66 lines
842 B
Markdown
66 lines
842 B
Markdown
---
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title: "wireless"
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tags: [ "networking" ]
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---
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Check wifi's working
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```sh
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lspci -k
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```
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Or for usb wifi:
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```sh
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dmesg | grep usbcore
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```
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...and hopefully it'll say the new interface is registered.
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Check if a wifi interface has been created
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```sh
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ip link
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```
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...or
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```sh
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iw dev
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```
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Assuming it's wlan0, bring it up with
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```sh
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ip link set wlan0 up
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```
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Error messages probably means your wireless chipset requires a firmware to function. In this case, check the kernel messages for firmware being loaded
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```sh
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dmesg | grep firmware
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```
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# Utilities
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- `iw` doesn't do wpa/wpa2.
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- `iwd` does everything except WEXT encryption.
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- `wpa_supplicant` does everything.
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# Connecting
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Get the link status:
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```sh
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iw dev wlan0 link
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```
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Scan for available points:
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```sh
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iw dev wlan0 scan
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```
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The connecting commands do not cover wpa2.
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