Press Release

Zenoss Surpasses 50K Downloads

Network and Systems Monitoring Project Surpasses 50K Downloads in 120 Days from Sourceforge.net

2006/11/10 -

Annapolis, MD - November 10, 2006 - Zenoss, Inc., a leading provider of open source enterprise network and systems monitoring software, today announced that the Zenoss project has had over 50,000 downloads in the last 120 days-making it the world's most popular commercial open source IT management platform based on download statistics from SourceForge.net, the leading open source distribution site. Launched in February 2006, the Zenoss IT monitoring solution has seen a meteoric rise to an activity rank of 250 out of more than 133,000 open source projects registered on SourceForge.

"We're extremely pleased with the world-wide adoption and positive feedback Zenoss has received in such a short time," said Zenoss Project Lead Erik Dahl. "Clearly there is tremendous demand for alternatives to the traditional solutions for network and systems monitoring."

Zenoss-developed by experienced systems and network operators-is the most complete IT monitoring product available as an open source product. In contrast to point solutions that offer narrow capabilities and proprietary enterprise management suites that are complicated and expensive, Zenoss delivers a complete view of an organization's IT infrastructure through an integrated, easy-to-deploy, open source software package.

The key features of Zenoss include:

• Cross-Layer Monitoring - Zenoss monitors the entire infrastructure including network devices, server hardware, operating systems, applications, software versions, and environmental controls.
• Inventory and Configuration Model - Zenoss populates (using auto-discovery) and maintains a complete database of the IT infrastructure including configuration details, dependencies, and logical views.
• Availability Monitoring - End to end, active testing of infrastructure elements and application services, including process monitoring, simple ping tests and more sophisticated "synthetic transactions."
• Performance Monitoring - Zenoss tracks and graphs over time a virtually unlimited set of performance metrics across all infrastructure components. Alerts are generated when Zenoss detects breaches of end-user thresholds.
• Event Management - Zenoss collects events and alarms from throughout the infrastructure into a central repository where they are correlated, prioritized, and archived for historical analysis. Rules are configured by end users to generate pages and/or emails as matching conditions are discovered.

Open source software is gaining enterprise adoption in virtually every infrastructure category. From databases to server operating systems, systems management is the next logical segment for users to reap the benefits of open source.

"We are grateful to all of those who have downloaded Zenoss, joined our community, and contributed to the project," said Zenoss CEO Bill Karpovich. "This milestone is a great first step towards our mission of simplifying IT management through the power of open source."

The Zenoss project is hosted at: http://sourceforge.net/projects/zenoss.

About Zenoss, Inc.

Recently named one of the "Top 10 Open Source Companies to Watch" by Network World, Zenoss is an open source network and systems management software company based in Annapolis, MD. Zenoss provides the most complete open source monitoring platform as a lower-cost and easier-to-deploy alternative to traditional proprietary solutions. For more information, please visit www.zenoss.com .