<?xml version='1.0'?> <!--*-nxml-*--> <?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <!-- This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. --> <refentry id="hostname"> <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> </refentry>