M&MA

Socket Programming: "An application programming interface (ATI) use for interprocess communication (IPC) . A well defined method of connecting two process locally or across a network it is protocol and language interdependent and often referred as Berkeley socket or BSD Socket."

Installation and configuration of DNS Server: "There are several applications in the application layer of the Internet model that follow  the client/server paradigm". The client/server programs can be divided into two categories: Client server DNS those that can be directly used by the user, such as e-mail, and those that support other  application programs.The Domain Name System (DNS) is a supporting program that  is used by other programs such as e-mail.