This free guide is about DNS and (mostly) BIND 9.x on Linux (Fedora Core), BSD’s (FreeBSD, OpenBSD and NetBSD) and Windows (Win 2K, XP, Server 2003). It is meant for newbies, Rocket Scientist wannabees and anyone in between. …
Understanding OSI
Understanding OSI by Professor John Larmouth is freely available online. This book provides an intelligent near-beginner with an understanding of open systems interconnection (OSI). …
TCP/IP Internetworking
Each chapter of this free TCP/IP Internetworking guide can be downloaded in pdf format. …
The TCP/IP Guide
This is the free online version of The TCP/IP Guide: A Comprehensive, Illustrated Internet Protocols Reference. It is one of the best books to learn TCP/IP. The TCP/IP Guide provides a thorough description of the TCP/IP protocol suite, as well as additional materials needed by any student of internetworking. …
Asterisk The Definitive Guide Second Edition
You can download “Asterisk The Definitive Guide Second Edition” for free from O’Reilly Open Books Project. This book is for those new to Asterisk, but we assume that you’re familiar with basic Linux administration, networking, and other IT disciplines. …
Internetwork Design Guide
Internetwork Design Guide is a free online book by Cisco and it covers designing many types of Internetworks. This online book provides internetworking design and implementation information and helps you identify and implement practical internetworking strategies that are both flexible and scalable. …
Internetworking Technology Handbook
Internetworking Technology Handbook is a free online book by Cisco and it covers many topics related to internetworking technologies. An internetwork is a collection of individual networks, connected by intermediate networking devices, that functions as a single large network. …
Nmap Network Scanning
Free online book Nmap Network Scanning is the official guide to the Nmap Security Scanner, a free and open source utility used by millions of people for network discovery, administration, and security auditing. …
TCP/IP Fundamentals for Microsoft Windows
This online book is a structured, introductory approach to the basic concepts and principles of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite, how the most important protocols function, and their basic configuration in the Microsoft Windows Vista, Windows Server 2008, Windows XP, and Windows Server 2003 families of operating systems. …