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Check it yourself, first of all, they are two parts, the network number and the host number, but they can be divided into four categories.
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An IP address is a 32-bit address assigned to each host connected to the Internet, which is a unified address format provided by the IP protocol, which assigns a logical address to each network and each host on the Internet, so as to mask the difference in physical addresses.
The domain name is used to find the name used on the Internet, and it is an important identification on the Internet.
A domain name address, represented by an Internet address, in the form of a host, sub domain, and domain, as opposed to a numeric IP address. A domain address is also known as a fully qualified domain name.
Conceptual definition. The way to identify a computer online is by using an IP address. A set of IP address numbers is not easy to remember, so choose a meaningful and easy-to-remember name for the server on the Internet, and the address of this name is the domain name server.
Since the IP address of the machine is really distinguished, when the user enters the domain name, the browser must first go to a host with a database corresponding to the domain name and IP address to query the IP address of the computer, and the queried host is called the domain name server (DNS).
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1. Domain name.
It is the name used on the Internet to find **, and it is an important identification on the Internet.
2. IP address.
It is a 32-bit address assigned to each host connected to the Internet.
IP address is a unified address format provided by the IP protocol, which assigns a logical address to every network and each host on the Internet to mask the difference in physical addresses.
3. Relationships. When a user accesses a host, the domain name must be "translated" into the corresponding IP address, and then the host can be contacted through the IP address, and all future communications will use the IP address This "translation" process, which is the so-called domain name resolution; The process of deriving a domain name address from an IP address in turn is called domain name reverse resolution.
Fourth, there are two types of correspondence.
1. One-to-one.
IP addresses on the Internet are unique, and an IP address corresponds to a unique host. A given domain name address can find a unique corresponding IP address.
2. One-to-many.
A computer provides multiple services, both as a www server and as a mail server, the IP address is still unique, but different domain names can be given according to the multiple services provided by the computer, and one IP address corresponds to multiple domain names.
That's it, the above two don't talk about you, it's just that I'm a half-person who looks confused. >>>More
Pisces encyclopedia business card.
Pisces is one of the zodiac constellations, with an area of square degrees, accounting for the area of the whole day, and the area ranks fourteenth among the 88 constellations of the whole day. Pisces passes through the mid-night center on September 27 every year. There are 50 stars in the constellation Pisces, the brightest star is the right two (Pisces), and the apparent magnitude is. >>>More
Isn't it over buying a history book? Or look at the back of the dictionary.
Let me briefly say it: you must know that the network speed of optical fiber Internet access and ADSL Internet access is different, generally speaking, the fiber speed is relatively fast, suitable for Internet cafes, large and medium-sized enterprises, and the transmission signal speed of optical fiber can reach between 500 and 700k s. (ADSL) internet speed is average. >>>More
This boy is not worth knowing, it is not advisable to say that the person you love is not advisable, and it is not advisable to ridicule the girl you like with other boys. So whether he has a crush on her or not, don't pay attention to it, the real love for you is not yet the age to be able to truly understand. I'll talk about love later.