This application assigns a fixed domain name to your Android phone even though the IP address can change.
This app is designed specifically for Dyn.com.
For the generic dynamic DNS client that works with all dynamic DNS providers, including no-ip.com, zoneedit.com, joker.com, enom.com, please see my other app.
此应用程序分配一个固定的域名到你的Andr??oid手机，即使IP地址可以改变。
这个程序是Dyn.com专门设计的。
对于所有的动态DNS提供商，包括no-ip.com，zoneedit.com，joker.com，enom.com工程通用动态DNS客户端，请参阅我的其他应用程序。

Use URL.openConnection() instead of DefaultHttpClient.
Fix a permission problem on Android 5.0.
No longer support Android versions below 2.2.