debian8 配置 WIFI

/etc/network/interfaces

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# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

auto lo
iface lo inet loopback

#iface eth0 inet manual
allow-hotplug eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameserver 192.168.1.1
#iface eth0 inet dhcp

# need auto line unless wlan will not start until lan up
auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

/etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
  ssid="xxxx"
  #psk="yyyy"
  psk=zzzz
  key_mgmt=WPA-PSK
}

上面的ssid,psk是加密的。通过wpa_passphrase生成

# wpa_passphrase myssid password
network={
ssid="myssid"
#psk="password"
psk=e53bb7df43156b8a6ad5d3ea5bb4078fada2531e2d5d5208c3bc1a17c3278220
}