DNS Hijacking (Web page does not open the workaround)

We are on the Internet, the essential is the DNS, here first introduce the relevant knowledge of the DNS.

DNS is the acronym for Domain Namesystem, which consists of a parser and a domain name server. A domain name server is a domain name and corresponding IP address that holds all the hosts in the network, and a server that converts the domain name to the IP address feature. 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 website, for example, we visit Baidu, Then we enter www.baidu.com in the browser and then through the network, through the resolver and the domain name server translation conversion, we 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 errors, then we will not be able to shun Lee's visit to this web page, even if the occasional access to the words are open as fast as the turtle. At this point we will manually set the IP address of the DNS server.

When the following is happening on our computer:

1. The home network is connected to the router, but the browser is opened not by its own previous homepage (it has not been manually modified), but another home page.

2. Slow speed, is obviously slow.

3. The picture part of the webpage cannot be opened.

4. Home page, level Two page can not be accessed, cannot open.

In this case after troubleshooting hardware (such as routers, or network cable, modem, about the router, see:), still appear, it is likely that DNS was hijacked.

Disclaimer: DNS Hijacking is a malicious program in your computer that modifies the IP address of the DNS you set. The mapping error that caused the URL to the IP address.

At this point, we first confirm whether the DNS is really hijacked:

Method: In the lower right corner of the computer, Network Sharing Center, local Area Connection, properties, Internet Protocol version 4, and then see if the IP address of the DNS that we set ourselves at the bottom is changed.

For example, DNS has been illegally modified.

Workaround:

At this point we can use "Automatically get DNS address", when automatically obtained, still not, we can according to the local broadband operator's actual DNS server address settings, generally prompt for DNS error or only QQ can not access the Web page problem will be resolved. At the same time, we can use a common DNS address: 114.114.114.114 (This is the first, the world's third open DNS service address, also known as 114DNS) or 8.8.8.8 (Google free DNS).

Restart the router after the setup is complete, which will break the net all at once. We can also check again if our settings are in effect.

In order to avoid malicious modification again, we'd better change the router login password (the original default account and password is admin). Modification Method:

We enter the Router management interface (enter 192.168.1.1 in the browser address bar).

In the last column on the left, you can change the login password. Such as:

If the problem persists, we will reset the router to factory settings (generally this solution is not a bad test) steps:

1. Enter "192.168.1.1" in the browser to enter the browser management interface.

2. Click "Restore factory Settings" in the last item in the left column and the router will restart automatically after completion, as

3. At this point we need to fill out some relevant information on the router,

4. Click "Setup Wizard" and select "ADSL virtual dialing".

5. Fill in the broadband "account password".

Also, for the sake of insurance, we can modify the login password of the router:

6. When determined, the router restarts automatically.

7. We can now use the router again.

At this point, we don't have to worry about the DNS being hijacked.

DNS Hijacking (Web page does not open the workaround)