Two level directory advantages
 

General for small and medium enterprises or personal web site, here recommends the use of two level directory comparison rightly. If you use two level domain words, then an equivalent in the promotion of two different sites, many of the SEO details as well as the promotion of work needs to be done two times, website PR value and confidence will be two sites scattered, while the two level domain use would let the website becomes small, does not favor the site overall weight accumulation, two - on the contrary, it can make a website more, the search engine accumulated trust degree is higher, more conducive to the ranking and optimization. So using two level directory for general web site or the comparative advantages. But the use of two level directory is based on the premise that the theme of the website needs to be closely related to. If the subject is very different, it will disperse the whole site relevancy.

The following java code will create a 2-level directory hash for the String �cat.gif�. import java.io.File;. public class Directory Hash.

Secondary domain binding level directory actually very simple.

In the DNS domain name management background domain name forward, set secondary domain name forward to your target level directory.
After it has been submitted, in host record list will add a you just submit secondary domain name, the point to IP address and the main domain name is different. For example, information about the point is: 124.42.122.46. This is correct.
No matter you use virtual host, or independent server. As long as the main domain name can be normal visit can, do not need to be in virtual host or independent server setup secondary domain name again. (DNS in setting up the can through the secondary domain visited)

nice valuable post.