Best Log Monitoring Tools for Linux

Graylog combines continuous log monitoring with explainable AI to give IT, DevOps, and security teams real-time visibility and faster insight across complex environments. It centralizes logs from cloud, on-prem, and hybrid systems, then uses AI-driven summaries and anomaly detection to highlight what truly matters—whether it’s a performance issue, a failed deployment, or a security threat. With dashboards, thresholds, and guided remediation built in, teams can move from alert to action in seconds. Graylog’s AI helps cut through the noise, identify root causes, and keep infrastructure stable, secure, and compliant—delivering centralized log monitoring without compromise.

Empower Your Current Team to Achieve Enterprise-Level Security An all-in-one solution with SIEM, endpoint visibility, 24/7 monitoring, and automated response to reduce complexity, increase visibility and speed up time to respond. We handle the security heavy lifting, so you get time back in your day. With out-of-the-box detections, pre-filtered alerts, and response playbooks, IT teams can achieve real security value with Blumira. Quick Deployment, Immediate Results: Integrates with your tech stack and fully deploy, with no warm-up period, in hours All-You-Can-Eat Data Ingest: Predictable pricing and with unlimited data logging for full-lifecycle detection Compliance Made Easy: 1 year data retention included, pre-built reports, and 24/7 automated monitoring 99.7% CSAT Support: Solution Architects for product support, the Incident Detection and Response Team creating new detections, and 24/7 SecOps support

Grafana Labs provides an open and composable observability stack built around Grafana, the leading open source technology for dashboards and visualization. Recognized as a 2025 Gartner® Magic Quadrant™ Leader for Observability Platforms and positioned furthest to the right for Completeness of Vision, Grafana Labs supports over 25M users and 5,000+ customers—including Bloomberg, Citigroup, Dell Technologies, Salesforce, and TomTom. The LGTM Stack combines Grafana for visualization, Mimir for metrics, Loki for logs, and Tempo for traces. Grafana Cloud, the fully managed offering, accelerates time to value with turnkey solutions for Kubernetes monitoring, incident response, load testing, and more. It features Adaptive Metrics for cost-efficient data aggregation and native OpenTelemetry support. Built on open standards, Grafana empowers teams to visualize and correlate data from any source—without vendor lock-in—whether self-managed or in the cloud. Grafana Cloud scales with you, securely.

With more than 50,000 customer installations across the five continents, Pandora FMS is a truly all-in-one monitoring solution, covering all traditional silos for specific monitoring: servers, networks, applications, logs, synthetic/transactional, remote control, inventory, etc. Pandora FMS gives you the agility to find and solve problems quickly, scaling them so they can be derived from any source, on-premise, multi cloud or both of them mixed. Now you have that capability across your entire IT stack and analytics to find any problem, even the ones that are hard to find. Thanks to more than 500 plugins available, you can control and manage any application and technology, from SAP, Oracle, Lotus, Citrix or Jboss to VMware, AWS, SQL Server, Redhat, Websphere, etc.

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.

Rely on the most widely deployed observability platform available, built on the proven Elastic Stack (also known as the ELK Stack) to converge silos, delivering unified visibility and actionable insights. To effectively monitor and gain insights across your distributed systems, you need to have all your observability data in one stack. Break down silos by bringing together the application, infrastructure, and user data into a unified solution for end-to-end observability and alerting. Combine limitless telemetry data collection and search-powered problem resolution in a unified solution for optimal operational and business results. Converge data silos by ingesting all your telemetry data (metrics, logs, and traces) from any source in an open, extensible, and scalable platform. Accelerate problem resolution with automatic anomaly detection powered by machine learning and rich data analytics.

Apache Log4j is a versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases. The project is actively maintained by a team of volunteers and supported by a big community. Log4j bundles a rich set of components to assist various use cases. Appenders targeting files, network sockets, databases, SMTP servers, etc. Layouts that can render CSV, HTML, JSON, Syslog, etc. formatted outputs. Filters based on log event rates, regular expressions, scripts, time, etc. Lookups for accessing system properties, environment variables, log event fields, etc. Log4j is built with solid reliability in mind. It can automatically reload its configuration upon modification and will do so without losing log events while reconfiguration occurs. When configured correctly, Log4j can deliver excelling performance without almost any burden on the Java garbage collector, and it will do so without sacrificing reliability.

Achieve complete security observability with powerful insights from your log data. Improve your infrastructure visibility and enhance threat prevention with a versatile multi-platform tool. With support for over 100 operating system versions and more than 120 configurable modules, gain comprehensive insights and increased security. Cut the cost of your SIEM solution by reducing noisy and unnecessary log data. Filter events, truncate unused fields, and remove duplicates to increase the quality of your logs. Collect and aggregate logs from systems across the entire breadth of your organization with a single tool. Reduce complexity in managing security-related events and decrease detection and response times. Empower your organization to meet compliance requirements by centralizing some logs in an SIEM and archiving others in your long-term storage. NXLog Platform is an on-premises solution for centralized log management, with versatile processing.

Centreon is a global provider of business-aware IT monitoring for always-on operations and performance excellence. The company’s holistic, AIOps-ready platform is designed for today’s complex, distributed hybrid cloud infrastructures. Centreon monitors the complete IT Infrastructure from Cloud-to-Edge for a clear and comprehensive view. Centreon removes blind spots, monitoring all equipment, middleware and applications that are part of modern IT workflows, from on-premise legacy assets to private and public cloud environments, all the way to the edge of the network, where smart devices and customers combine to create business value. Centreon is constantly current, able to support the most dynamic environments. With auto-discovery capabilities it can keep track of Software-Defined Network (SDN) elements, AWS or Azure cloud assets, Wi-Fi access points or any other component of today’s agile IT infrastructure.