dradis - Dradis is the open-source reporting and collaboration tool for IT security professionals.
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
Lampyre - Lampyre - an efficient data analysis and OSINT multi-tool for everyone.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
SpiderFoot - Open source intelligence (OSINT) automation tool.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services