Firewall blocked Norton Internet Security Liveupdate

Hi all,

For company policy, we have 3 PCs no Internet access but still have network connection to server. That 3 PCs also have installed NIS 2011 .

I understand Norton Internet Security need to have Internet access for Liveupdate.
If we want to get that PCs for Liveupdate how to setup the rule on the firewall ?

e.g.  port forward from any to 

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Rich RumbleSecurity SamuraiCommented:
Your firewall has to understand DNS, which many do not believe it or not, what firewall are you going through to get to the internet?
Joe_LAIAuthor Commented:
Sorry, if I open the ports of 80 (HTTP), 21 (FTP) and 443 (HTTPS) on the firewall, the PCs  can use HTTP port to any website. That means they have to access Internet.

We don't want the PCs allowed to browse Internet.

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Rich RumbleSecurity SamuraiCommented:
You only open those ports to a few IP's ( or if your firewall can use DNS, then you can get more specific. So it would be possible for a person to browse symantecs site, but that would be all they cloud see. If the FW does dns then all they could see is the update url from symantec.
Joe_LAIAuthor Commented:
80 (HTTP), 21 (FTP) and 443 (HTTPS) is a general ports for NIS but Norton doens't give people what is the ip
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