Identifying ISO Addresses

[Alar]

I have recently purchase the CA Firewall, Which keeps presenting me with different DNS, and asking for permissions to "Allow" or "Deny". How do I identify those addresses. When I typed them onto the Internet line in my Browser, it refused to go to that location. Furthermore, it also advises of certain files on my PC wanting to connect with the Internet. Some I can identify, others are a mystery. Can anyone shed some light on this, please.
Thank You.

[Alar]

Title should have been as above, in initial message. A

[Shinma]

ARIN (http://www.arin.net/whois/index.html)
AfrNIC (http://www.afrinic.net/cgi-bin/whois)
APNIC (http://www.apnic.net)
RIPE (http://www.ripe.net/perl/whois)

[Alar]

Thank You Shinma. Just what I needed. Now to resolve the other part of the PGM queery. A

[Shinma]

You're welcome.

Personally, I'm lazy, so I just use Sygate to bactrace and whois an IP. :D
Unless I have to whois at another website...