Gitwin - Enable your Windows system as a powerful and secure Git repository. Supports ssh, http(s) transports. Gitweb with highlighter and gravatar support available.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
Zenoss Core - Zenoss (Zenoss Core) is an open source application, server and network management platform based on...
Opsview Atom - Monitor everything. Integrate anything. Scale anywhere.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Shinken - Nagios compatible monitoring framework, written in Python