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2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
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Site by David Winterbottom (user root).

Reverse DNS lookups

Terminal - Reverse DNS lookups
sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).in-addr.arpa domain name pointer\(.*\)\./\4.\3.\2.\1\5/' \ lookups.txt
2009-08-22 09:37:20
User: hemanth
Functions: sed
-1
Up
Down
Reverse DNS lookups

Reverse DNS lookups, from a file with list of IP's, here the file is called lookups.txt

Add to favourites | Report as malicious

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
dig -x 74.125.45.100
2009-09-28 15:13:34
User: postrational
Functions: dig
Tags: dig host reverse dns nslookup
4
Up
Down
Perform a reverse DNS lookup

Performs a reverse DNS lookup, variants include:

nslookup 74.125.45.100

or:

host 74.125.45.100
Show sample output | Comments (0) | Add to favourites | Report as malicious

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What others think

Glad you're enjoying our blog. In future, however, it would be nice if you gave some attribution when you're posting our content here on commandlinefu. This one is from http://blog.commandlinekungfu.com/2009/03/episode-5-simple-text-manipulation.html

Hal Pomeranz

Comment by Hal_Pomeranz 236 weeks and 4 days ago

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