Want to get started with a real OS. Here is some guide: http://matt.might.net/articles/basic-unix/
A good guide for windows and powershell users.
Single account management
My goal is to set-up a service that can replace my AD server or my Mac OS X server.
First requirement:
All user-account log-ins are stored on a central password server.
Users can log-in from Mac OS X machines using the password on the password server.
Users can log-in from Windows machines using the password on the password server.
Users can log-in on Apache configurations using the password on the password server.
Auxiliary requirements:
Home folders are configured on the password server.
Home folders are configured on the password server but residing on a third server.
Users can log-in from Unix machines using the password on the password server.
Final goal:
Allow unlimited window users on a domain without buying individual CALs.
or
Replace Mac OS X server to run on commodity hardware.
Comments and remarks are welcome.