Web page Cannot find a solution to a server or DNS error

Source: Internet
Author: User
Tags parse error nslookup nslookup command

Open a Web page with a "No server or DNS error" problem I'm sure you've all met, can be on the QQ, Thunder download, and directly enter the IP address can be successfully boarded, but could not open the Web page (IE, Ttravel and the World Window 3.0); On the network to search for solutions If you have encountered a similar problem, please read it slowly.

(1) Using Nslookup to determine whether a DNS resolution is really a fault: (This step is to confirm that the DNS error is caused)

To fully determine whether the DNS resolution of the fault will need to be through the system with the Nslookup to solve.

Step one: Verify that your system is operating on Windows 2000 and Windows XP, and then enter command line mode by "Start-> run-> input cmd".

The second step: Enter the nslookup command and return to enter the DNS resolution query interface.

Step three: The Command Line window displays the DNS server address used by the current system, for example, the author's DNS server IP is

Fourth step: Next Enter the site you can not access the corresponding domain name. For example, the author input www.softer.com, if not access, then DNS resolution should not be normal. We will receive a message from DNS request timed Out,timeout was 2 seconds. This means that our computer does have a DNS resolution problem.

Tip: If DNS parsing is normal, feedback back to the correct IP address, such as the author with www.sohu.com this address for query resolution, will get name:sohu.com,addresses:, of information.

(2) Query the DNS server is working properly: (This step is to query your DNS, remember broadband to connect)

At this point we will look at the number of DNS addresses used by our computer and inquire about his operation.

Step one: Verify that your system is operating on Windows 2000 and Windows XP, and then enter command line mode by "Start-> run-> input cmd". (If Vista or Win7 is the same)

Step Two: Enter the Ipconfig/all command to query the network parameters.

Step three: In Ipconfig/all display information we can see a place that says DNS SERVERS ("DNS Server" is displayed under Vista or Win7), this is our DNS server address. For example, the author is and From this address can be seen as an extranet address, if the use of extranet DNS resolution error, we can replace a different DNS server address to solve the problem.

Fourth step: If the DNS server is displayed in the company's internal network address, so that your company's DNS resolution work is to the company's internal DNS server to complete, when we need to check this DNS server, Perform a nslookup operation on the DNS server to see if it resolves correctly. Resolves DNS service failures on DNS servers, and generally solves problems.

(3) To clear the DNS caching information method:

When a computer has access to a domain name, not every access requires help from the DNS server, in general, when the resolution is completed once, the resolution entry is saved in the computer's DNS cache list, if the DNS resolution changes, because the DNS cache list information has not changed, When the computer accesses the domain name, it still does not connect to the DNS server to obtain the latest resolution information, and resolves it based on the cached correspondence that is saved on its own computer, which can cause a DNS resolution failure. At this point we should resolve the failure by clearing the DNS cache commands.

The first step: Through the "Start-> run-> input cmd" into the command line mode.

Step two: In the command line mode we can see in the ipconfig/? There is a parameter named/flushdns, which is the command to clear the DNS cache information.

Step three: Execute the IPCONFIG/FLUSHDNS command, indicating that the current computer's cached information has been successfully purged when the "successfully flushed" DNS resolver cache has been successfully flushed (DNS resolution caching).

Fourth step: The next time we visit the domain name, we will go to the DNS server to obtain the most recent resolution address, no longer because the previous cache caused a parse error failure.

(4) Modify the Hosts file law: (This method I have not tried, but modify the Hosts file, you can try to use or optimize the software such as the master)

The modification of the hosts method is to modify the corresponding relationship of DNS in the Hosts file so as to realize the correct resolution. Because the local computer accesses a domain name, it first looks at the hosts file in the local system, and the resolution relationship in the Hosts file is greater than the resolution relationship on the DNS server.

So when we want to bind a domain name to an IP address, we can do so by adding a resolution entry in the Hosts file.

Step one: Start-> search, and then look for files called hosts.

Step two: Of course, the reader who already knows his path can go directly to the C:windows system32driversetc directory to find the Hosts file. If your system is Windows 2000, you should look for it in the C:WINNTSYSTEM32DRIVERSETC directory.

Step three: Double-click the Hosts file and choose to open it with the Notepad program.

Fourth step: We will then see all the contents of the Hosts file, by default only one line of content " localhost". (Other lines preceded with # are not real content, just help information)

Fifth step: You want to do DNS resolution of the entries added to the Hosts file, the specific format is to write the domain name corresponding to the IP address, and then the space to receive domain name information. For example, the author added " www.ftedu.gov.cn" and " www.ftedu.gov.cn" two entries.

The sixth step: after setting up our visit to www.ftedu.gov.cn will automatically be based on the intranet or outside the network to resolve.

(I'm using tp-link without wiring, the above approach doesn't solve my problem, but in the process of trying, these are still worth learning; If you have a direct broadband connection and you have this problem, try this approach.) )

Second, I began to suspect that the problem is routing. Because I either plug the line or use wireless, the result is the same. (In fact, can be directly connected to the port test can be excluded routing problems, only then did not think, Khan, and then after a number of computer tests to rule out only then, I entered the official website of Tp-link, the route upgraded (please check the model), routing is stable, can still not open the Web page.

(Incidentally, my route accidentally spilled water, I immediately pulled the power, then the air is not dry, it is estimated that the use of a time later, there will be four LAN lights all bright, completely unusable, after a period of power failure and can be used by the situation; I have been distressed for a long time, then learn a trick, and then teach you:

① first open the route, with water directly, right, direct water, remember water not too big is;

② at the same time with a toothbrush, such as the hard brush, along the circuit scrubbing, the power is moderate; chip edge remember to carefully brush, because before the water, so if not dry on the power, may cause oxidation, resulting in circuit breakers and the above situation;

③ after scouring, with hair dryer blow dry, remember to remember, especially those gaps in the place;

④ after blowing, preferably in the sun or ventilated place dry for a period of time, not too short, or burn don't blame me ha)

Third, in a large number of attempts fruitless, almost intend to restore (forget to back up the. T) or reload, accidentally let a friend to send a Firefox browser (Firefox) (click to download), holding to try the mentality after installation, Access success! (Uh, description, not in advertising, but at that time the mood excited point, "broken net" for several days AH), is still only Firefox can open the Web page, the specific situation has yet to be studied, first published this article for everyone emergency, there are new developments, I will immediately revise this article. (modified! See below)


With the help of a buddy, finally got the problem! Here's a summary:

① Please confirm the situation is to be able to go on the Q, not the Internet. (Diagnostic basis: normal broadband dialing, login Q or MSN, etc. all normal, but QQ Mini home also displayed as "Can't find Web page" words)

② the above "One" method is invalid.

③ Please check here to see if it is checked.

Right-click IE icon (or open IE click "Tools", or from Control Panel) "Internet Options" → "connection" tab → "LAN settings" → uncheck these 3 check boxes (drawings)

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