NSFOCUS - NSFOCUS provides comprehensive, end-to-end protection from the debilitating effects of DDoS attacks.

ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.

AWS Shield - AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards web applications running on AWS. 

RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems

VeriSign - VeriSign Authentication Services provides solutions that allow companies & consumers to engage...

Nagios - Complete monitoring and alerting for servers, switches, applications, and services