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44 lines
1.5 KiB
XML
44 lines
1.5 KiB
XML
<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="sec-ipv4">
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<title>IPv4 Configuration</title>
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<para>
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By default, NixOS uses DHCP (specifically, <command>dhcpcd</command>) to
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automatically configure network interfaces. However, you can configure an
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interface manually as follows:
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<programlisting>
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<link linkend="opt-networking.interfaces._name__.ipv4.addresses">networking.interfaces.eth0.ipv4.addresses</link> = [ {
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address = "192.168.1.2";
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prefixLength = 24;
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} ];
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</programlisting>
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Typically you’ll also want to set a default gateway and set of name
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servers:
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<programlisting>
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<xref linkend="opt-networking.defaultGateway"/> = "192.168.1.1";
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<xref linkend="opt-networking.nameservers"/> = [ "8.8.8.8" ];
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</programlisting>
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</para>
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<note>
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<para>
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Statically configured interfaces are set up by the systemd service
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<replaceable>interface-name</replaceable><literal>-cfg.service</literal>.
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The default gateway and name server configuration is performed by
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<literal>network-setup.service</literal>.
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</para>
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</note>
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<para>
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The host name is set using <xref linkend="opt-networking.hostName"/>:
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<programlisting>
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<xref linkend="opt-networking.hostName"/> = "cartman";
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</programlisting>
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The default host name is <literal>nixos</literal>. Set it to the empty string
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(<literal>""</literal>) to allow the DHCP server to provide the host name.
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</para>
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</section>
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