ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
ActivTrak - Understand how work gets done. Collect logs and screenshots from Windows, Mac OS and Chrome OS computers.
AppZero - AppZero is a monitoring and migration tool that allows users to keep track of different applications and servers in both simple and complex IT environments.
Time Doctor - Time Tracking and Time Management Software that is accurate and helps you to get a lot more done each day.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
Hubstaff - Simple yet powerful employee work tracker with screenshots, timesheets, billing, in-depth reports, and more. Understand productivity issues and act on them.