http://blog.sina.com.cn/s/blog_13cc013b50102vzz8.html
Centos svn:
http://blog.csdn.net/zhongru0072010/article/details/50815512
http://blog.csdn.net/u012486840/article/details/52524389
http://blog.csdn.net/u012966563/article/details/51277181
