doc: clarify at which point user/group name resolution needs to work (#8884)

[thirdparty/systemd.git] / man / systemd-journal-upload.xml

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<!--
  SPDX-License-Identifier: LGPL-2.1+

  This file is part of systemd.

  Copyright 2014 Zbigniew Jędrzejewski-Szmek
-->

<refentry id="systemd-journal-upload" conditional='HAVE_MICROHTTPD'
          xmlns:xi="http://www.w3.org/2001/XInclude">

  <refentryinfo>
    <title>systemd-journal-upload</title>
    <productname>systemd</productname>

    <authorgroup>
      <author>
        <contrib>Developer</contrib>
        <firstname>Zbigniew</firstname>
        <surname>Jędrzejewski-Szmek</surname>
        <email>zbyszek@in.waw.pl</email>
      </author>
    </authorgroup>
  </refentryinfo>

  <refmeta>
    <refentrytitle>systemd-journal-upload</refentrytitle>
    <manvolnum>8</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>systemd-journal-upload</refname>
    <refpurpose>Send journal messages over the network</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis>
      <command>systemd-journal-upload</command>
      <arg choice="opt" rep="repeat">OPTIONS</arg>
      <arg choice="opt" rep="norepeat">-u/--url=<replaceable>URL</replaceable></arg>
      <arg choice="opt" rep="repeat">SOURCES</arg>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para><command>systemd-journal-upload</command> will upload journal entries to the URL specified
    with <option>--url=</option>. This program reads journal entries from one or more journal files,
    similarly to
    <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
    Unless limited by one of the options specified below, all journal entries accessible to the user
    the program is running as will be uploaded, and then the program will wait and send new entries
    as they become available.</para>
  </refsect1>

  <refsect1>
    <title>Options</title>

    <variablelist>
      <varlistentry>
        <term><option>-u</option></term>
        <term><option>--url=<optional>https://</optional><replaceable>URL</replaceable></option></term>
        <term><option>--url=<optional>http://</optional><replaceable>URL</replaceable></option></term>

        <listitem><para>Upload to the specified
        address. <replaceable>URL</replaceable> may specify either
        just the hostname or both the protocol and
        hostname. <constant>https</constant> is the default.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--system</option></term>
        <term><option>--user</option></term>

        <listitem><para>Limit uploaded entries to entries from system
        services and the kernel, or to entries from services of
        current user. This has the same meaning as
        <option>--system</option> and <option>--user</option> options
        for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>. If
        neither is specified, all accessible entries are uploaded.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>-m</option></term>
        <term><option>--merge</option></term>

        <listitem><para>Upload entries interleaved from all available
        journals, including other machines. This has the same meaning
        as <option>--merge</option> option for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>-D</option></term>
        <term><option>--directory=<replaceable>DIR</replaceable></option></term>

        <listitem><para>Takes a directory path as argument. Upload
        entries from the specified journal directory
        <replaceable>DIR</replaceable> instead of the default runtime
        and system journal paths. This has the same meaning as
        <option>--directory=</option> option for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--file=<replaceable>GLOB</replaceable></option></term>

        <listitem><para>Takes a file glob as an argument. Upload
        entries from the specified journal files matching
        <replaceable>GLOB</replaceable> instead of the default runtime
        and system journal paths. May be specified multiple times, in
        which case files will be suitably interleaved. This has the same meaning as
        <option>--file=</option> option for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--cursor=</option></term>

        <listitem><para>Upload entries from the location in the
        journal specified by the passed cursor. This has the same
        meaning as <option>--cursor=</option> option for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--after-cursor=</option></term>

        <listitem><para>Upload entries from the location in the
        journal <emphasis>after</emphasis> the location specified by
        the this cursor.  This has the same meaning as
        <option>--after-cursor=</option> option for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--save-state</option><optional>=<replaceable>PATH</replaceable></optional></term>

        <listitem><para>Upload entries from the location in the
        journal <emphasis>after</emphasis> the location specified by
        the cursor saved in file at <replaceable>PATH</replaceable>
        (<filename>/var/lib/systemd/journal-upload/state</filename> by default).
        After an entry is successfully uploaded, update this file
        with the cursor of that entry.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--follow</option><optional>=<replaceable>BOOL</replaceable></optional></term>

        <listitem><para>
          If set to yes, then <command>systemd-journal-upload</command> waits for input.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--key=</option></term>

        <listitem><para>
          Takes a path to a SSL key file in PEM format.
          Defaults to <filename>&CERTIFICATE_ROOT;/private/journal-upload.pem</filename>.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--cert=</option></term>

        <listitem><para>
          Takes a path to a SSL certificate file in PEM format.
          Defaults to <filename>&CERTIFICATE_ROOT;/certs/journal-upload.pem</filename>.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--trust=</option></term>

        <listitem><para>
          Takes a path to a SSL CA certificate file in PEM format,
          or <option>all</option>. If <option>all</option> is set,
          then certificate checking will be disabled.
          Defaults to <filename>&CERTIFICATE_ROOT;/ca/trusted.pem</filename>.
        </para></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; otherwise, a non-zero
    failure code is returned.</para>
  </refsect1>

  <refsect1>
    <title>Examples</title>
    <example>
      <title>Setting up certificates for authentication</title>

      <para>Certificates signed by a trusted authority are used to
      verify that the server to which messages are uploaded is
      legitimate, and vice versa, that the client is trusted.</para>

      <para>A suitable set of certificates can be generated with
      <command>openssl</command>:</para>

      <programlisting>openssl req -newkey rsa:2048 -days 3650 -x509 -nodes \
      -out ca.pem -keyout ca.key -subj '/CN=Certificate authority/'

cat &gt;ca.conf &lt;&lt;EOF
[ ca ]
default_ca = this

[ this ]
new_certs_dir = .
certificate = ca.pem
database = ./index
private_key = ca.key
serial = ./serial
default_days = 3650
default_md = default
policy = policy_anything

[ policy_anything ]
countryName             = optional
stateOrProvinceName     = optional
localityName            = optional
organizationName        = optional
organizationalUnitName  = optional
commonName              = supplied
emailAddress            = optional
EOF

touch index
echo 0001 &gt;serial

SERVER=server
CLIENT=client

openssl req -newkey rsa:1024 -nodes -out $SERVER.csr -keyout $SERVER.key -subj "/CN=$SERVER/"
openssl ca -batch -config ca.conf -notext -in $SERVER.csr -out $SERVER.pem

openssl req -newkey rsa:1024 -nodes -out $CLIENT.csr -keyout $CLIENT.key -subj "/CN=$CLIENT/"
openssl ca -batch -config ca.conf -notext -in $CLIENT.csr -out $CLIENT.pem
</programlisting>

      <para>Generated files <filename>ca.pem</filename>,
      <filename>server.pem</filename>, and
      <filename>server.key</filename> should be installed on server,
      and <filename>ca.pem</filename>,
      <filename>client.pem</filename>, and
      <filename>client.key</filename> on the client. The location of
      those files can be specified using
      <varname>TrustedCertificateFile=</varname>,
      <varname>ServerCertificateFile=</varname>,
      <varname>ServerKeyFile=</varname>, in
      <filename>/etc/systemd/journal-remote.conf</filename> and
      <filename>/etc/systemd/journal-upload.conf</filename>,
      respectively. The default locations can be queried by using
      <command>systemd-journal-remote --help</command> and
      <command>systemd-journal-upload --help</command>.</para>
    </example>
  </refsect1>

  <refsect1>
    <title>See Also</title>
    <para>
      <citerefentry><refentrytitle>systemd-journal-remote</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd-journal-gatewayd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
    </para>
  </refsect1>
</refentry>