From Serebra Learning Corporation
UNIX System Administration 
This course presents the basics of administering a
UNIX operating system. It includes instruction on adding and removing users, backing up the file system, managing the file system, and manipulating the run-time environment. The course introduces the concept of system administration. It describes the duties of the system administrator, introduces the superuser and discusses how an administrator
more...
Win2000 Server Implementing Local Security and Policies 
...00 Server. You will learn to create new users and groups, add users to groups, remove users from groups, disable users, and assign passwords to users. Then, the course focuses on various problems that you might encounter while managing security on a
Windows 2000 Server for local user accounts. You will also learn about the causes for the error messages and the solutions that Windows 2000 Server
more...