Open Source Monitoring System for performance and availability.
Simple, unobtrusive authentication for Node.js
An extensible authentication and authorization library for Clojure
opensource Virtual Appliance Factory
Task Scheduler for Java, Groovy, Javascript, python & ruby
Two-factor authentication system
Authentication, Access Control, and Single Sign-On
SNMP-Based Network Node Polling Suite
The *nix remote manager
PHP tools for developers and system administrators