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

问题描述

如何在给定 IP 地址的情况下查找主机名?此外，如果不存在此类反向 DNS 条目，我该如何指定超时时间?试图让事情尽可能快.或者，还有更好的方法?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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