2 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
5 SPDX-License-Identifier: LGPL-2.1-or-later
10 <para id="singular">This option is only available for system services, or for services running in per-user
11 instances of the service manager in which case <varname>PrivateUsers=</varname> is implicitly enabled
12 (requires unprivileged user namespaces support to be enabled in the kernel via the
13 <literal>kernel.unprivileged_userns_clone=</literal> sysctl).</para>
15 <para id="plural">These options are only available for system services, or for services running in per-user
16 instances of the service manager in which case <varname>PrivateUsers=</varname> is implicitly enabled
17 (requires unprivileged user namespaces support to be enabled in the kernel via the
18 <literal>kernel.unprivileged_userns_clone=</literal> sysctl).</para>