Networking Essentials / IP addressing
Lesson 14 of 30
Loopback and localhost
127.0.0.1 (and ::1 in IPv6) always means 'this machine'. The name localhost points to it. Services bound to it can't be reached from other computers.
Key points
- 127.0.0.1 = this computer
- Great for testing
- Binding to 127.0.0.1 keeps a service private
Quiz · +10 XP
What does 127.0.0.1 refer to?
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