Networking
Open Textbook Library - An Introduction to Computer Networks - It covers the LAN, internetworking and transport layers, focusing primarily on TCP/IP. Particular attention is paid to congestion; other special topics include queuing, real-time traffic, network management, security, mininet and the ns simulator.
Open Textbook Library - Computer Networking - This open textbook aims to fill the gap between the open-source implementations and the open-source network specifications by providing a detailed but pedagogical description of the key principles that guide the operation of the Internet.
Open Textbook Library - Computer Networks– The aim of this textbook is to describe the available building materials and then to show how they can be used to construct a network from the ground up.