Trade data-driven transport mode selection

WIn7 Host File Modification Guide Host file is Trade data-driven transport mode selectiona very important file in a computer network, which contains the correspondence between the network address and host name of the computer. When communicating on the network, the computer needs to find the corresponding IP address according to the host name to communicate. To achieve this purpose, the operating system will first look for the local Host file before looking for DNS (Domain Name System). If the host name and the corresponding IP address are found in the file, it will directly use this address for communication, not like DNS. Look for it like that. Why do you need to modify the Host file? The Host file in Win7 is an empty file by default, which does not contain any correspondence. However, weSometimes it is necessary to set up a domain name locally, or in some cases, it is necessary to modify the IP address of a domain name. At this time, it is necessary to modify the Host file and add correspondence to it. For example, we can point the IP address of www.example.com to a virtual machine, or point the IP address of a domain name to a local test server. The path and format of the Host file in Win7 are C:\Windows\System32\drivers\etc\hosts. It is an ASCII text file, which can be opened by text editors such as notepad. Each valid host name should occupy a separate line, and the format is: IP AddressHost Name # Comments, where IP Address is the IP address corresponding to the host name, Host Name is the host name, and # Comments is the optional annotation information. The steps for modifying the Host file are the specific steps to modify the Host file in Win7: 1. Start text editors such as notepad as an administrator. Two. In the file-open menu, select the directory where the Host file is located, such as C:\Windows\System32\drivers\etc\, and select the Host file. 3. After opening a text editor such as Notepad as an administrator, add the information you want to modify in the Host file, such as: 127.0.0.1 example.Com192.168.1.20 www.example.com4. Save the file and close the text editor. 5. Test in the browser, such as entering www.example.com in the browser. If the modified IP address is the local address, for example: 127.0.0.1, it will jump to the local web page. Notes When modifying the Host file, you need to pay attention to the following points: 1. To modify the Host file, you need to start the text editor as an administrator. Two. When modifying the Host file, you need to ensure that the file is encoded as ANSI, not other formats such as Unicode. 3. After modifying the Host file, it may be necessary to empty the DNS cache of the browser for the modification to take effect. Summary Although the Host file looks very simple, it is a very important file.Its function is not only to set up a virtual domain name locally, but also to carry out network debugging and security control in some cases. Therefore, mastering the modification method of Host files can bring a lot of convenience and efficiency to our network work.

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