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Linux & the Command Line / Servers and scripts

Lesson 24 of 30

Networking commands

ip a shows your addresses, ping tests reachability, ss -tulpn shows listening ports, and curl fetches URLs.

Key points

  • ip a
  • ss -tulpn shows open ports
  • curl -I shows HTTP headers
ip a
ping -c 3 1.1.1.1
sudo ss -tulpn
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Quiz · +10 XP

Which command shows which ports are listening on your machine?

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