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Unit-1
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- Internetworking with TCP/IP
- Figure 1: Different networks connected to Internet How TCP/IP Works
Introduction to Network
Administration Network Administration 7 among multiple computers in a network, typically a local area network (LAN), a private network or to other networks. Linux well supports to configure and commissioning of various network servers and services such as proxy servers, Domain name systems, Mail servers, Web servers, etc that are to be accessed through internet. Internetworking with TCP/IP Internetworking is the practice of connecting a computer network with other networks through the use of network gateways that provide a common method of routing data packets between the networks. The most notable example of internetworking is the Internet, which a network of networks based on many underlying hardware technologies, but unified by an internetworking protocol standard, referred to as the Internet Protocol Suite and known as TCP/IP. TCP/IP ( Transmission Control Protocol (TCP) and the Internet Protocol (IP)) is a networking model and provides end-to-end connectivity specifying how data should be formatted, addressed, transmitted, routed and received at the destination. It has four abstraction layers which are used to sort all related protocols according to the scope of networking involved. The Figure 1 shows different networks connected to internet. Figure 1: Different networks connected to Internet How TCP/IP Works TCP/IP for IP version 4 (IPv4) is a networking protocol suite that uses to communicate over the internet with other computers. It interacts with naming services like Domain Name System (DNS) and security technologies, such as IPsec for secure transfer of IP packets between computers. Linux provides extensive support for the Transmission Control Protocol/Internet Protocol (TCP/IP) suite, as both a protocol and a set of services for connectivity and management of IP internetworks. Knowledge of the basic concepts of TCP/IP is an absolute requirement for the proper understanding of the configuration, deployment, and troubleshooting of IP-based Linux server. |
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