- Monit
- Ganglia
- Munin
- Cacti
- Nagios
- Zabbix
- Observium
- Zenoss
- Collectd
- Argus
- BandwidthD
- Pandora FMS
- Zenoss Core
- Splunk
- Xymon
- Icinga
- ntopng – High-Speed Web-based Traffic Analysis and Flow Collection.
- Scout Realtime – 30 years ago, top was born. scout_realtime is top for the modern developer.
- StatsD - Etsy – Daemon for easy but powerful stats aggregation
- Thruk – Webinterface for Nagios, Icinga, Shinken and Naemon
- Anturis — Cloud monitoring for servers and websites, the monitoring of it infrastructure
- AppDynamics to APM and server monitoring
- AppNeta Solutions for APM
- BigPanda — automation of incident management
- Boundary — Monitor servers and applications for developers
- Datadog — Cloud monitoring as a service
- Dynatrace — APM services
- Gear5 — System alert and performance monitoring of sites
- Idera — Monitoring of it infrastructure
- Instrumental — Monitor applications in real-time
- LogicMonitor — hosted monitoring of networks, servers, applications, storage and cloud services
- New Relic — System monitoring and APM
- Ruxit — System performance monitoring web applications
- Scoutapp — Hosted server monitoring
- Sematext — System performance monitoring alerts and anomaly detection
- Solarwinds — server monitoring and APM
- Stackify — Application Monitoring & performance for DevOps insight.
- WhatsUpGold — software for monitoring of networks and servers
- Manageengine Opmanager for network management and monitoring
- Count.ly — Mobile Analytics platform
- CA Technologies
- Riverbed — performance Management
- Sealion — This service enables you to quickly diagnose problems on Linux servers.
- Site24x7 — External monitoring service for websites, developed by ZOHO Corp. Website & Server Monitoring Service.
- Serverdensity Monitoring system for servers on FreeBSD, Windows, OS X and Linux, with a custom plugin.
- Keymetrics PM2 process Manager for NodeJS and server monitoring.
- Nixstats is a free service to monitor and display server statistics. While free, simply register on the website.
- Sensu — Service monitoring and telemetry with an open core.
- TrueSight Pulse
- https://papertrailapp.com/plans
- https://www.loggly.com/plans-and-pricing/
- http://graylog2.org/
- http://logstash.net/
- http://loganalyzer.adiscon.com/
- http://www.elasticsearch.org/overview/kibana/
- http://logio.org/
- http://cloudi.org/faq.html#7_CouchDB
- http://kr.github.io/beanstalkd/
- http://memcached.org/
- http://redis.io/
- http://www.hazelcast.com/
- https://juju.ubuntu.com/charms/
- https://github.com/gocircuit/circuit
- http://docs.tsuru.io/en/latest/faq.html
- https://gist.github.com/denji/b07085a66043bad246dd
- http://habrahabr.ru/company/webzilla/blog/220707/
- Network Monitoring Tools — slac.stanford.edu – This is a list of tools used for Network (both LAN and WAN) Monitoring tools and where to find out more about them