In-depth explanations of networking and TCP/IP protocols simplify the process of learning to build, maintain, and troubleshoot networks in this hands-on technology guide. Covering both Linux and Windows, this book is applicable to almost any network, and includes visual information in the form of diagrams and screenshots, making ideas easier to understand. A reprint of the 2003 edition, this thorough reference also explains how to easily build small test networks to practice on and includes troubleshooting information throughout to help users solve complex problems with a deep understanding of the concepts. A focus on what users will need to know in their day-to-day work keeps the range of topics narrow while many detailed appendices provide extra insight into broader issues.