Enter IP addresses you want to reverse DNS lookup in ip.txt, one IP address per line.

Run ip-reverse-dns-lookup.pl from perl by entering 
	> perl ip-reverse-dns-lookup.pl 

ip-output.txt will be made, containing IP address and host name looked up from the IP. It is very easy to import this to Excel and such.

Updated on 5/17/2024 to include timeout version (ip-reverse-dns-lookup-timeout.pl)

(C)Tsubasa Kato 2013 - 2024

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