Beginners: Four recruit learn to set domain name resolution

After registering their own domain name, how to see their own site content, with a http://www.aliyun.com/zixun/aggregation/11616.html "> Professional terminology is called" Domain name resolution.

In the relevant terminology has been introduced, the domain name and URL is not the same, domain name registration, only that you have the right to use the domain name, if not for the domain name resolution, then the domain name can not play its role, the resolved domain name may be used as an e-mail suffix, can also be used as a Web site to visit their own sites, so the necessary link to use the domain name is "domain name resolution."

We know that the domain name is for the convenience of memory and set up a set of address conversion system, to access a server on the Internet, the end must also be achieved through IP address, domain name resolution is to convert the domain name to the IP address process. A domain name can only correspond to one IP address, and multiple domain names may be resolved to an IP address at the same time. Domain name resolution needs to be done by a dedicated domain name resolution server (DNS).

Parsing process. For example, a domain name is: www.ithov.com, the implementation of HTTP services, if you want to see this site, to be resolved, first in the domain name registrar to pass a dedicated DNS server resolution to a Web server on a fixed IP: 211.214.1.***, Then, through the Web server to receive this domain name, www.ithov.com this domain map to this server. Then, enter www.ithov.com This domain can realize access to the content of the website. That is, the whole process of domain name parsing can be realized.

People are accustomed to memory domain name, but the machine only recognize each other IP address, domain name and IP address is one by one corresponding, the transformation between them is called Domain name resolution, domain name resolution needs to be specialized domain name resolution server to complete, the whole process is automatic.

Believe that a lot of people who applied for the domain name, often have such a question: Why register the domain name, bought the space, the website still can't open?

After the domain name is registered, only that you have the right to use the domain name, if not for domain name resolution, then the domain name can not play a real role, the domain name could be resolved as an e-mail suffix, can also be used as a Web site to visit their website (such as blog, Taobao shop, etc.), Therefore, the domain name to use the necessary link is "domain name resolution."

But many people are still deeply puzzled about the domain name resolution, so how to quickly learn to do the domain name resolution? Professional domain name Host service provider Mei Orange interconnection for your ideas:

First, learn four types of domain name resolution:

1 CNAME alias point: Also called host alias Record allows multiple names to be mapped to the same computer. Note: Usually the root domain name does not make CNAME point. (such as: cndns.com is the root domain name, www.cndns.com is a two-level domain name, "www" is the subdomain);

2 A record: is the IP record (that is to point to the IP address)

3 MX record: Also called the Mail record (used to do the enterprise mailbox point, the normal send and receive mail)

4 URL Forwarding: Jump to the target site. such as Www.cndns.net URL to www.cndns.com, when accessing www.cndns.net, jump to the space that www.cndns.com points to. The URL is also divided into implicit and not implied, take the previous example, to do the implied URL forwarding, access to cndns.net when the IE column is cndns.net, do not imply URL forwarding, access to display is cndns.com (and the Ministry of National information industry generally do not allow the implied URL, Unless the relevant valid documents are filed.

1. How to resolve the domain name to the virtual host? There are two steps to the space point, and any of the following two parsing schemes can be (take domain cndns.com as an example)