Event Log Explorer - Windows event log viewer software. Windows event log analysis, view and monitor security, system, and other logs on Windows servers and workstations
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
Event Viewer - Get help, support, and tutorials for Windows products—Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
Windows Event Viewer Plus - Windows Event Viewer Plus, a portable freeware app that lets you view Event Logs faster than the default in-built Windows Event Viewer and more!
Nagios - Complete monitoring and alerting for servers, switches, applications, and services