Question

14

Automatically connect to a wireless network using CLI

rated 0 times [ 14] [ 0] / answers: 1 / hits: 43289 / 2 Years ago, sat, june 11, 2022, 12:23:46

I need my machine to connect to a wireless network automatically every time it starts

I'm running a headless server (10.04) and I use following commands to manually connect to the network

sudo iwconfig wlan0 essid "SSID_Name"

sudo iwconfig wlan0 key XXXXX

sudo iwconfig wlan0 key open

sudo iwconfig wlan0 mode Managed

sudo dhclient wlan0

I will appreciate if we can do that by modifying etc/network/interfaces file

Please note that my router is running wep, thanks in advance

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answered 2 Years ago mocipe · Accepted Answer

Please amend your /etc/network/interfaces file to:

auto lo

iface lo inet loopback



auto wlan0

iface wlan0 inet dhcp

wireless-ssid SSID_Name

wireless-key XXXXX

If you expect to ssh and ftp into the server, you need to know where it is. Do so with a static IP address:

auto lo

iface lo inet loopback



auto wlan0

iface wlan0 inet static

address 192.168.1.150

netmask 255.255.255.0

gateway 192.168.1.1

wireless-ssid SSID_Name

wireless-key XXXXX

dns-nameservers 8.8.8.8 192.168.1.1

Moreover, your settings imply that your network is encrypted with WEP which is quite insecure. I recommend you change the router to WPA2-AES:

auto lo

iface lo inet loopback



auto wlan0

iface wlan0 inet static

address 192.168.1.150

netmask 255.255.255.0

gateway 192.168.1.1

wpa-essid SSID_Name

wpa-psk XXXXX

dns-nameservers 8.8.8.8 192.168.1.1

Be sure to select an address outside the range used by the DHCP server in the router and, of course, substitute your details here.