restrict internet access

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what’s best way restrict internet access on group of computers?  i know can go through mmc , disable internet access altogether on local machine – there way through group policy?  also there way restrict machines time frame access specific sites, facebook , youtube, before work hours, lunchtime , on? 

 

we’re running windows server 2003 standard edition.

 

thanks much,

d

i set using firewall or preferably proxy server.
most firewalls can restrict access sites if wan't control access using active directory groups/users suggest take @ microsoft isa server. http://www.microsoft.com/forefront/edgesecurity/isaserver/en/us/default.aspx
mcts: windows server 2008 active directory configuration
blog: http://www.nixadmins.net


Windows Server  >  Group Policy



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