A dynamic IP address is a way of dynamically assigning an IP address when needed. A dynamic IP address corresponds to a static IP address. The so-called dynamic IP address means that every time you go online, the operator will randomly assign a dynamic IP address, while a static IP address means that a dynamic IP address is used every time.
For dynamic IP, you need to automatically obtain an IP address when connecting to the network so that users can surf the Internet normally. Static IP is an IP address assigned to users by ISPs or network devices. It can directly connect to the Internet, so there is no need to obtain an IP address. Now many users still understand dynamic IP and static IP in the concept of obtaining IP or fixed IP. Let Bian Xiao introduce you to more information.
Static IP should be called fixed IP. If the operator gives you a fixed IP, it will also tell you the corresponding mask and gateway. Then, you can configure this IP in the local connection, so that when you start, there will be one less IP acquisition process. Of course, you can ignore it. In fact, fixed IP is mostly used for servers published to the outside world. As we all know, when we enter a web page, it is the URL. The DNS server can know your server IP through the URL and provide services. If you do not need a fixed IP, but let the server obtain it all the time, then the DNS will not know which IP your URL points to, and it will not be able to provide services.
The difference between static IP and dynamic IP
How can static IP still have users, but not all, to increase the flexibility of using IP addresses, use dynamic IP? In fact, it is DNS. When we want to visit Baidu, we enter the address in the browser. However, in the network, IP is used as the original and destination address of data transmission, not the website domain name. The role of DNS is to translate the website domain name into IP, which is convenient for users to remember. So in order not to update DNS records frequently, the advantages of static IP addresses are highlighted. Dynamic IP is not a fixed IP, which can be changed after redialing, and dynamic domain name is a domain name dynamic resolution provided, so that users can use dynamic domain names to connect to the network when they can't remember the dynamic IP address or Y address.
Static IP can be directly connected to the Internet. This IP will be divided into a fixed IP address when the ISP operator installs the dedicated line, which greatly increases the stability and convenience of connecting to the network. Thus avoiding the trouble of network connection.
This is the difference between static IP and dynamic IP. Static IP has a disadvantage that is not a disadvantage, that is, the cost will be higher, while dynamic IP will be cheaper, but each has its own advantages. You can choose according to your own use.
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