Network Security Technologies

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

Learn about network security technologies, including Windows Firewall.

Network Security Technologies

Windows Server 2003 provides two network security technologies: Windows Firewall, which provides host-based inspection and filtering of Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6) traffic, and Ipsec, which provides inspection, filtering, encryption, and authentication of IP traffic.

Windows Firewall

Windows Firewall provides host-firewall protection on computers running Windows Server 2003 with Service Pack 1 (SP1) and Windows XP with Service Pack 2 (SP2). As a host firewall, Windows Firewall runs on each of your servers and clients, providing protection from network attacks that pass through your perimeter network or originate inside your organization, such as Trojan horse attacks, worms, or any other type of malicious program spread through unsolicited incoming traffic.