Recently, Ali officially released its public dns-alidns. Prior to the occurrence of a DNS failure due to Taobao users can not normally browse and order the situation, so alidns mainly for the introduction of Taobao users, but also to meet users to play game brush Weibo and other online needs.
Alibaba public DNS service uses anycast technology, the Global unified service ip:223.5.5.5, 223.6.6.6, the National Data Center redundancy, simultaneously has the independent prevention attack system. At present, Ali public DNS platform enabled domain name alidns.com official online test.
DNS is the Internet as a domain name and IP address map to each other a distributed database, can make users more alidns.com convenient access to the Internet, and do not have to remember the machine can be directly read the number of IP strings.
The process by which the host name corresponds to the IP address is called Domain name resolution (or host name resolution). The DNS protocol runs on top of the UDP protocol, using port number 53. RFC 2181 has a canonical description of DNS in RFC documents, RFC 2136 describes dynamic updates for DNS, and RFC 2308 describes the reverse caching of DNS queries.
Windows 8
Open the Windows 8 System Control Panel, click the icon in the upper-right corner and click the "Network and Sharing Center" option.
Click the "Change adapter Settings" link on the left side of the network and shared center, as shown in the following figure:
Select the network connection that is being networked, I am here, the right mouse button in the menu select "Properties"
In the Network Connection Properties window, select Internet Protocol version 4 (TCP/IPV4), and then click Properties.
Select to use the specified DNS, enter 223.5.5.5 and 223.6.6.6 In the DNS server address, and then confirm that the exit is set to completion.
Windows 7
Open Network Connections by clicking the picture of the Start button's Start button, and then clicking Control Panel. In the search box, type the adapter, and then under Network and Sharing Center, click View Network Connections
Right-click the connection you want to change, and then click Properties. Administrator privileges Required if you are prompted for an administrator password or for confirmation, type the password or provide confirmation
Click the Networking tab. Under this connection using the following items, click Internet Protocol version 4 (TCP/IPV4) or Internet Protocol version 6 (Tcp/ipv6), and then click Properties
Click Use the following DNS server addresses, and then in the preferred DNS server and alternate DNS servers box, type the addresses of the primary and secondary DNS servers
Windows VISTA
Click the "Start" button and select Control Panel
Click "View network status and tasks."
Click "View status".
Click the "Properties" button.
Vista may require your permission to make changes. If so, click the Continue button.
Select Internet Protocol version 4 (TCP/IPV4), and then click the Properties button.
Click Use the following DNS server addresses, and then enter 223.5.5.5 and 223.6.6.6 In the preferred DNS server and the alternate DNS server.
Click the OK button, then click the "Close" button, click the "Close" button again, and close the Network and Shared Center window.
Windows XP
Select Control Panel from the Start menu
Click Network Connection from the Control Panel option.
Select your connection from the Network Connections window. If you have more than one connection, select your default/current connection.
Right-click Properties
Select Internet Protocol (TCP/IP) and click Properties.
Click Use the following DNS server addresses to enter 223.5.5.5 and 223.6.6.6 In the preferred DNS server and alternate DNS server.