What about DNS errors?

DNS: Baidu Encyclopedia to me the explanation is-------DNS is the name System (domain name systems) abbreviation, it is composed of parser and domain name server. A domain name server is a server that holds the domain name and corresponding IP address of all the hosts in the network and has the ability to convert domain names to IP addresses. Where the domain name must correspond to an IP address, and the IP address does not necessarily have a domain name.

In fact, we usually visit the site, such as we visit Baidu, then we in the browser input such as 123.com and then through the network, through the parser and domain name server translation conversion, We have successfully access to 220.181.111.85 this Baidu's real IP address, so from here we can also see that if the DNS error or set the error, then we will not be able to successfully access this page, even if the occasional access to the words are very slow to open very slowly. In this experience, setting up DNS is the IP address of the DNS server.

In general, we do not have to set up DNS, the system by default is in the state of automatic acquisition.

XP Viewing method: Start------Control Panel-----Network connection-------Local Area Connection-----Properties------Internet Protocol (TCP/IP)------Properties we can see the default settings. Vista View method: Start-----Control Panel------Network and Share Center-----Point the View status-------properties after the local connection--------Internet Protocol 4 (TCP/IPV4)--------properties and then you can see it. (This is my own set, so not automatically get the option)

If we find that we are prompted for DNS errors automatically, then we need to manually set the correct DNS address to the system. Select "Use the following DNS server address", and then fill in the address you get is OK, generally we fill in two, a preferred DNS server address, an alternate DNS server address (this can not fill in).

Free DNS address: 114.114.114.114 (domestic speed is relatively fast, recommend the use of ★★★★★), we can according to their location of the actual broadband operator DNS server address settings, if you use the same as me is Shanghai Telecom Broadband, then you can set up and I like. Set it up and then make sure. Then you can rerun your browser to check the effect. General hint DNS error or can only QQ can not access the Web page problem will be resolved (sometimes because of IE problems can not access the Web page problem, we can set the Internet properties of the last page to reset IE).

The above method is good for a friend who is fixed in the Internet in a region, but for some people who travel frequently or often go to different places, such fixed after more trouble, change a province will manually change a DNS address, then I here for you to introduce a small software, named Treewalk, Can achieve the native DNS resolution, after downloading double-click will automatically unzip and install, after installation will automatically set your preferred DNS for 127.0.0.1, then in your computer services will be more than one Treewalk DNS services, if you want to stop the service, you do the following: Start-----All Programs------treewalk-----Service-----Stop DNS Service ~ ~ ~ If you want to turn on the service, select the Start DNS service. The software is basically good, that is, when you unplug the network cable or disconnect, there will be a brief system of suspended animation (in fact, in the process of viewing the service is a very high CPU caused by the process, you can end it and return to normal)

p.s. Partial killing of soft may kill some of its files under the installation directory, so the software is only recommended for use by veteran computers.

Then we are refreshing the DNS cache, click Start, in the operation of the input cmd direct return.

In the following command, we enter the Ipconfig/flushdns, which is the direct return flush of the cache.

Finally, the refresh is done.

Universal knowledge: The emergence of DNS failure, this afternoon is January 21, 2014 3:30 P.M. DNS error, in fact, this situation is really hard to say, do not rule out the hacker behavior caused, but has now returned to normal. Almost two-thirds of the country's DNS has been paralysed since 3:30 P.M. today.

Finally, I recommend a simple and easy to use small software, can help you quickly set up the appropriate network environment for your current DNS server address. The software is called the comet DNS optimizer (Fast DNS). This is green software, do not install, directly on the hard disk to run, the interface is as follows: We just click on "One key to complete (recommended)" can be, the bottom of the status bar will be shown, "Speed is in progress, please wait ..." There are a total of 1919 built-in global DNS server IP addresses, the entire testing process is about 2 minutes to complete. It will then automatically write you the minimum delay of 10 addresses to your system, and then prompted the "Automatic Setup complete" Click OK to end the setting. Then we can click on the "Response time" above, so that these DNS addresses can be automatically arranged according to the speed of response time, we can see the software automatically set up which DNS server IP address, the following figure. On my computer, I automatically set 10 of the boxes above. Basically are the local DNS server addresses in Shanghai.

P.S. This software is very convenient to use, just a key can help you fix the settings, strongly recommended that everyone use. The measured results are also very good.