pyrox.dev
1<chapter xmlns="http://docbook.org/ns/docbook"
2 xmlns:xlink="http://www.w3.org/1999/xlink"
3 xmlns:xi="http://www.w3.org/2001/XInclude"
4 version="5.0"
5 xml:id="sec-hidepid">
6
7 <title>Hiding process information</title>
8
9 <para>
10 Setting
11<programlisting>
12<xref linkend="opt-security.hideProcessInformation"/> = true;
13</programlisting>
14 ensures that access to process information is restricted to the
15 owning user. This implies, among other things, that command-line
16 arguments remain private. Unless your deployment relies on unprivileged
17 users being able to inspect the process information of other users, this
18 option should be safe to enable.
19 </para>
20
21 <para>
22 Members of the <literal>proc</literal> group are exempt from process
23 information hiding.
24 </para>
25
26 <para>
27 To allow a service <replaceable>foo</replaceable> to run without process information hiding, set
28<programlisting>
29<link linkend="opt-systemd.services._name_.serviceConfig">systemd.services.<replaceable>foo</replaceable>.serviceConfig</link>.SupplementaryGroups = [ "proc" ];
30</programlisting>
31 </para>
32
33</chapter>