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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd-ssh-issue"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>systemd-ssh-issue</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-ssh-issue</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-ssh-issue</refname>
<refpurpose>Generator for SSH login prompt drop-ins</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>/usr/lib/systemd/systemd-ssh-issue <option>--make-vsock</option></command>
<command>/usr/lib/systemd/systemd-ssh-issue <option>--rm-vsock</option></command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>systemd-ssh-issue</command> is a small tool that generates a
<filename>/run/issue.d/50-ssh-vsock.issue</filename> drop-in file in case <constant>AF_VSOCK</constant>
support is available in the kernel and the VM environment. The file contains brief information about how
to contact the local system via SSH-over-<constant>AF_VSOCK</constant>, in particular it reports the
system's <constant>AF_VSOCK</constant> CID. The file is typically read and displayed by <citerefentry
project='man-pages'><refentrytitle>agetty</refentrytitle><manvolnum>8</manvolnum></citerefentry> on
console or serial login prompts.</para>
<para>This tool is automatically used by
<citerefentry><refentrytitle>systemd-ssh-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
in the <constant>AF_VSOCK</constant> socket units it generates.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>--make-vsock</option></term>
<listitem><para>Generates the issue file. This command has no effect if called on systems lacking
<constant>AF_VSOCK</constant> support.</para>
<xi:include href="version-info.xml" xpointer="v258"/></listitem>
</varlistentry>
<varlistentry>
<term><option>--rm-vsock</option></term>
<listitem><para>Removes the issue file if it exists.</para>
<xi:include href="version-info.xml" xpointer="v258"/></listitem>
</varlistentry>
<varlistentry>
<term><option>--issue-path=</option></term>
<listitem><para>Changes the path to the issue file to write to/remove. If not specified, defaults to
<filename>/run/issue.d/50-ssh-vsock.issue</filename>. If specified as empty string or
<literal>-</literal> writes the issue file contents to standard output.</para>
<xi:include href="version-info.xml" xpointer="v258"/></listitem>
</varlistentry>
<xi:include href="standard-options.xml" xpointer="help"/>
<xi:include href="standard-options.xml" xpointer="version"/>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success, 0 is returned, a non-zero failure code
otherwise.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para><simplelist type="inline">
<member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
<member><citerefentry><refentrytitle>systemd-ssh-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
<member><citerefentry project="man-pages"><refentrytitle>vsock</refentrytitle><manvolnum>7</manvolnum></citerefentry></member>
<member><citerefentry project="man-pages"><refentrytitle>ssh</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
<member><citerefentry project="man-pages"><refentrytitle>sshd</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
<member><citerefentry project='man-pages'><refentrytitle>agetty</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
</simplelist></para>
</refsect1>
</refentry>
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