Best Network Traffic Analysis (NTA) Software for Linux

ManageEngine Site24x7 is a comprehensive observability and monitoring solution designed to help organizations effectively manage their IT environments. It offers monitoring for back-end IT infrastructure deployed on-premises, in the cloud, in containers, and on virtual machines. It ensures a superior digital experience for end users by tracking application performance and providing synthetic and real user insights. It also analyzes network performance, traffic flow, and configuration changes, troubleshoots application and server performance issues through log analysis, offers custom plugins for the entire tech stack, and evaluates real user usage. Whether you're an MSP or a business aiming to elevate performance, Site24x7 provides enhanced visibility, optimization of hybrid workloads, and proactive monitoring to preemptively identify workflow issues using AI-powered insights. Monitoring the end-user experience is done from more than 130 locations worldwide.

ManageEngine OpManager is a powerful network traffic analysis solution that provides deep insights into network usage and performance. It monitors traffic patterns, bandwidth consumption, and application performance across the network, enabling IT teams to identify bottlenecks, troubleshoot issues, and optimize resource allocation. With features such as real-time monitoring, detailed reporting, and customizable dashboards, OpManager helps organizations gain visibility into network traffic, understand user behavior, and make informed decisions to enhance overall network efficiency and performance.

NetFlow Analyzer is a comprehensive traffic analysis tool that leverages flow technologies to provide real-time visibility into network bandwidth performance. NetFlow Analyzer is primarily a bandwidth monitoring tool, which has optimized thousands of networks globally, offering a holistic view of your network bandwidth and traffic patterns. NetFlow Analyzer is a unified solution that collects, analyzes, and reports on your network's bandwidth usage, and by whom. NetFlow Analyzer is your partner in optimizing bandwidth usage across a million interfaces globally, as well as providing network forensics and network traffic analysis. Reconfigure policies with traffic shaping via ACLs or class-based policies to gain control of the applications that use the most bandwidth. NetFlow Analyzer leverages Cisco NBAR technology to give you deep visibility into Layer 7 traffic and recognize applications that use dynamic port numbers or hide behind known ports.

Datadog is the monitoring, security and analytics platform for developers, IT operations teams, security engineers and business users in the cloud age. Our SaaS platform integrates and automates infrastructure monitoring, application performance monitoring and log management to provide unified, real-time observability of our customers' entire technology stack. Datadog is used by organizations of all sizes and across a wide range of industries to enable digital transformation and cloud migration, drive collaboration among development, operations, security and business teams, accelerate time to market for applications, reduce time to problem resolution, secure applications and infrastructure, understand user behavior and track key business metrics.

Noction Flow Analyzer (NFA) is a network analytics, monitoring, and alerting tool capable of ingesting NetFlow, IPFIX, sFlow, NetStream, and BGP data. The NetFlow analyzer enables engineers to optimize their networks and applications performance, control bandwidth utilization, do the proper network capacity planning, perform detailed BGP peering analysis, improve security, and minimize network incidents response time.

Malcolm is an open source security monitoring platform designed to help security professionals collect, process, and analyze network data for threat detection and incident response. It integrates multiple powerful tools to gather and visualize network traffic, log data, and security alerts. Malcolm’s user-friendly interface allows security analysts to easily investigate potential threats by providing detailed insights into network activity. It is designed for scalability, offering flexible deployment options across various environments, from small businesses to large enterprises. Malcolm’s modular design ensures users can customize the platform to suit their specific security requirements, while its integration with other observability tools ensures comprehensive monitoring. While Malcolm is great for general-purpose network traffic analysis, its creators see a particular need in the community for tools providing insight into protocols used in industrial control systems (ICS).

NetFlow Analyzer is an easy solution for net admins to better understand bandwidth consumption, traffic trends, applications, hosts and traffic anomalies, by visualising the traffic by network devices, interfaces and subnets, traffic segments and end users. NetFlow Analyzer utilizes Cisco® NetFlow, IPFIX, NSEL, sFlow and compatible netflow-like protocols to help net admins with bandwidth monitoring, network traffic investigation, analyses and reporting. This way, companies can optimise networks and applications, plan network expansion, minimize time spent on troubleshooting and diagnostics, and improve security. NetVizura allows you to define custom traffic to be monitored based on IP subnets and traffic characteristics like protocol and service used. Monitor specific traffic for each organisational unit in your network such as departments, remote sites and collections of regional offices by identifying them with IP subnets.

Traditional security controls are insufficient to protect from cyberattacks in the digital age, compelling organizations to adopt a Zero Trust Network. The principles are simple – trust no user or device, inside or outside the private network and grant as little access as possible upon reliable identification. Implementing these principles can be complex – solutions that require expensive, time-consuming upgrades to existing network infrastructure make the move to Zero Trust prohibitive. Unisys Stealth is a flexible cybersecurity software built on identity-based encrypted microsegmentation that transforms your existing network – both on-premises and in the cloud – into a Zero Trust Network. Unisys Stealth products and services offer cybersecurity solutions that maximize your security posture, maintain regulatory compliance and protect your organization.