nixos/doc: document the firewall port ranges options
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@ -23,10 +23,23 @@ networking.firewall.allowedTCPPorts = [ 80 443 ];
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</programlisting>
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Note that TCP port 22 (ssh) is opened automatically if the SSH daemon
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is enabled (<option>services.openssh.enable = true</option>). UDP
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is enabled (<option>services.openssh.enable = true</option>). UDP
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ports can be opened through
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<option>networking.firewall.allowedUDPPorts</option>. Also of
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interest is
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<option>networking.firewall.allowedUDPPorts</option>.</para>
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<para>To open ranges of TCP ports:
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<programlisting>
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networking.firewall.allowedTCPPortRanges = [
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{ from = 4000; to = 4007; }
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{ from = 8000; to = 8010; }
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];
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</programlisting>
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Similarly, UDP port ranges can be opened through
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<option>networking.firewall.allowedUDPPortRanges</option>.</para>
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<para>Also of interest is
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<programlisting>
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networking.firewall.allowPing = true;
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