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Available for
windows* mac
linux** unix

network-management network-services monitoring nagios snmp ipv6

Download Nagios
Nagios is an open source monitoring systems that keeps an eye on your network, hosts and even services using plug-ins and SNMP. It's web-based user interface allow you to quickly discover problems and track their cause - and it also provides easy access to all the information your need about your hosts, etc. Web and mail are just some of the services Nagios it capable of monitoring - on top of that it will monitor load, memory and disk usage on the hosts running your services. Nagios can also send notifications through either e-mail, instant messaging or SMS.

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Open source software similar to Nagios

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Nagios is an open source alternative to

HP OpenView Network Node Manager 7.5
Available for: windows mac linux unix java
HP OpenView Network Node Manager is state-of-the-art network monitoring and more. Using SNMP and other technologies it retrieves the information it requires. HP OpenView has many features of which a... Read more

Nagios news feed

Audio Alerts With Nagios XI
Many of you have asked about generating audio alerts in Nagios XI. Troy Lea put together a document on doing exactly that on Raspberry Pi. Even though, this is not an officially supported setup, we...
Will It Monitor?
We often get asked “Will Nagios monitor XYZ?” so we built a device to answer just that question. Will it monitor? Let’s find out!
Nagios XI 5.3.0 Released
Nagios is pleased to announce the release of Nagios XI 5.3.0. This release includes improvements to the back-end memory usage, improved stability of Nagios XI, and overall better performance...
Announcing the Nagios Knowledge Base
The Nagios Support Team has been working hard to compile our new Nagios Support Knowledge Base! Almost everyone who has used a Nagios product is familiar with our documentation.  We pride ourselves...

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