transform host to ip ex : www.baidu.com -> 220.181.111.188
For Win/OSX
transform host to ip ex : www.baidu.com -> 220.181.111.188
transform host to ip ex : www.baidu.com -> 220.181.111.188
For Win/OSX
transform host to ip ex : www.baidu.com -> 220.181.111.188