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28 lines
1.1 KiB
28 lines
1.1 KiB
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="sec-hidepid">
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<title>Hiding process information</title>
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<para>
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Setting
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<programlisting>
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<xref linkend="opt-security.hideProcessInformation"/> = true;
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</programlisting>
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ensures that access to process information is restricted to the owning user.
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This implies, among other things, that command-line arguments remain private.
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Unless your deployment relies on unprivileged users being able to inspect the
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process information of other users, this option should be safe to enable.
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</para>
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<para>
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Members of the <literal>proc</literal> group are exempt from process
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information hiding.
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</para>
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<para>
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To allow a service <replaceable>foo</replaceable> to run without process
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information hiding, set
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<programlisting>
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<link linkend="opt-systemd.services._name_.serviceConfig">systemd.services.<replaceable>foo</replaceable>.serviceConfig</link>.SupplementaryGroups = [ "proc" ];
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</programlisting>
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</para>
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</chapter>
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