Whois queries are used to determine the IP address ranges associated with clients. A whois query can be run on most UNIX environments. In a Windows environment, the tools such as WsPingPro and Sam Spade can be used to perform whois queries. Whois queries can also be executed over the Web from www.arin.net and www.networksolutions.com.

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DNS disaster: first attacks reported

The first attacks that are likely to have stemmed from a serious Domain Name System flaw have been reported. Dan Kaminsky (Credit: Kaminsky’s blog) The existence of the Domain Name

Stealth, dangerous and still un-armed!

W.32Downadup.C, the third variant of the Conficker virus is more aggressive and trying to be stealth by disabling the security software installed on the machine. The new variant is focusing

Batten down the Hatches—10-Minute Tactics

The simplest way to defend your computer quickly against hackers is to use a firewall. So let’s look at your two fastest options. Either can be done in 10 minutes.Turn