Bill Heldman


William Heldman is an assistant IT director for a large municipal government in Colorado. His most recent book is MCSE: Windows 2000 Network Infrastructure Design (Sybex).

Hanging Out with the Classless Crowd 3
Learn how to subnet your network and master classless subnet notation.
Binary Numbers and Subnet Masks
This refresher course on binary numbers will help you understand how subnet masks work.
Network Monitor Basics
Understand Network Monitor's basic capabilities, learn how to use its features, and discover Network Monitor 2.0's new features.

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