What are the basic knowledge related to website construction

I think we all know that Website construction In the process, we will meet many customers, some are professional and semi expert, some are vague about many things, and the concept is not so clear. The network construction company has collected some basic and applicable knowledge for your interested customers.

　　 (1) What is an IP address?

There are millions of hosts on the Internet. To distinguish these hosts, people assign each host a special address, called an IP address. Each host can be accessed through an IP address. The IP address consists of four parts of numbers, each part of which is no more than 256, separated by a decimal point.  

　　 (2) What is a fixed IP address?

A fixed IP address is an IP address that is permanently assigned to a computer application. Generally, special servers have fixed IP addresses.

　　 (3) What is a dynamic IP address?

Machines that access the Internet through modems and telephone lines do not have a fixed IP address, but an ISP dynamically assigns a temporary IP address. Ordinary people do not need to know the dynamic IP address, which is completed by the computer system.

　　 (4) What is a public IP address?

The Internet Information Center is responsible for public broadcasting. These IP addresses are assigned to organizations registered and applied to the internal network card. Access the Internet directly through it.

　　 (5) What is a private IP address?

Private address is an unregistered address, which is specially used for institutions.

The following table lists the reserved internal addressing addresses

Class a 10.0.0.0

　　b. Grade 0.0

c. Level 0

　　 (6) What is a domain name?

It is obviously very difficult to remember so many rough numbers, so the Internet provides domain names. Appropriate and easy to remember domain names can be made according to the company name and industry characteristics, which greatly facilitates people's access. For ordinary users, they only need to remember the domain name to read the web page. For example, if we go to Shenyang website to do the homepage, we only need to remember its domain name, regardless of its specific IP address.

　　 (7) What is domain name resolution?

Machines can only recognize each other's IP addresses. If there is a one-to-one correspondence between the domain name and the IP address, the domain name resolution service must be applied. Domain name resolution needs to be completed by a dedicated domain name resolution server, and the whole process is active.

　　 (8) What is the sub domain name?

Domain names have many levels, separated by dots. For example, the Chinese top-level domain name ends in CN, and all domains ending in CN are its sub domains. For example, sub domains.

　　 (9) What is domain name resolution?

Domain name resolution is a conversion process from domain name to IP address. Ip address is a numeric address that identifies your site on the network. In order to be easy to remember, use the domain name instead of the IP address to identify the site address. Domain name resolution is completed by DNS server.