wpa_supplicant

DEBIAN SQUEEZE 6.XX WPA_SUPPLICANT SET UP
FORGET NETWORK MANAGER OR WICD.
THIS TYPE OF SET UP IS HELPFUL WHEN USING VARIOUS WM's SUCH AS SCROTWM, DWM, AWESOME, etc

# reference
http://crunchbanglinux.org/forums/topic/16624/howto-connect-and-roam-wifi-networks-with-wpasupplicant/

# will prove helpful with roaming
sudo apt-get install wpagui

# set wpa_supplicant to utilize roam file

# in /etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
    wpa-roam /etc/wpa_supplicant/wpa-roam.conf

# create the /etc/wpa_supplicant/wpa-roam.conf file, and add some options and out networks:

update_config=1
ctrl_interface=DIR=/var/run/wpa_supplicant
GROUP=netdev

iface default inet dhcp
iface work inet dhcp
iface School inet dhcp
#iface home inet dhcp
#iface xyz inet dhcp

# This one is for connecting to any unsecured network your machine comes into contect with, just comment out if you don't like this:

network={
        key_mgmt=NONE
}

# The actual roaming settings go here:

network={
        ssid="YOUR SSID AT HOME"
        psk="PASSWORD"
        id_str="home"
}

network={
        ssid="YOUR SSID AT WORK"
        psk="PASSOWRD"
        id_str="school"
}


# when confident everything is working as you want it
sudo update-rc.d network-manager remove

# not ready for that yet?  other options
sudo update-rc.d network-manager disable
sudo update-rc.d network-manager defaults

# Oh, one more thing to do? -> remove nm-applet from autostart