ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
ProBIND - ProBIND is a web application designed for managing the DNS zones for one or more servers running the ISC BIND DNS server software.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
facileManager - facileManager is a modular suite of web apps built with the system administrator in mind. Say good-bye to manual management of services running on multiple servers.
Netumo - Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.
Webmin - Webmin is a web-based interface for system administration for Unix.