This book contains 7 chapters. In chapter 1 is for introduction of domain network and its advantages. In chapter 2 contain various point line software, virtual Box, Gns3, Putty, Packet Tracer, Hardware, Router, Switch, In Chapter 3 introduce Open Shortest Path First, Virtual LAN, VLAN Trunking, VRRP, In Chapter 4 describe about Domain Name System, DNS Resource Record and its configuration, Configuration of DNS Server and DNS Commands. In Chapter 5 shows Active Directory and types of Domain, In Chapter 6 introduce about distributed File System, Configuration of DFS Server, File Server, Installation of File Server, In Chapter 7 is for future scope and conclusion.