Crash Dummy is a Java Web application to help IT professionals set up Java application server environments. It has several features to help make this easier, including simulating failures and diagnostics. Crash Dummy is particularly helpful for setting up complex clustered environments and monitoring infrastructure.
It's All Good is a simple service monitoring framework to make it easy to monitor various services on a server. Its API is dead simple, and a handful of modules are already available for common things like disk usage, checking that SMTP is running, SSL certs are valid, or a page's contents. It can easily be used with a service like Pingdom so that you can monitor your servers' health with only 1 alert (which you can get for free). It's small, compact, fast, and loads nicely on most mobile devices including your iPhone or Android device.
GAdmin-Control-Panel is a control panel that combines all GAdmintools server administration frontends. It is modular and adds start buttons for all currently installed GAdmintools applications. All images and application start buttons are scaled, aligned, and sized to give the best possible graphical layout.
TheSSS (The Smallest Server Suite) is a lightweight server suite distributed as a live CD. It is designed for system administrators who need a small (less than 30MB) set of server software for small local area networks. The supported servers are FTP, HTTP, SFTP, SSH, and Telnet. A proxy server (Polipo) with the Tor anonymizer is also included. The main security components are a 4MLinux Firewall (based on iptables) and Clam AntiVirus.