Zabbix: Zabbix is a popular open-source monitoring software that offers extensive monitoring capabilities for servers, networks, and applications. It provides features like real-time monitoring, alerting, and data visualization.
Nagios: Nagios is another widely used open-source monitoring tool known for its flexibility and scalability. It allows monitoring of servers, network devices, applications, and services. Nagios can send alerts and notifications when issues arise.
Prometheus: Prometheus is an open-source monitoring system that focuses on time-series data collection and alerting. It is particularly well-suited for monitoring cloud-native applications and microservices architectures.
Grafana: While not a monitoring tool itself, Grafana is often used alongside monitoring systems like Prometheus to visualize and analyze monitoring data. It offers a rich set of visualization options and dashboards.
Datadog: Datadog is a cloud-based monitoring and analytics platform that provides comprehensive monitoring solutions for servers, databases, applications, and cloud services. It offers features like real-time alerting, dashboarding, and log management.
New Relic: New Relic is a SaaS-based application performance monitoring (APM) tool that helps monitor the performance of web applications and services. It offers features like real-time performance metrics, error tracking, and distributed tracing.
These are just a few options to consider based on your specific needs and preferences.