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6a7e63ef | 1 | <?xml version='1.0'?> <!--*-nxml-*--> |
6a7e63ef | 2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" |
12b42c76 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
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4 | |
5 | <!-- | |
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6 | SPDX-License-Identifier: LGPL-2.1+ |
7 | ||
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8 | This file is part of systemd. |
9 | ||
10 | Copyright 2010 Lennart Poettering | |
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11 | --> |
12 | ||
13 | <refentry id="hostname"> | |
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14 | <refentryinfo> |
15 | <title>hostname</title> | |
16 | <productname>systemd</productname> | |
17 | ||
18 | <authorgroup> | |
19 | <author> | |
20 | <contrib>Developer</contrib> | |
21 | <firstname>Lennart</firstname> | |
22 | <surname>Poettering</surname> | |
23 | <email>lennart@poettering.net</email> | |
24 | </author> | |
25 | </authorgroup> | |
26 | </refentryinfo> | |
27 | ||
28 | <refmeta> | |
29 | <refentrytitle>hostname</refentrytitle> | |
30 | <manvolnum>5</manvolnum> | |
31 | </refmeta> | |
32 | ||
33 | <refnamediv> | |
34 | <refname>hostname</refname> | |
35 | <refpurpose>Local hostname configuration file</refpurpose> | |
36 | </refnamediv> | |
37 | ||
38 | <refsynopsisdiv> | |
39 | <para><filename>/etc/hostname</filename></para> | |
40 | </refsynopsisdiv> | |
41 | ||
42 | <refsect1> | |
43 | <title>Description</title> | |
44 | ||
45 | <para>The <filename>/etc/hostname</filename> file configures the | |
46 | name of the local system that is set during boot using the | |
47 | <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry> | |
48 | system call. It should contain a single newline-terminated | |
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49 | hostname string. Comments (lines starting with a `#') are ignored. |
50 | The hostname may be a free-form string up to 64 characters in length; | |
51 | however, it is recommended that it consists only of 7-bit ASCII lower-case | |
52 | characters and no spaces or dots, and limits itself to the format allowed | |
53 | for DNS domain name labels, even though this is not a strict | |
54 | requirement.</para> | |
798d3a52 | 55 | |
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56 | <para>You may use |
57 | <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
58 | to change the value of this file during runtime from the command | |
59 | line. Use | |
60 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
61 | to initialize it on mounted (but not booted) system images.</para> | |
62 | </refsect1> | |
63 | ||
64 | <refsect1> | |
65 | <title>History</title> | |
66 | ||
67 | <para>The simple configuration file format of | |
68 | <filename>/etc/hostname</filename> originates from Debian | |
69 | GNU/Linux.</para> | |
70 | </refsect1> | |
71 | ||
72 | <refsect1> | |
73 | <title>See Also</title> | |
74 | <para> | |
75 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
76 | <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>, | |
77 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
78 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>7</manvolnum></citerefentry>, | |
79 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
80 | <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
81 | <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
82 | <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
83 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
84 | </para> | |
85 | </refsect1> | |
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86 | |
87 | </refentry> |