAQ module. This modules not only allows snort to take advantage of PF_RING acceleration, but it allows to offload to PF_RING some of its processing tasks. For instance …
ntop

A safe network for a relaxed life
My friends at Würth-Phoenix (I have to thank them for spreading the word about it) have prepared this presentation. It has not been conceived for professionals, but rather for those wishing to have a clue what’s ntop about. …
nProbe

Using ntop as a flow collector for nProbe
nProbe is an efficient netflow/IPFIX probe that can also act as a collector dumpling flows on disk or onto a database (MySQL, sqlite and Fastbit). As ntop has not been designed to operate on large/fast networks, it’s possible to use nProbe as pre-processor. In this configuration, nProbe captures packets from a network interface (or collects flows on a socket), computes flows based on packets, and sends them to ntop. Thus ntop acts as a flow collector. Supposing to: receive packets to account/analyze on interface eth1 of host X start ntop …
Announce

Monitoring and Solving Network Management Challenges
One of the unique nProbe features is its architecture that’s open to extensions. Plixer International is exploiting these nProbe features in their products. If interested you should attend this presentation. 2010 ACUTA Fall Seminar 10/24/2010 – 10/27/2010 Sheraton Premier at Tysons Corner Vienna, VA Presenter: Michael Patterson President/CEO Plixer International 1 Eagle Drive Sanford, ME 04073 Bio sketch: Michael Patterson leverages his 16+ years of experience in network management to oversee the direction of the company’s network management solutions. Under Mike’s direction, Plixer has worked with more than 100 universities …
nProbe

Introducing nProbe v6
Today the new nProbe v6 has been released. It includes several improvements with respect to the previous version including: Full IPFIX support: PEN (Private Enterprise Numbers) and Variable length encoding. Ability to natively dump flows in FastBit format that allows to outperform relational and raw flow-based collectors. Ability to collect sFlow flows and turn them into flows (v5/v9/IPFIX). Collection of Cisco ASA flows and conversion in ‘standard’ flows. New nprobe architecture for better performance and exploitation of multicore architectures. Support of tunneled (including GRE, PPP and GTP) traffic and ability to export in flows inner/outer envelope/packet information. …
nProbe

nProbe Internals
nProbe is an efficient processing engine able to produce flows based on captured packets, converts flow format (e.g. from NetFlow v5 to v9), or from sFlow to NetFlow. Its engine is fully extensible by means of plugins, and it can handle many application-level protocols. This short document gives an overview of the nProbe internals and it describes the nProbe plugins structure. …

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