Xymon is a system for monitoring of hosts and networks, inspired by the Big Brother system. It collects information about the health of your computers, the applications running on them, and the network connectivity between them. All of this information is presented in a set of simple, intuitive webpages that are updated frequently to reflect changes in the status of your systems.
It provides real-time monitoring, an easy web-interface, historical data, availability reports and performance graphs.
Xymon was previously known as Hobbit.
Key Features
- Handles monitoring lots of systems
- Keeps most of the ever-changing data in memory instead of on-disk
- Has a centralized configuration
- Easy to setup and deploy
- Xymon clients require no configuration changes when installed on multiple hosts
Website: www.xymon.com
Support: Documentation
Developer: Henrik Stoerner
License: GNU General Public License v2.0

Xymon is written in C. Learn C with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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