From the course: CompTIA A+ Core 2 (220-1102) Cert Prep
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Firewall configuration
From the course: CompTIA A+ Core 2 (220-1102) Cert Prep
Firewall configuration
- There's a lot of stuff out there on the internet that's just well plain evil. So we need to do something to protect our networks from the evil, that is the internet. And we also need to protect the internet from the evil that can sometimes be us. And we do that through something called a firewall. Now, a firewall is really more of a verb than a thing. To firewall means to block traffic based on whatever type of criteria you think is important. You could block out certain IP addresses. You could block certain incoming port numbers. You could block based on time of day. You can block based on keywords of websites. It really just depends on your firewall more than anything else. However, the most obvious place to put a firewall is right at the edge of your network. And most of the time, that means putting firewall features into a SOHO router like this one. Now, you're going to see a lot of differences in terms of the…
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Introduction to TCP/IP14m 10s
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Network IDs and subnet masks4m 34s
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Special IP addresses9m 14s
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Network address translation (NAT)7m 11s
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Dynamic IP addressing9m 39s
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Working with connections9m 2s
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Understanding DNS10m 56s
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Working with DNS7m 3s
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Windows naming6m 1s
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Working with workgroups7m 26s
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Working with active directory13m 38s
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Windows sharing with macOS and Linux7m 6s
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The net command4m 15s
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Routers11m 24s
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Basic router configuration11m 49s
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Firewall configuration10m 38s
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Windows firewall7m 44s
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Port forwarding7m 12s
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Advanced router configuration6m 6s
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Virtual LANs (VLANs)8m 4s
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