AmonOne

A modern, self-hosted server monitoring system with system monitoring, process monitoring and notifications

     

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Anthracite

Tracks and manages all events that can have business and/or operational impact (deploys, manual changes, outages, press releases, etc) and provides metrics and reports

     

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collectd

A daemon that collects system performance statistics periodically, and provides tons of plugins to store and analyze these values

     

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ConDep

ConDep is a open source infrastructure configuration and deployment DSL (Domain Specific Language) specifically targeted to (but not limited to) the Windows Server platform. If your familiar with tools like Chef and Puppet, ConDep does very much the same, but with native support for Windows.

     

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Consul

Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface. Register external services such as SaaS providers as well

     

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Glances

A cross-platform, curses-based monitoring tool written in Python

     

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Icinga

Icinga is an enterprise-grade monitoring system. It was forked from Nagios and has added many often new features and patches, including a HTML5 UI, REST interface, dynamic tables, etc. It is also backwards compatible with Nagios, so all the existing plugins can be reused.

     

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Instrumental

Instrumental is a real-time, high-scale application and server monitoring tool with intelligent alerts, a powerful query language, and free development accounts.

     

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Kibana

Kibana is a modern, beautiful visualization tool that works seamlessly with Logstash and ElasticSearch. It features a no-code setup, realtime analytics, and much more.

     

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log.io

Realtime log monitoring directly in the browser, without any persistence layer in the middle!

     

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Logster

Reads log files and generates metrics in Graphite, Ganglia or Amazon CloudWatch

     

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Monit

An open source utility for managing and monitoring processes, programs, files, directories and filesystems

     

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SaltStack

Salt is a powerful and different approach to infrastructure management, by focusing on high speed communications between large number of systems, and can perform orchestration, remote code execution and much more.

     

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Scales

Metrics for Python, tracks python state and statistics. Inspired by the Metrics library for Java

     

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Sentry

Automate error tracking to find and fix issues before your users even experience a crash. Sentry is open-source, real-time, and loved by 100,000 developers around the world.

     

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Statsd

A network daemon that listens and collects statistics and sends aggregates to many pluggable backend services

     

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Uptime

An externally deployable application that keeps pinging and monitoring the uptime and availability of your real applications and services. It helps you track these metrics from the outside without affecting any of your servers.

     

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Zabbix

An open source, enterprise-class monitoring framework

     

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