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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-ssh">
<title>Secure Shell Access</title>
<para>Secure shell (SSH) access to your machine can be enabled by
setting:
<programlisting>
services.openssh.enable = true;
</programlisting>
By default, root logins using a password are disallowed. They can be
disabled entirely by setting
<literal>services.openssh.permitRootLogin</literal> to
<literal>"no"</literal>.</para>
<para>You can declaratively specify authorised RSA/DSA public keys for
a user as follows:
<!-- FIXME: this might not work if the user is unmanaged. -->
<programlisting>
users.extraUsers.alice.openssh.authorizedKeys.keys =
[ "ssh-dss AAAAB3NzaC1kc3MAAACBAPIkGWVEt4..." ];
</programlisting>
</para>
</section>
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