Like all operating systems, Windows comes with a built-in software firewall. Unlike the firewall on your router, this firewall only protects a single system. It’s important for techs—and the users they support—to understand how to use the Windows Firewall.
- Any network is going to have a router … with some type of firewall features in it. … It's important and it's a great way … to protect our networks from the evil of the internet. … However, there's another place to firewall … and that is on the individual systems … or what we call a host firewall. … A network firewall like this … or sometimes you'll hear the word edge firewall, … this is great because it can watch traffic … based on port numbers or IP address. … It can filter on MAC addresses, … it can do all kinds of cool stuff. … But a firewall that sits on individual computers … has some real power. … In particular, a firewall that's sitting on … an individual computer can actually see … what processes are trying to send data out … or receive data in from the internet … and we can actually filter now … based on actual process ID or just the name … of the program or the application itself. … These are absolutely critical … and we use both a network-based firewall … and a host-based firewall. …
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The eight-part CompTIA A+ (220-1002): Cert Prep series was designed to help IT professionals prepare to take and pass the Core 2 (220-1002) exam, one of two required exams for the CompTIA A+ certification. In this installment of the series, CompTIA expert Mike Meyers helps you get up to speed with the essential networking concepts covered on the exam. Mike covers how to troubleshoot hardware failures, work with connections, and use the Windows Firewall. Plus, he goes over Active Directory, port forwarding, and wireless encryption.
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