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man: document that ProtectHostname= disables hostname change notifications

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Lennart Poettering 2019-03-07 14:38:07 +01:00
parent b459700b98
commit 8df87b4383
1 changed files with 7 additions and 3 deletions
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man/systemd.exec.xml
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@ -1135,9 +1135,13 @@ BindReadOnlyPaths=/var/lib/systemd</programlisting>
<listitem><para>Takes a boolean argument. When set, sets up a new UTS namespace for the executed
processes. In addition, changing hostname or domainname is prevented. Defaults to off.</para>
<para>Note that the implementation of this setting might be impossible (for example if UTS namespaces are not
available), and the unit should be written in a way that does not solely rely on this setting for
security.</para></listitem>
<para>Note that the implementation of this setting might be impossible (for example if UTS namespaces
are not available), and the unit should be written in a way that does not solely rely on this setting
for security.</para>
<para>Note that when this option is enabled for a service hostname changes no longer propagate from
the system into the service, it is hence not suitable for services that need to take notice of system
hostname changes dynamically.</para></listitem>
</varlistentry>
<varlistentry>