- <refentryinfo>
- <title>/etc/hostname</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>hostname</refentrytitle>
- <manvolnum>5</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>hostname</refname>
- <refpurpose>local host name configuration file</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <para><filename>/etc/hostname</filename></para>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para>The <filename>/etc/hostname</filename> file
- configures the name of the local system that is set
- during boot, with the
- <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>
- system call. It should contain a single
- newline-terminated host name string. The
- host name may be a free-form string up to 64 characters
- in length, however it is recommended that it consists
- only of 7bit ASCII characters and no spaces or dots,
- and limit itself to the format allowed for DNS domain
- name labels, even though this is not a
- requirement.</para>
-
- <para>Depending on the operating system other
- configuration files might be checked for configuration
- of the host name as well, however only as fallback.</para>
- </refsect1>
-
- <refsect1>
- <title>History</title>
-
- <para>The simple configuration file format of
- <filename>/etc/hostname</filename> originates from
- Debian GNU/Linux.</para>
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- </para>
- </refsect1>
+ <refentryinfo>
+ <title>hostname</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>hostname</refentrytitle>
+ <manvolnum>5</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>hostname</refname>
+ <refpurpose>Local hostname configuration file</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <para><filename>/etc/hostname</filename></para>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The <filename>/etc/hostname</filename> file configures the
+ name of the local system that is set during boot using the
+ <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ system call. It should contain a single newline-terminated
+ hostname string. The hostname may be a free-form string up to 64
+ characters in length; however, it is recommended that it consists
+ only of 7-bit ASCII lower-case characters and no spaces or dots,
+ and limits itself to the format allowed for DNS domain name
+ labels, even though this is not a strict requirement.</para>
+
+ <para>Depending on the operating system, other configuration files
+ might be checked for configuration of the hostname as well,
+ however only as fallback.</para>
+
+ <para>You may use
+ <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ to change the value of this file during runtime from the command
+ line. Use
+ <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ to initialize it on mounted (but not booted) system images.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>History</title>
+
+ <para>The simple configuration file format of
+ <filename>/etc/hostname</filename> originates from Debian
+ GNU/Linux.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>