Networking · 15 · 3 min read
Wi-Fi
A network over radio waves, defined by the IEEE 802.11 standards.
Bands
| Band | Good at | Weak at |
|---|---|---|
| 2.4 GHz | Range, walls | Speed, crowded |
| 5 GHz | Speed | Range |
| 6 GHz | Speed, empty channels | Range (Wi-Fi 6E / 7) |
Security
- WEP — broken, cracked in minutes.
- WPA2 — still common, fine with a long password.
- WPA3 — current standard, resists password guessing.
- Turn off WPS: its PIN can be brute-forced.