I wanted to reach out to the community as I just got laid off at my job as a Windows/VMWare system admin. I currently have an opportunity to take on a role as a Linux/Xen admin but the company is reluctant to hire me as it has been about 7 years since I was heavily engulfed in the *NIX world. They are bringing me in for a technical interview next week to see how I measure up. Until then, I really want to sharpen my skills, and so am looking for a project to work on that'll give me all the basics and some advanced knowledge to bring it all back to me.
Any suggestions on a project(s) are welcome!