What is DNS hijacking

DNS hijacking also known as domain name hijacking, refers to the hijacking of the network to intercept the domain name resolution request, analysis of the requested domain name, the scope of the review of the request to release, otherwise the return of the false IP address or do not make the request to lose the response, the effect is to a specific network can not respond or visit the false web site.

Basic principle:

DNS (domain name hijacking) is the network address (domain name, in the form of a string) to the real computer can recognize the network address (IP address), so that the computer can further communication, the delivery of Web sites and content. Because the domain name hijacking is often only in the specific hijacked network scope, so the Domain name server (DNS) outside this scope can return the normal IP address, the advanced user may set the DNS point to these normal domain name servers in the network setting to realize the normal visit to the website. So the domain name hijacking usually accompanies the measure--block the normal DNS IP.

If you know the real IP address of the domain name, you can use this IP instead of the domain name to access. For example, visit Baidu domain name, you can change access to 202.108.22.5, thus bypassing the domain name hijacking.