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<section xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xi="http://www.w3.org/2001/XInclude"
version="5.0"
xml:id="sec-wireless">
<title>Wireless Networks</title>
<para>
For a desktop installation using NetworkManager (e.g., GNOME), you just have
to make sure the user is in the <code>networkmanager</code> group and you can
skip the rest of this section on wireless networks.
</para>
<para>
NixOS will start wpa_supplicant for you if you enable this setting:
<programlisting>
<xref linkend="opt-networking.wireless.enable"/> = true;
</programlisting>
NixOS lets you specify networks for wpa_supplicant declaratively:
<programlisting>
<xref linkend="opt-networking.wireless.networks"/> = {
echelon = { # SSID with no spaces or special characters
psk = "abcdefgh";
};
"echelon's AP" = { # SSID with spaces and/or special characters
psk = "ijklmnop";
};
echelon = { # Hidden SSID
hidden = true;
psk = "qrstuvwx";
};
free.wifi = {}; # Public wireless network
};
</programlisting>
Be aware that keys will be written to the nix store in plaintext! When no
networks are set, it will default to using a configuration file at
<literal>/etc/wpa_supplicant.conf</literal>. You should edit this file
yourself to define wireless networks, WPA keys and so on (see <citerefentry>
<refentrytitle>wpa_supplicant.conf</refentrytitle>
<manvolnum>5</manvolnum> </citerefentry>).
</para>
<para>
If you are using WPA2 you can generate pskRaw key using
<command>wpa_passphrase</command>:
<screen>
<prompt>$ </prompt>wpa_passphrase ESSID PSK
network={
ssid="echelon"
#psk="abcdefgh"
psk=dca6d6ed41f4ab5a984c9f55f6f66d4efdc720ebf66959810f4329bb391c5435
}
</screen>
<programlisting>
<xref linkend="opt-networking.wireless.networks"/> = {
echelon = {
pskRaw = "dca6d6ed41f4ab5a984c9f55f6f66d4efdc720ebf66959810f4329bb391c5435";
};
}
</programlisting>
or you can use it to directly generate the
<literal>wpa_supplicant.conf</literal>:
<screen>
<prompt># </prompt>wpa_passphrase ESSID PSK > /etc/wpa_supplicant.conf</screen>
After you have edited the <literal>wpa_supplicant.conf</literal>, you need to
restart the wpa_supplicant service.
<screen>
<prompt># </prompt>systemctl restart wpa_supplicant.service</screen>
</para>
</section>
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