ntopng can be used to visualize traffic data that has been generated or collected by nProbe. Using ntopng with nProbe is convenient in several scenarios, including: The visualization of NetFlow/sFlow data originated by routers, switches, and network devices in general. In this scenario, nProbe collects and parse NetFlow/sFlow traffic from the devices, and send the […]
Cloud, IoT, sFlow Traffic Monitoring Tutorials #SFUS18
Last week we have presented two tutorials at the Sharkfest US 2018 edition: sFlow: Theory and practice of a sampling technology [ slides ] Packet monitoring in the days of IoT and Cloud [ slides ] We believe these tutorials are interesting for all those who are using ntop (and non ntop tools) and are willing […]
Best Practices to Secure ntopng
After a fresh install, ntopng will run using a default, basic configuration. Such configuration is meant to provide an up-and-running ntopng but does not try to secure it. Therefore, the default configuration should only be used for testing purposes in non-production environments. Several things are required to secure ntopng and make it enterprise-proof. Those things […]
ntopng Grafana Integration: The Beauty of Data Visualizazion
Disclaimer This article is outdated: please see this document for using ntopng with grafana Summary Grafana is one of the most widely known platforms for metrics monitoring (and alerting); ntopng version 3.1 natively integrates with Grafana thanks to a datasource plugin which is freely available; This article explains how to install and configure the ntopng datasource […]
When Live is not Enough: Connecting ntopng and nProbe via MySQL for Historical Flows Exploration
Using nProbe in combination with ntopng is a common practice. The benefits of this combination are manyfold and include: A complete decoupling of monitoring activities (taking place on the nProbe) from visualization tasks (taking place on ntopng); The capability of building distributed deployments where multiple (remote) nProbe instances send monitored data towards one or more […]
Filling the Pipe: Exporting ntopng Flows to Logstash
Logstash comes in very handy when it is necessary to manipulate or augment data before the actual consolidation. Typical examples of augmentation include IP address to customer ID mappings and geolocation, just to name a few. ntopng natively supports network flows export to Logstash. The following video tutorial demonstrates this feature.
Stream That Flow: How to Publish nProbe/Cento Flows in a Kafka Cluster
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 […]
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 […]
Ntopng Integration with Nagios
Discontinuation Notice This post becomes obsolete effective with ntopng 4.1+. Full discontinuation notice available here. This tutorial shows how to properly configure nagios and ntopng (Professional) in order to send asynchronous ntopng-generated alerts to nagios. Prerequisites It is assumed that the following software is already installed and properly configured: nagios daemon nagios NSCA (Nagios Service Check Acceptor) […]