Best Network Traffic Analysis (NTA) Software for Linux of 2025

Site24x7 provides unified cloud monitoring to support IT operations and DevOps within small and large organizations. The solution monitors real users' experiences on websites and apps from both desktop and mobile devices. DevOps teams can monitor and troubleshoot applications and servers, as well as network infrastructure, including private clouds and public clouds, with in-depth monitoring capabilities. Monitoring the end-user experience is done from more 100 locations around the globe and via various wireless carriers.

ManageEngine OpManager stands out as a robust tool for analyzing network traffic, delivering comprehensive insights into usage and performance metrics. It tracks traffic trends, bandwidth usage, and application efficiency throughout the network, empowering IT professionals to pinpoint congestion areas, resolve problems, and optimize resource distribution. Its capabilities include real-time monitoring, extensive reporting, and customizable dashboards, allowing organizations to visualize network activity, grasp user behaviors, and make data-driven decisions to improve network performance and efficiency.

NetFlow Analyzer provides real-time visibility to network bandwidth performance and leverages flow technologies. NetFlow Analyzer provides a comprehensive view of your network bandwidth usage and traffic patterns. It has been used to optimize thousands of networks worldwide. NetFlow Analyzer provides a single solution that analyzes, reports, and collects data about your network's bandwidth usage. NetFlow Analyzer can help you optimize bandwidth usage across more than a million interfaces worldwide. It also provides network forensics, network traffic analysis, and network forensics. To gain control over the most used applications, you can reconfigure policies using traffic shaping via ACLs and class-based policies. NetFlow Analyzer uses Cisco NBAR technology to provide deep visibility into Layer 7 traffic. It can also identify applications that use dynamic port numbers, or hide behind known ports.

Noction Flow Analyzer is a network monitoring, alerting, and analytics tool that can ingest NetFlow, IPFIX and sFlow data. Engineers can use the NetFlow analyzer to optimize their network and applications performance, control bandwidth usage, plan network capacity, monitor and alert, perform detailed BGP peering analysis and improve security.

Datadog is the cloud-age monitoring, security, and analytics platform for developers, IT operation teams, security engineers, and business users. Our SaaS platform integrates monitoring of infrastructure, application performance monitoring, and log management to provide unified and real-time monitoring of all our customers' technology stacks. Datadog is used by companies of all sizes and in many industries to enable digital transformation, cloud migration, collaboration among development, operations and security teams, accelerate time-to-market for applications, reduce the time it takes to solve problems, secure applications and infrastructure and understand user behavior to track key business metrics.

Malcolm serves as an open-source platform for security monitoring, aimed at assisting security experts in the collection, processing, and analysis of network data to facilitate threat detection and incident response. By integrating a suite of robust tools, it enables users to capture and visualize network traffic, log information, and security alerts effectively. The platform features a user-friendly interface that simplifies the investigation of potential threats, granting security analysts detailed insights into network activities. Scalability is a key aspect of Malcolm, as it offers versatile deployment options suitable for a range of environments, from small businesses to large corporations. Additionally, its modular architecture allows users to tailor the platform according to their unique security needs, while seamless integration with other observability tools enhances overall monitoring capabilities. Although Malcolm excels in general network traffic analysis, its developers recognize a specific demand within the community for tools that deliver insights into protocols employed in industrial control systems (ICS), thereby addressing a critical niche in security monitoring. This focus on ICS enhances the platform’s relevance in sectors where such systems are vital for operational integrity and safety.

NetFlow Analyzer provides net admins with an easy way to understand bandwidth consumption, trends, applications and traffic anomalies. It visualizes traffic by network devices, interfaces, subnets, traffic segments, and end users. NetFlow Analyzer uses Cisco® NetFlow (IPFIX, NSEL and sFlow), and other compatible netflow-like protocols. It assists net admins in bandwidth monitoring, network traffic investigation and reports. Companies can optimize their networks and applications, plan for network expansion, reduce time spent on troubleshooting, diagnostics, and increase security. NetVizura allows users to define custom traffic to monitor based on IP subnets, traffic characteristics such as protocol and service used. You can monitor specific traffic for each unit of your network, such as remote sites, departments, and collections of regional offices, by identifying them using IP subnets.

In the modern digital landscape, conventional security measures fall short in defending against cyber threats, which necessitates that organizations embrace a Zero Trust Network approach. This model operates on straightforward principles: no user or device is trusted, whether they are within the internal network or external to it, and access is minimized based on verified identity. While these principles are easy to understand, the process of implementation can pose significant challenges, particularly when it involves costly and lengthy upgrades to current network systems that may deter organizations from transitioning to Zero Trust. However, Unisys Stealth offers a versatile cybersecurity solution that leverages identity-based encrypted microsegmentation to seamlessly convert your existing infrastructure—whether on-premises or cloud-based—into a Zero Trust Network. With Unisys Stealth, businesses gain access to a suite of products and services designed to enhance their security posture, ensure regulatory adherence, and safeguard their operations. This innovative approach empowers organizations to proactively address vulnerabilities while fostering a more resilient security framework.