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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 = {
psk = "abcdefgh";
};
"free.wifi" = {};
}
</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 the <command>wpa_passphrase</command> tool might be
useful to generate the <literal>wpa_supplicant.conf</literal>.
<screen>
# 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>
# systemctl restart wpa_supplicant.service</screen>
</para>
</section>
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