What Is DNS Resolving?

Domain name resolution is a service that directs domain names to web space IPs so that people can easily access websites through registered domain names. An IP address is a digital address that identifies a site on the network. To facilitate memory, a domain name is used instead of an IP address to identify a site address. Domain name resolution is the process of converting a domain name to an IP address. The domain name resolution is done by the DNS server.

DNS

How can I see the contents of my website after registering a domain name with a domain name registrar, a technical term is called "domain name resolution".

A domain name is a set of address translation systems specially created for the convenience of memory. To access a server on the Internet, you must finally pass

When the application process requires a

The domain name resolution process is: domain name-DNS (domain name resolution

Domain name resolution

Pan-domain name resolution refers to resolving * domain names to the same IP. Add any sub-domain name in front of the domain name to access the web address pointed to. If the domain name is a.com, that is to say all * .a.com set up under the domain name a.com resolve to the same IP address. For example, setting **. A.com will automatically resolve to the same IP address as a.com.

Domain name resolution

Intelligent domain name resolution is that in addition to the general basic DNS resolution function, it can also automatically identify the source of the visitor, and resolve the same domain name intelligent DNS to the IP of China Netcom or Telecom of the two-line machine in order to access your website nearby.

MX Domain name resolution MX records

Route record, users can point the mail server under this domain name to their own mail server, and then they can control all the mailbox settings by themselves. You only need to fill in the IP address of your server online, and all the mails under your domain name will be transferred to the corresponding mail server you set up yourself.

CNAME Domain name resolution CNAME records

CNAME is also a common record category, it is an alias record (Canonical Name). When the DNS system queries the name on the left side of CNAME, it will turn to the name on the right side of CNAME for further inquiry, and it will track to the last PTR or A name. It will respond after the successful query, otherwise it will fail. This record allows you to map multiple names to the same computer. Unlike the A record, the CNAME alias record can be a description of a domain name and not necessarily an IP address. Usually used for computers that provide both WWW and MAIL services.

TTL Domain name resolution TTL value

The full name is "Time To Live", which simply means that the DNS record is cached on the DNS server.

A Domain name resolution A record

The web server's IP points to A (Address) record is used to specify the IP address record corresponding to the host name (or domain name).

URL Domain name resolution URL forwarding

Forwarding function: If you do not have an independent server (that is, without an independent IP address) or you also have a domain name B, and you want to access the content of domain name B when you want to access domain name A, then you can forward by URL to realise. URL forwarding can be forwarded to a certain directory or even a certain file. However, cname is not allowed. This is the main difference between the URL forwarding and cname. A domain name record: A (Address) record is the record corresponding to the domain name and IP. Domain name alias record: An alias (CName, Canonical Name) record is a record corresponding to a domain name and its alias. Dynamic domain name resolution: The IP corresponding to the domain name in the A record is a static IP. Resolving a domain name to a dynamic IP is called dynamic domain name resolution. Domain name service providers generally only provide A records for free, and do not provide dynamic domain name resolution for free.

Domain Name Resolver

A domain name resolver is an intermediary that translates domain names into IP addresses where hosts are located. Usually when you go online, you type in a domain name address, and the computer will first search the DNS server for the corresponding IP address. After the server finds the corresponding value, it will return the IP address to your browser. At this time, the browser will issue the Browse the request so that the process of domain name addressing is complete. The operating system will save the corresponding value of your commonly used domain name IP address. When you browse frequently visited websites, you can directly extract the corresponding IP address from the system's DNS cache to speed up the speed of connecting to the website.

Domain Name Resolution Software

The DNS system is driven by a variety of DNS software, including: BIND (Berkeley Internet Name Domae most commonly used namedaemon. DJBDNS (Dan J Bernstein's DNS implementation) MaraDNS NSD (Name Server Daemon) PowerDNS).

DNS implements a hierarchical namespace by allowing a name server to "delegate" some of its name services (known as zones) to sub-servers. In addition, DNS provides some additional information, such as system aliases, contact information, and which host is acting as the mail hub for a system group or domain.