For LAN, what is the core of network control?

The core of network control is the "network server". The network server is the core component of the computer LAN; the LAN connects network servers, network workstations, printers and other network interconnection devices through network transmission media to realize system management files, share application software, office equipment, send work schedules and other communication services.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

For LAN, the core of network control is the "network server".

The network server is the network control core of the LAN.

The network server is the core component of the computer LAN. The network operating system runs on the network server, and the efficiency of the network server directly affects the efficiency of the entire network. Therefore, high-end computers or dedicated server computers are generally used as network servers.

The network server mainly has the following four functions:

• Run the network operating system, control and coordinate the work between computers in the network, and satisfy the user's needs to the greatest extent request, and respond and process.

• Store and manage shared resources in the network, such as databases, files, applications, disk space, printers, plotters, etc.

• Serves the application programs of each workstation. For example, using the client/server (Client/Server) structure, the network server not only acts as a network server, but also acts as an application server.

• Supervise and control network activities, conduct actual management of the network, allocate system resources, understand and adjust system operating status, close/start certain resources, etc.

A LAN is a private network, typically within or near a building, such as a home, office, or factory. Local area networks are widely used to connect personal computers and consumer electronic devices, allowing them to share resources and exchange information. When LANs are used in companies, they are called enterprise networks.

A local area network connects various computers, external devices and databases in a certain area to form a computer communication network, and connects to local area networks or databases in other places through dedicated data lines to form a larger information processing system. LAN connects network servers, network workstations, printers and other network interconnection devices through network transmission media to realize system management files, share application software, office equipment, send work schedules and other communication services. The LAN is a closed network, which can prevent information leakage and external network virus attacks to a certain extent, and has high security. However, once an incident such as a hacker attack occurs, it is very likely to cause the entire LAN to be paralyzed, and the entire network will be paralyzed. All work cannot be carried out, and a large number of company secrets are even leaked, causing serious damage to the company's business development. In 2017, the country promulgated the "Cybersecurity Law of the People's Republic of China", which officially came into effect on June 1. It clearly stipulates network security and information security from a legal perspective, and puts forward corresponding requirements for network operators and users. Improve the security of network use.

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