Chapter 14 Firewalls
•To selectively block/allow inbound or outbound traffic between inside host/networks and outside host/networks. Remember that filters can not distinguish traffic originating from an inside host or an outside host by IP address.
•The firewall performs better than filtering if you need to check many rules.
•Use the firewall if you need routine
•The firewall can block specific URL traffic that might occur in the future. The URL can be saved in an Access Control List (ACL) database.
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