"whois -h whois.arin.net n playbopy" didn't work

[John Hunter <johnny.h.hunter () gmail com>]

this is an example in book "nmap network scanning" [90], it didn't
work on my machine. it returned:

no match for n playboy.

Why?

Thanks

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Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
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