DDNS

DDNS
http://changyang319.pixnet.net/blog/post/26956193-ddns%E8%A8%AD%E5%AE%9A%E6%95%99%E5%AD%B8%EF%BC%8C%E4%BD%BF%E7%94%A8d-link%E7%84%A1%E7%B7%9Aip%E5%88%86%E4%BA%AB%E5%99%A8