If you’re looking for a solid web-based Linux admin GUI, look no further than the tried and true Webmin. Jack Wallen shows you how to install it on both Ubuntu Server and CentOS If you’ve been around Linux long enough, you know about Webmin. If not, let me introduce you to one of the first open source, web-based admin GUIs created for the Linux platform.
Link: How to install the Webmin web-based Linux admin GUI
via http://www.techrepublic.com