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6a7e63ef | 1 | <?xml version='1.0'?> <!--*-nxml-*--> |
3a54a157 | 2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
12b42c76 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
0307f791 | 4 | <!-- SPDX-License-Identifier: LGPL-2.1+ --> |
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5 | |
6 | <refentry id="hostname"> | |
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7 | <refentryinfo> |
8 | <title>hostname</title> | |
9 | <productname>systemd</productname> | |
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10 | </refentryinfo> |
11 | ||
12 | <refmeta> | |
13 | <refentrytitle>hostname</refentrytitle> | |
14 | <manvolnum>5</manvolnum> | |
15 | </refmeta> | |
16 | ||
17 | <refnamediv> | |
18 | <refname>hostname</refname> | |
19 | <refpurpose>Local hostname configuration file</refpurpose> | |
20 | </refnamediv> | |
21 | ||
22 | <refsynopsisdiv> | |
23 | <para><filename>/etc/hostname</filename></para> | |
24 | </refsynopsisdiv> | |
25 | ||
26 | <refsect1> | |
27 | <title>Description</title> | |
28 | ||
29 | <para>The <filename>/etc/hostname</filename> file configures the | |
30 | name of the local system that is set during boot using the | |
31 | <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry> | |
32 | system call. It should contain a single newline-terminated | |
139e5336 MP |
33 | hostname string. Comments (lines starting with a `#') are ignored. |
34 | The hostname may be a free-form string up to 64 characters in length; | |
35 | however, it is recommended that it consists only of 7-bit ASCII lower-case | |
36 | characters and no spaces or dots, and limits itself to the format allowed | |
37 | for DNS domain name labels, even though this is not a strict | |
38 | requirement.</para> | |
798d3a52 | 39 | |
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40 | <para>You may use |
41 | <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
42 | to change the value of this file during runtime from the command | |
43 | line. Use | |
44 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
45 | to initialize it on mounted (but not booted) system images.</para> | |
46 | </refsect1> | |
47 | ||
48 | <refsect1> | |
49 | <title>History</title> | |
50 | ||
51 | <para>The simple configuration file format of | |
52 | <filename>/etc/hostname</filename> originates from Debian | |
53 | GNU/Linux.</para> | |
54 | </refsect1> | |
55 | ||
56 | <refsect1> | |
57 | <title>See Also</title> | |
58 | <para> | |
59 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
60 | <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>, | |
61 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
62 | <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>7</manvolnum></citerefentry>, | |
63 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
64 | <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
65 | <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
66 | <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
67 | <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
68 | </para> | |
69 | </refsect1> | |
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70 | |
71 | </refentry> |