Network hijacking What does it mean? How to understand? How to detect

　　Take a look at how to detect their own websites is not a case of hijacking?
　　iis7 website monitoring
　　whether the site was hijacked, whether DNS is contaminated, the site opened to check the speed of the test.
　　How to understand what network hijacking? Consider the following example.
　　Carrefour a total of three, one of which is FMCG (food), on the second floor living home appliances, electronic digital home appliances on the third floor and office supplies.
　　You must take the escalator to the third floor to get to the entrance. Then layer by layer under the escalator to the first floor from inside the cash register, then exit. This is in fact most of the conventional design method of large supermarkets.
　　The purpose is to force you to go through as much of their counter this type of super normal flow rate is the largest FMCG life, and you have to buy these things "after" you should not have required other goods counters, designer the aim is naturally want to see you suddenly (or find your own) desire to purchase, thus increasing their sales when those goods.
　　Put on the appearance of the network hijacking understand is that you need to go through the path from your PC (mobile phone) to the home router, then switch cell - cell routing - Telecom (China Netcom) switches, routing, network management - to ( various counties) routing network terminal.
　　And then to higher-level gateway (not list), in the process you go through each network device can be modified to your Road King within his jurisdiction.
　　For example, you want to access A website, any one of them can put you resolve to B site, even if you have connected to the A site, it can replace the original content you want to search into something else.
　　You can also visit the normal URL, search the normal content, the site had to be sent to your content replaced by something else.
　　This is the network hijacking, saying it should be relatively easy to understand.