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Old 10-16-2003, 05:13 AM   #1
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Registered: Oct 2003
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Question whois does not show hostname.

I am a linux newbie. I am using snort to log intrusive packets. Whenever i try to do a whois on the corresponding ip addresses, i get a note saying that the IP was not found...?

then how come it sent packets to my machine?
plz help

Old 10-16-2003, 10:48 PM   #2
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Registered: Mar 2003
Distribution: Fedora
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Try specifying a different whois server to use. If you don't, the whois command uses the default whois server, which seems like it never has the entries that I'm looking for.

I use to do most of lookups like this:

whois -h 123.456.789.123

Depending on the ip address you might have to use a different whois server, for example you might have to use the server to find ip addresses in asia. Unfortunately I don't think there is one end-all whois server that has every single ip in it (that would make too much sense), so you kind of have to fool aound with it. has a web interface that automates that for you and is a pretty handy tool when you need it.


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