Python从1秒超时的IP查找主机名 [英] Python lookup hostname from IP with 1 second timeout

问题描述

如何查找给定IP地址的主机名？此外，如果不存在这样的反向DNS条目，我如何指定超时？试图保持尽可能快的东西。还是有更好的方法？谢谢！

How can I look up a hostname given an IP address? Furthermore, how can I specify a timeout in case no such reverse DNS entry exists? Trying to keep things as fast as possible. Or is there a better way? Thank you!

推荐答案

>>> import socket
>>> socket.gethostbyaddr("69.59.196.211")
('stackoverflow.com', ['211.196.59.69.in-addr.arpa'], ['69.59.196.211'])

为了在函数上实现超时，这个stackoverflow线程有答案。

For implementing the timeout on the function, this stackoverflow thread has answers on that.

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