path: root/man/systemd-journal-upload.service.xml

<?xml version='1.0'?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
<!ENTITY % entities SYSTEM "custom-entities.ent" >
%entities;
]>
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->

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

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

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

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

  <refsynopsisdiv>
    <para><filename>systemd-journal-upload.service</filename></para>
    <cmdsynopsis>
      <command>/usr/lib/systemd/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>
    
    <para><command>systemd-journal-upload</command> transfers the raw content of journal file and
    uses HTTP as a transport protocol.</para> 
    
    <para><filename>systemd-journal-upload.service</filename> is a system service that uses
    <command>systemd-journal-upload</command> to upload journal entries to a server. It uses the
    configuration in
    <citerefentry><refentrytitle>journal-upload.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
    At least the <varname>URL=</varname> option must be specified.</para>
  </refsect1>

  <refsect1>
    <title>Options</title>

    <variablelist>
      <varlistentry>
        <term><option>-u</option></term>
        <term><option>--url=<optional>https://</optional><replaceable>URL</replaceable>[:<replaceable>PORT</replaceable>]</option></term>
        <term><option>--url=<optional>http://</optional><replaceable>URL</replaceable>[:<replaceable>PORT</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.
        The port number may be specified after a colon (<literal>:</literal>),
        otherwise <constant>19532</constant> will be used by default.
        </para>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--namespace=<replaceable>NAMESPACE</replaceable></option></term>

        <listitem><para>Takes a journal namespace identifier string as argument. Upload
        entries from the specified journal namespace
        <replaceable>NAMESPACE</replaceable> instead of the default namespace. This has the same meaning as
        <option>--namespace=</option> option for
        <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
        </para>

        <xi:include href="version-info.xml" xpointer="v254"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

        <xi:include href="version-info.xml" xpointer="v239"/></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>

          <xi:include href="version-info.xml" xpointer="v239"/></listitem>
      </varlistentry>

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

        <listitem><para>
          Takes a path to a SSL key file in PEM format, or <option>-</option>.
          If <option>-</option> is set, then client certificate authentication checking
          will be disabled.
          Defaults to <filename>&CERTIFICATE_ROOT;/private/journal-upload.pem</filename>.
        </para>

          <xi:include href="version-info.xml" xpointer="v239"/></listitem>
      </varlistentry>

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

        <listitem><para>
          Takes a path to a SSL certificate file in PEM format, or <option>-</option>.
          If <option>-</option> is set, then client certificate authentication checking
          will be disabled.
          Defaults to <filename>&CERTIFICATE_ROOT;/certs/journal-upload.pem</filename>.
        </para>

          <xi:include href="version-info.xml" xpointer="v239"/></listitem>
      </varlistentry>

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

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

          <xi:include href="version-info.xml" xpointer="v239"/></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>. Note, 2048 bits of key length
      is minimally recommended to use for security reasons:</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:2048 -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:2048 -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>,
      and <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>journal-upload.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd-journal-remote.service</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>