Basic Firewall functionality Explained
"The enterprise-level firewalls include heavy-duty network authentication, DMZ (demilitarized zone) functionality, and even intrusion prevention, antispam, and antivirus technology. As firewall technology improves, however, many of these features filter down to the smaller, cheaper firewall systems. For example, many SOHO and personal firewalls now offer Virtual Private Network support, Denial of Service protection, and stateful packet inspection (SPI). Now even Linux software firewall distros such as Astaro are including cutting-edge enterprise type functionality that only the big players had before."
(Submitted by Noel Sat Jan 15, 2005 )
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