require 'socket'
ip = TCPSocket.gethostbyname('www.baidu.com')
return =>["www.baidu.com", [], 2, "61.135.169.125", "61.135.169.121"]
@ip = ip.last
ip = TCPSocket.gethostbyname('www.baidu.com')
return =>["www.baidu.com", [], 2, "61.135.169.125", "61.135.169.121"]
@ip = ip.last
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