Tools and troubleshooting

5 lessons in the Networking course.

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• Using Ping and TracerouteTest reachability and path with ping and traceroute tools.
• Checking Your IP and Network SettingsInspect local addresses, gateways, and DNS settings on Windows and Linux.
• Firewalls and NAT (Intro)Get a beginner view of firewalls and how NAT shares a public address.
• Wi-Fi vs Ethernet BasicsCompare wireless and wired links for speed, reliability, and interference.
• Troubleshooting ChecklistWork through a practical order of checks when the network misbehaves.