Configuring WLAN on a linux host there are 2 ways to configure a wireless access on a wireless host.

First way is one can use an application like:

• wicd
• NM (network manager)

which generates a working wpa_supplicant.conf file for your machine/laptop. Sometimes with hashes somtimes without. Generally speaking the configuring overhead is out of the scope and one barely to no possibility to control how the working wpa_supplicant configuration is structured and where data is stored.

Second way is to generate a wpa_supplicant.conf file by yourself, which could look like this:

network={
    ssid="example"
    key_mgmt=WPA-EAP
    eap=PEAP
    identity="user@example.com"
    password="MySecretPassword"
    ca_cert="/etc/cert/ca.pem"
    phase1="peaplabel=1"
    phase2="auth=MSCHAPV2"
}

Instead of setting password in cleartext it is possible to generate a hash and use the keyword hash in the password line. This kind of hash is also called NT-hash (sometimes). To generate a working hash use openssl/libressl library with following command:

The resulting wpa_supplicant.conf configuration part:

...
    network={
            ssid="example"
            key_mgmt=WPA-EAP
            eap=PEAP
            identity="user@example.com"
            password=hash:f38de32ad5224f05be73c6f542266937
            ca_cert="/etc/cert/ca.pem"
            phase1="peaplabel=1"
            phase2="auth=MSCHAPV2"
    }
...

Finally, restrict file permissions and adjust the system file owner:

Finished.