7 Free Server management tools for IT professionals

FilterZen 3.5:  It allows you to dynamically filter lists, document libraries, data views and other web parts on the fly. It can automatically or interactively, choose from a wide range of specialized filtering mechanisms. 

Xmanager: It is a powerful and easy-to-use PC X server that runs on windows platforms. It allows you to bring remote Unix/Linux desktops to your Windows PC seamlessly. You can also run remote X applications securely through the SSH protocol even when your Windows PC inside a private network and a firewall is between your OC and the remote server.

3:YaIPB: Yet another IPB agent is an open-source IPB agent, used to access into the login server and then connect to the Internet. The goal of YaIPB is to be a full-featured IPB agent, and hence a good alternative against the official you IPB agent.

4: Repos Server : It is  an installer to set up a subversion server on Windows with Apache HTTP. The project integrates Apache2, OpensSSL, PHP and subversion.

5: ISPConfig : ISP management and Hosting Control Panel. ISPConfig manages one or more web servers, mail servers, BIND DNS server, FTP servers, MySQL databases and virtual Servers with an easy to use web interface for administrators, resellers and clients.