Networking Domain

What in the World is a Networking Domain?

Have you ever heard of the word “domain”? The term is applicable in one of the two ways: as a site’s descriptor on the Internet or as technical term in local subnetwork.

Within its use on the Internet, a domain for example is an integral part of a network address. This includes addresses for other Internet protocols (SSH, IRC, and FTP), email addresses, and website addresses.

You can obtain your own domain by buying it from a domain registrar, picked off a list of trusted registrar. Most of the domains you encounter on the Net (.com, .edu, .net, .org) are classified as Top Level Domains (TLDs). All of the countries on this planet are assigned their own TLDs.

In relation with its use within a local subnetwork, a domain exists on a local area network (LAN) consisting of several servers and clients, all controlled by one central security database. These servers and clients need to authenticate only once directly to a domain controller, which is a centralized server.

This way, users don’t have to repeatedly authenticate to different services and servers. Furthermore, a domain, in its networking definition, is anything from database servers, computers, printers, devices, workstations, and users that, through network resources, share different data types.

Network resources

Each domain has a controller. This domain controller regulates the basic functions of basic domains it governs. It also has a role in managing the security of a network. In general, a domain, within the context of networking, functions as a means of managing all of user functions. This includes access and authentication of shared system resource, username and password, and assigning of specific resource privileges (user accounts, for example).

A simple network domain is characterized by many interconnected computers and workgroups. The domain itself is composed of combined workgroups, servers, and systems. domain may accommodate many different server types (such as print, database, and Web) and it depends greatly on the requirements of the network itself.

The thing known as network domain is actually an unofficial term. The term spreads in public, further cementing its use, through word of mouth. The term comes to be used in an attempt to separately recognize multiple networks of different computer. Let’s see this through an example:

a. Within the confine of Building A, half of the staff uses network, referred to as Network 1, henceforth. The network has Vlan 10 as its Vlan identifier.

b. The other hall of the staff uses 192.16830.0/24 network, referred to as Network 2 henceforth. The network has Vlan 20 as its Vlan identifier.

c. Within the confine of Building B, the staff uses network, referred to as Network 3 henceforth. The network has Vlan 11 as its Vlan identifier.

d. An R1 router is installed to serve all three networks as their gateway. All of the computers in both Building A and B are physically connected with each other through Ethernet cable.

Networks 2 and 3 can fully access each other while being routed through the R1. Network 1 is excluded from the other two, hence has no access to either.

e. Networks 2 and 3 are within the same network domain while Network 1 exists in its private domain.

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