What file is the domain name resolution file hosts? What's the effect?

the domain name resolution file hosts what files. What's the effect?

1. Speed up Domain name resolution

For Web sites to visit frequently, we can configure the domain name and IP mapping relationships in hosts so that when we enter a domain name computer, we can quickly resolve IP without requesting a DNS server on the network.

2. Easy LAN Users

In many units of the local area network, there will be a server for users to use. However, because the LAN rarely set up a DNS server, access to these services to enter the difficult to remember the IP address, for many people is quite troublesome. Now you can give these servers an easy to remember name, and then set up an IP map in the hosts, so we will enter the name of the server later on the line.

3. Screen Web site

Now a lot of web sites without user consent to install a variety of plug-ins to your computer, some may be trojans or viruses. For these sites we can use hosts to map the site's domain name to the wrong IP or its own computer's IP, so no access. For example, do not want to visit www.XXXX.com, then we write the following in the hosts:

127.0.0.1 www.XXXX.com #屏蔽的网站
0.0.0.0 www.XXXX.com #屏蔽的网站

So the computer resolution of the domain name to the native or wrong IP, to achieve the purpose of shielding.

4. Smooth Connection System

For Lotus servers and some database servers, access is inaccessible if you enter the IP address directly, and you can only enter the server name to access it. Then we configure the hosts file, so that the input server name can be successfully connected.

Finally, it is pointed out that the Hosts file configuration mapping is static, if the computer on the network changes, please update the IP address in time, otherwise it will not be accessible.

5. Force the designation of a domain name corresponding to an IP address