How does Windows Firewall work?
Posted by admin on 21 June, 2010
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One Comment on “How does Windows Firewall work?”
Tech turm: Windows Firewall is a stateful host-firewall technology that inspects and filters all IP version 4 (IPv4) and IP version 6 (IPv6) network traffic. As a stateful firewall, Windows Firewall tracks the state of each network connection and determines whether the unsolicited incoming traffic should be allowed or dropped. Windows Firewall blocks incoming traffic unless the traffic is a response to a request by the host (in which case, it is solicited traffic) or it is specifically allowed (in which case, it has been added to the Windows Firewall exceptions list). Exceptions can be specified by program name, UDP or TCP port number, or system service name. Aside from a few Internet Control Message Protocol (ICMP) messages, Windows Firewall allows all outgoing traffic.
Human Language:
Firewalls have helped protect computers in large companies for years. Now, they’re a critical component of home networks, as well.
Firewall is a barrier to keep destructive forces away from your property. In fact, that’s why its called a firewall. Its job is similar to a physical firewall that keeps a fire from spreading from one area to the next.