域名解析的过程（Domain name resolution process）.docVIP

域名解析的过程（Domain name resolution process） Domain name resolution process When the application process needs to map a host domain name to an IP address, the domain name parsing function is called, and the parsing function puts the converted domain name in the DNS request and sends it to the local domain name server via UDP message. After the local domain name server searches the domain name, it returns the corresponding IP address in the reply message. At the same time, the domain name server must also have information connected to other servers to support forwarding that cannot be resolved. If the domain name server cannot answer the request, the domain name server will become another customer in DNS, a request to resolve the root name servers, root name servers must be able to find all of the following two level domain name server, this has been to analysis, and so on, until the query to the requested domain name. Here is the supplement: What is the domain name? Say simply, is to use the domain name to your web space IP, let people through your registration of the domain name can easily access to your website a DNS service. Also called domain name, domain name server settings, configuration and reverse IP registration and so on, is the host name, such as WWW, letters, numbers and even a URL parsing character into 32 bits of the IP address, such as 0, or IP to address. Analysis to IP, such as to 2; to resolve the web site, such as to 2; that DNS is simple to remember the IP service is completed by the DNS server. The domain name to an IP address, and then the IP address of the host, a sub directory and binding domain. For example: Your address is: 888. The host IP you can bind is: 0 The virtual directory of your web site on the host is: 888 You can change the host header of the virtual directory 888 to: 888., and then you have to parse 888. to 0 However, does not support parsing If your new domain name is: And if your original page supports domain name binding, if