Wifi: Difference between revisions
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== |
== Commands == |
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* <tt>[[Linux Commands#iwconfig|iwconfig]]</tt>, get information or configure a wireless network interface |
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<source lang="bash"> |
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sudo iwconfig # Get information |
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sudo iwconfig wlan0 # Configure |
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</source> |
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* <tt>[[Linux Commands#iwlist|iwlist]]</tt>, get more detailed wireless information from a wireless interface |
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<source lang="bash"> |
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sudo iwlist scan |
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sudo iw dev wlan0 scan |
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</source> |
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* <tt>[[Linux Commands#rfkill|rfkill]]</tt>, show state of RF SW/HW kill switch (WiFi / BT / ...) |
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<source lang="bash">rfkill list all</source> |
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== Troubleshoot wifi == |
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<source lang=bash> |
<source lang=bash> |
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# Check device |
# Check device |
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# Check status interfaces |
# Check status interfaces |
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ifconfig |
ifconfig |
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</source> |
</source> |
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Revision as of 16:36, 10 June 2019
Commands
- iwconfig, get information or configure a wireless network interface
sudo iwconfig # Get information
sudo iwconfig wlan0 # Configure
- iwlist, get more detailed wireless information from a wireless interface
sudo iwlist scan
sudo iw dev wlan0 scan
- rfkill, show state of RF SW/HW kill switch (WiFi / BT / ...)
rfkill list all
Troubleshoot wifi
# Check device
lsusb # if wifi usb device
lspci # if wifi pci device
# Check if device has an interface
iwconfig
# Check status interfaces
ifconfig
Wifi is either controlled by NetworkManager or via the command line.
- NetworkManager
- Command file
- See file /etc/network/interfaces. See man page
man interfaces - For WPA, see file /etc/wpa_supplicant/wpa_supplicant.conf.
- Miscellaneous
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- See Common Issues