Networking Essentials / Seeing the network
Lesson 29 of 30
Network troubleshooting
Work up the layers: is it plugged in, do I have an IP, can I ping the gateway, can I ping 1.1.1.1, does DNS work? The first step that fails is where the problem is.
Key points
- Check the link, then IP, then gateway
- Ping an IP to test without DNS
- Then test names to check DNS
ip a
ping -c 2 192.168.1.1
ping -c 2 1.1.1.1
ping -c 2 example.comQuiz · +10 XP
You can ping 1.1.1.1 but not example.com. What's likely broken?
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