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Nagios Exchange - The official site for hundreds of community-contributed Nagios plugins, addons, extensions, enhancements, and more!

Nagios is the industry-standard in IT infrastructure monitoring. Nagios provides enterprise-class Open Source monitoring of hosts, services, applications, and networks. Learn why organizations around the world trust Nagios to handle their IT infras...

IT Best Practices, How-tos, Product Reviews, discussions, articles for IT Professionals in small and medium businesses

AlienVault provides support and certification services for professional management and deployment of OSSIM

Nagios Enterprises provides commercial solutions around Nagios - the industry standard in IT infrastructure monitoring. Learn why organizations around the world trust our products to handle their IT infrastructure monitoring and business process con...

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

ScottyP's NMIT Course Blog

VMware is the global leader in virtualization software, providing desktop and server virtualization products for virtual infrastructure solutions.

We minimize your everyday IT problems by providing easy to use open source network monitoring tools. op5 Monitor is a comprehensive Open Source network monitoring software that is easy to use.