Best IT Alerting Software for Linux of 2025

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 allows you to quickly find and solve problems. It scales them so that they can be derived either from on-premise, multi-cloud, or both. You now have the ability to use your entire IT stack and analytics to solve any problem, even those that are difficult to find. You can control and manage any technology and application with more than 500 plugins, including SAP, Oracle, Lotus or Citrix, Jboss, VMware, AWS and SQL Server.

Appchkr provides a comprehensive suite of software for uptime monitoring, alerting, and reporting, catering to a wide range of users from large networks and server farms to small businesses and personal websites. It is available for free for up to 10 targets, ensuring hands-free operation in the background. With a quick setup process, fast notification capabilities, and an unmatched combination of features and affordability, it supports any version of MS Windows or Linux. Appchkr effectively monitors both local area networks (LANs) and wide area networks (WANs), as well as internal and external internet connections. The service is distributed globally and offers reliable support, making it accessible to users everywhere. Designed to be efficient in terms of time, network resources, and financial investment, it includes specialized options for databases, facilities management, security, and quality assurance systems. Additionally, Appchkr integrates seamlessly with platforms like Slack and PagerDuty while providing public status pages for transparency. Its integrated diagnostic tools aid in reducing and preventing downtime, and it can be controlled through either a web browser or command line interchangeably. The auto-flex feature helps to keep costs down, and users benefit from extensive documentation to guide them through setup and use. This versatile monitoring solution is a valuable asset for anyone looking to maintain optimal system performance.

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.

Over 11,000 companies have installed Business LOG, making it the most popular tool for log management. Available in On-Premise or SaaS versions, with Agent Methods and Log Collector Agent less. Business LOG offers complete log analysis, reports, alerts, a powerful search engine, and flexible log storage.

IT performance monitoring does not just focus on monitoring CPU, memory, and network resources. eG Enterprise makes the user experience the center of your IT management and monitoring strategy. eG Enterprise allows you to measure the digital experience of your users and get deep visibility into the performance of the entire application delivery chain -- from code to user experiences to data center to cloud -- all from a single pane. You can also correlate performance across domains to pinpoint the root cause of problems proactively. eG Enterprise's machine learning and analytics capabilities enable IT teams to make smart decisions about right-sizing and optimizing for future growth. The result is happier users, increased productivity, improved IT efficiency, and tangible business ROI. eG Enterprise can be installed on-premise or as a SaaS service. Get a free trial of eG Enterprise today.

Checkmk is an IT monitoring system that allows system administrators, IT managers and DevOps teams, to quickly identify and resolve issues across their entire IT infrastructure (servers and applications, networks, storage and databases, containers, etc. Checkmk is used daily by more than 2,000 commercial customers worldwide and many other open-source users. Key product features * Service state monitoring with nearly 2,000 checks 'outside the box' * Event-based and log-based monitoring * Metrics, dynamic Graphing, and Long-Term Storage * Comprehensive reporting incl. Accessibility and SLAs * Flexible notifications and automated alert handling * Monitoring business processes and complex systems * Software and hardware inventory * Graphical, rule-based configuration and automated service discovery These are the top use cases * Server Monitoring * Network Monitoring * Application Monitoring * Database Monitoring * Storage Monitoring * Cloud Monitoring * Container Monitoring

Netreo is the best full-stack IT infrastructure management and observation platform. Netreo is a single source for truth for proactive performance monitoring and availability monitoring of large enterprise networks, infrastructure, and applications. Our solution is used by: IT executives should have full visibility of the business service, right down to the infrastructure and network that supports them. IT Engineering departments are used as a decision support system to plan and architect modern solutions. IT Operations teams can have real-time visibility into what is going wrong in their environment, which bottlenecks exist, and who it is affecting. All of these insights are available for systems and vendor mix in large heterogeneous environments that are constantly changing. We have a growing list of vendors that we support (over 350 integrations), including network vendors, storage, virtualization, and servers.

Nagios Core, the monitoring and alerting engine, is the core application that powers hundreds of Nagios project development. Nagios Core is the event scheduler, event processor, alert manager, and monitor for elements. It has several APIs that can be used to extend its capabilities to do additional tasks. It is implemented in C for performance reasons and is designed to run natively under Linux/*nix systems.

CruzOC is a multi-vendor, scalable network management and IT operations tool that provides robust but easy-to-use netops. CruzOC's integrated, automated management features include performance monitoring, configuration management, lifecycle management, and lifecycle management of 1000s of vendors. Administrators can use CruzOC to automate their data center operations and critical resources. This will improve network and service quality, speed up network deployments and lower operating expenses. The result is comprehensive and automated problem resolution from a single-pane-of-glass. Cruz Monitoring & Management. Monitoring & Analytics, NMS -- health, NPM traffic, log, and change. Automation & configuration management -- compliance and security -- orchestration, provisioning. Automated deployment -- auto-deploy, ZTP, remote deploy. Deployments are available both on-premises and in the cloud.

Bleemeo, a Cloud Monitoring Platform, allows IT teams and DevOps to monitor their infrastructure from servers to applications. It takes only 30 seconds to get a complete, live image of your infrastructure. Our agent finds services and creates checks. - Dashboards and notification rules for servers and other services are automatically created Available for Android and iOS - Kubernetes and containers are fully supported

IT administrators can use Uptime Infrastructure Monitor to consolidate performance monitoring and optimize their IT infrastructure. It is unlike its competitors and provides monitoring of a wide range of platforms and apps, the ability to set service-level arrangements, and support for both agent and non-agent monitoring.

Centreon is a global provider for business-aware IT monitoring to ensure high performance and continuous operations. The company's AIOps-ready platform, which is holistic and ready for use in today's complex hybrid cloud infrastructures, is designed to meet the needs of these distributed clouds. Centreon monitors all aspects of the IT Infrastructure, from Cloud-to Edge for a clear and comprehensive view. Centreon eliminates blind spots by monitoring all equipment, middleware, and applications that are part modern IT workflows. This includes legacy assets on-premise, private and public clouds, and all the way to edge of the network where smart devices and customers come together to create business value. Centreon is always up-to-date and can support even the most dynamic environments. It has auto-discovery capabilities that allow it to keep track of Software Defined Network (SDN), AWS or Azure cloud assets and Wi-Fi access points, as well as any other component of today’s agile IT infrastructure.

Bosun is a monitoring and alerting solution released under the MIT license by Stack Exchange, designed to be open-source. It features a powerful domain-specific language that allows users to evaluate alerts and generate comprehensive notifications. The system enables users to test their alerts against historical data, thereby streamlining the development process significantly. Its flexible expression language facilitates precise evaluation of time series data, allowing for meticulous monitoring. By leveraging historical data for testing alerts, users can minimize alert fatigue and ensure only relevant notifications are triggered when the system goes live. Bosun is compatible with various operating systems, including Linux, Windows, and Mac, as well as any OS supported by Go. The system supports arbitrary dimensions beyond just host-based metrics, offers aggregation capabilities, and automatically integrates new tags as they become available. Additionally, Scollector identifies new services autonomously and begins transmitting metrics without delay, which means that well-designed alerts can extend to these new services with reduced administrative effort. Finally, users can employ the Scollector agent to monitor not only Windows and Linux systems but also a range of common applications, ensuring comprehensive coverage across their infrastructure.

RapidAlerts streamlines internal communication by streamlining the way businesses communicate to their teams. Our software ensures critical information is delivered quickly across multiple channels including desktop alerts and scrolling tickers. We also offer corporate screensavers and mobile employee apps. Businesses can engage their employees in innovative ways with customizable features such as wallpaper and lockscreen management. RapidAlerts is a flexible and reliable solution for communicating critical events to team member, no matter what device or location they are on.