NetFlow Collection Performance Using ntopng and nProbe

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Introduction ntopng, in combination with nProbe, can be used to collect NetFlow. Their use for NetFlow collection is described in detail here. In this post we measure the performance of nProbe and ntopng when used together to collect, analyze, and dump NetFlow data. The idea is to provide performance figures useful to understand the maximum […]

nProbe IPS: How To setup an Inline Layer-7 Traffic Policer in 5 Minutes

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Introduction Recently, we have added Intrusion Prevention System (IPS) capabilities to our nProbe. Those capabilities are available starting from the latest 9.5 version, both for Linux and FreeBSD – including OPNsense and pfSense, and are available with all nProbe versions and licenses (see the product page for additional details). On Linux, nProbe leverages the netfilter […]

Measuring nProbe ElasticSearch Flow Export Performance

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nProbe (via its export plugin) supports ElasticSearch flows export. Setting up nProbe for the ElasticSearch export is a breeze, it just boils down to specifying option –elastic. For example, to export NetFlow flows collected on port 2058 (–collector-port 2058)  to an ElasticSearch cluster running on localhost port 9200, one can use the following nprobe -i […]

Stream That Flow: How to Publish nProbe/Cento Flows in a Kafka Cluster

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Apache Kafka can be used across an organization to collect data from multiple sources and make them available in standard format to multiple consumers, including Hadoop, Apache HBase, and Apache Solr. nProbe — and it’s ultra-high-speed sibling nProbe cento — integration with the Kafka messaging system makes them good candidates source of network data. The delivery of network data to a […]