nixos/doc/manual/installation/installing-behind-a-proxy.xml


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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-installing-behind-proxy">
 <title>Installing behind a proxy</title>

<para>
  To install NixOS behind a proxy, do the following before running
  <literal>nixos-install</literal>.
</para>
<orderedlist numeration="arabic">
  <listitem>
    <para>
      Update proxy configuration in
      <literal>/mnt/etc/nixos/configuration.nix</literal> to keep the
      internet accessible after reboot.
    </para>
    <programlisting>
networking.proxy.default = &quot;http://user:password@proxy:port/&quot;;
networking.proxy.noProxy = &quot;127.0.0.1,localhost,internal.domain&quot;;
</programlisting>
  </listitem>
  <listitem>
    <para>
      Setup the proxy environment variables in the shell where you are
      running <literal>nixos-install</literal>.
    </para>
    <programlisting>
# proxy_url=&quot;http://user:password@proxy:port/&quot;
# export http_proxy=&quot;$proxy_url&quot;
# export HTTP_PROXY=&quot;$proxy_url&quot;
# export https_proxy=&quot;$proxy_url&quot;
# export HTTPS_PROXY=&quot;$proxy_url&quot;
</programlisting>
  </listitem>
</orderedlist>

<note>
<para>
  If you are switching networks with different proxy configurations, use the
  <literal>nesting.clone</literal> option in
  <literal>configuration.nix</literal> to switch proxies at runtime.
  Refer to <xref linkend="ch-options" /> for more information.
</para>
</note>
</section>