Linux/Wifi: Difference between revisions
< Linux
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<pre> | <pre> | ||
ifconfig wlan0 up | ifconfig wlan0 up | ||
</pre> | |||
</blockquote> | |||
* show supported channels | |||
<blockquote> | |||
<pre> | |||
iwlist wlan0 channel | |||
</pre> | </pre> | ||
</blockquote> | </blockquote> | ||
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<pre> | <pre> | ||
iwlist wlan0 scan | grep ESSID | iwlist wlan0 scan | grep ESSID | ||
</pre> | |||
</blockquote> | |||
* scan and show channel usage | |||
<blockquote> | |||
<pre> | |||
sudo iwlist wlan0 scan | grep Frequency | sort | uniq -c | sort -n | |||
</pre> | </pre> | ||
</blockquote> | </blockquote> | ||
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<pre> | <pre> | ||
dhclient wlan0 | dhclient wlan0 | ||
</pre> | |||
</blockquote> | |||
* /etc/network/interfaces | |||
<blockquote> | |||
<pre> | |||
allow-hotplug wlan0 | |||
iface wlan0 inet dhcp | |||
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf | |||
</pre> | </pre> | ||
</blockquote> | </blockquote> | ||
Latest revision as of 19:09, 12 February 2018
Get infos
- list network hardware
lshw -class network
- show all network devices
ifconfig -a
- get wifi information
iwconfig
- bring interface up
ifconfig wlan0 up
- show supported channels
iwlist wlan0 channel
- scan for wifi networks
iwlist wlan0 scan | grep ESSID
- scan and show channel usage
sudo iwlist wlan0 scan | grep Frequency | sort | uniq -c | sort -n
configuration
- get country information
iw reg get
- set country information
iw reg set DE
- install WPA support
sudo apt install wpasupplicant
- /etc/wpa_supplicant/wpa_supplicant.conf
network={
ssid="xxxSSIDxxx"
psk="xxxPASSWORDxxx"
}
- bring interface up
ifconfig wlan0 up
- connect to WPA wifi
wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -D wext # add -B for background
- get IP
dhclient wlan0
- /etc/network/interfaces
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
Troubleshooting
- airplane mode?
rfkill list all