Nagios (formerly Netsaint) is a daemon written in C that is designed to monitor networked hosts and services. It has the ability to notify contacts (via email, pager or other methods) when problems arise and are resolved. Host and service checks are performed by external "plugins", making it easy to write custom checks in your language of choice. Several CGIs are included in order to allow you to view the current and historical status via a Web browser, and a WAP interface is also provided to allow you to acknowlege problems and disable notifications from an internet-ready cellphone.

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    Nagios Support Contract Survey Online

    Due to the high level of interest in Nagios support contracts we've received from the community, we are investigating how to best offer support options. Tell us what you'd like to see in an official support contract for Nagios by participating in ... [More] our online survey. Three lucky (randomly chosen) participants will each win a $50 Amazon.com gift certificate. Click here to take the support survey. [Less]

    New Nagios Book from Packt Publishing Due in October



    Packt Publishing will be releasing a new book by Wojciech Kocjan in October titled "Learning Nagios 3.0". More information on the book, as well as ordering information can be found here. If you're relatively new to Nagios, I'd definitely recommend checking this out!

    New "Nagios 3 Enterprise Network Monitoring" Book from Syngress



    Several Nagios community members have contributed to a new book published by Syngress titled "
    Nagios 3 Enterprise Network Monitoring". A valuable book to add to your collection. Congrats to the community members who participated in this book!

    Nagios is Winner of InfoWorld's 2008 BOSSIE Award



    Nagios is honored as being one of Infoworld's Best of Open Source Software ("BOSSIE") 2008 Award winners. Nagios won the "Server Monitoring" category as seen here. Full article linking to all the OSS winners can be found here. Thanks to everyone in the community for making Nagios such a huge success!

    NETWAYS Nagios Conference Agenda Online



    The agenda for the NETWAYS Nagios Conference, which runs Sept 11-12 in Nuremberg, Germany is now online. The conference will cover a large variety of topics around Nagios, with just over 50% of the presentations being held in English. ... [More] You can view the agenda, as well as register for the conference by visiting http://www.netways.de/de/nagios_konferenz/. [Less]

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Who uses Nagios?

Henry Bauer lmontrieux Almad Michael Thalmeier cormander Joner Cyrre Worm David Precious crazedsanity hubert Aristedes Maniatis rmuller Paulo Albuquerque

Who contributes to Nagios?

whurley Andreas Ericsson egalstad kdebisschop zarzax
I'm a contributor

Who manages Nagios?

I'm a manager

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Project Cost

This calculator estimates how much it would cost to hire a team to write this project from scratch. More »
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Codebase 120,315
Effort (est.) 30 Person Years
Avg. Salary $ year
$ 1,645,325