Traffic monitoring requires packets to be received and processed in a coherent matter. Some people are lucky enough to get all interesting packet on a single interface, but this is unfortunately not a common scenario anymore: The use of network taps split one full-duplex interface into two half-duplex interfaces each receiving a direction of the […]
Learning the PF_RING API
Since the initial version, PF_RING has supported the pcap API that is familiar to many developers. This has allowed people to seamlessly port existing apps on top of PF_RING, simply relinking their apps using the PF_RING-aware version of libpcap. Unfortunately the pcap API is able to exploit just a subset of the features available in […]
Accelerating Suricata with PF_RING DNA
Below you can find an excerpt of the “Suricata (and the grand slam of) Open Source IDPS” article written by our friend Peter Manev (Suricata core team) describing how to install and configure PF_RING, DNA and Suricata. The original blog entries can be found at Part One – PF_RING and Part Two – DNA. ————- […]
Tracking and Troubleshooting Mobile Phone Users (IMSI) using the MicroCloud
The microcloud is one of the fields where s used extensively by mobile network operators. The reasons are manyfold: Data aggregation facilities offered in realtime by the microcloud. Realtime user-to-tunnel mapping. User traffic-to-user correlation. Unfortunately when a mobile network is populated by million of active users (IMSI), troubleshooting a problem can be a problem. Tools […]
PF_RING 5.6.0 Released
This is to announce the release of PF_RING 5.6.0. We recommend all users to install this release as we have fixed a couple of critical bugs. Changelog: PF_RING Kernel module Fixed bug that prevented the PF_RING cluster to work properly with specific traffic Documentation User’s guide translated to russian (courtesy of ridervka@yandex.ru) Libzero Fixed bug […]
PF_RING 5.5.3 Released
Today we have released a new maintenance version of PF_RING. We suggest all users to update if possible. PF_RING Kernel module – Support for injecting packets to the stack – Added ability to balance tunneled/fragmented packets with the cluster – Improved init.d script – Packet len fix with GSO enabled, caplen fix with multiple clusters […]
Who (Really) Needs Sub-microsecond Packet Timestamps?
Introduction For years network adapter manufacturer companies have educated their customers that network monitoring applications can’t live without hardware packet timestamps (i.e. the ability for the network adapter to report to the driver the time a given packet was sent or received). State of the art FPGA-based network adapters [1, 2, 3] have hardware timestamps […]
Learning The ntop World of Apps
The main criticism to ntop is the lack of documentation. This is because we have to maintain many projects, have little time, and also because we prefer coding to documentation. We decided to fill this gap and give a positive answer to your requests: We have created the nBox GUI to enable you to use […]
Introducing nBox 2.0 (aka how to use/configure ntop apps using a web GUI)
Years ago we decided to create the nBox appliance as turn-key solution for those that were not fans of the command line. Then we decided to rewrite the nBox GUI to make it simpler, more modern, and usable by all ntop users, to configure ntop, nProbe, n2disk, PF_RING and DNA. In essence we have […]
PF_RING 5.5.2 Released
Changelog Fix for corrupted VLAN tagged packets Userspace bpf support (when using dna) PF_RING-aware igb default moved to 4.0.17 Flow Control rx/tx automatically disabled by the driver Added DAQ drivers into RPM (http://packages.ntop.org) New pfring_open() flag PF_RING_DNA_FIXED_RSS_Q_0 to send all traffic to queue 0 and select other queues with hw filters (DNA cards with hw […]