http://os.51cto.com/art/200901/106622.htm Rhel vsftpd配置
http://blog.chinaunix.net/uid-25472509-id-3225695.html
http://minyupeng.blog.163.com/blog/static/2215449920079189265272/
http://www.chinaunix.net/old_jh/4/198859.html
http://www.kuqin.com/networkprog/20080512/8361.html
http://goodcandle.cnblogs.com/archive/2005/12/10/294652.aspx
