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man: document nss-mymachines

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Lennart Poettering 2015-01-07 17:40:10 +01:00
parent 49aa61a550
commit dbda6dce3d
4 changed files with 141 additions and 9 deletions
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7
Makefile-man.am
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@ -1171,10 +1171,16 @@ endif
if ENABLE_MACHINED
MANPAGES += \
man/machinectl.1 \
man/nss-mymachines.8 \
man/systemd-machined.service.8
MANPAGES_ALIAS += \
man/libnss_mymachines.so.2.8 \
man/systemd-machined.8
man/libnss_mymachines.so.2.8: man/nss-mymachines.8
man/systemd-machined.8: man/systemd-machined.service.8
man/libnss_mymachines.so.2.html: man/nss-mymachines.html
$(html-alias)
man/systemd-machined.html: man/systemd-machined.service.html
$(html-alias)
@ -1637,6 +1643,7 @@ EXTRA_DIST += \
man/machinectl.xml \
man/modules-load.d.xml \
man/nss-myhostname.xml \
man/nss-mymachines.xml \
man/os-release.xml \
man/pam_systemd.xml \
man/resolved.conf.xml \

14
man/nss-myhostname.xml
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@ -67,11 +67,12 @@
<itemizedlist>
<listitem><para>The local, configured hostname
is resolved to all locally configured public
IP addresses, or -- if none are configured --
the IPv4 address 127.0.0.2 (which is on the
local loopback) and the IPv6 address ::1
(which is the local host).</para></listitem>
is resolved to all locally configured IP
addresses ordered by their scope, or -- if
none are configured -- the IPv4 address
127.0.0.2 (which is on the local loopback) and
the IPv6 address ::1 (which is the local
host).</para></listitem>
<listitem><para>The hostname
<literal>localhost</literal> is resolved to
@ -125,7 +126,7 @@
group: compat
shadow: compat
hosts: files dns <command>myhostname</command>
hosts: files dns mymachines <command>myhostname</command>
networks: files
protocols: db files
@ -153,6 +154,7 @@ netgroup: nis</programlisting>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>nsswitch.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>getent</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>

116
man/nss-mymachines.xml Normal file
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@ -0,0 +1,116 @@
<?xml version='1.0'?> <!--*-nxml-*-->
<!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 2014 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="nss-mymachines" conditional='ENABLE_MACHINED'>
<refentryinfo>
<title>nss-mymachines</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>nss-mymachines</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>nss-mymachines</refname>
<refname>libnss_mymachines.so.2</refname>
<refpurpose>Provide hostname resolution for local
container instances.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>libnss_mymachines.so.2</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>nss-mymachines</command> is a plugin
for the GNU Name Service Switch (NSS) functionality of
the GNU C Library (<command>glibc</command>) providing
hostname resolution for containers running locally,
that are registered with
<citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. The
container names are resolved to IP addresses of the
specific container, ordered by their scope.</para>
<para>To activate the NSS modules,
<literal>mymachines</literal> has to be added to the
line starting with <literal>hosts:</literal> in
<filename>/etc/nsswitch.conf</filename>.</para>
<para>It is recommended to place
<literal>mymachines</literal> near the end of the
<filename>nsswitch.conf</filename> line to make sure
that this mapping is only used as fallback, and any
DNS or <filename>/etc/hosts</filename> based mapping
takes precedence.</para>
</refsect1>
<refsect1>
<title>Example</title>
<para>Here's an example
<filename>/etc/nsswitch.conf</filename> file, that
enables <command>mymachines</command>
correctly:</para>
<programlisting>passwd: compat
group: compat
shadow: compat
hosts: files dns <command>mymachines</command> myhostname
networks: files
protocols: db files
services: db files
ethers: db files
rpc: db files
netgroup: nis</programlisting>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>nss-myhostname</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>nsswitch.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>getent</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>

13
man/systemd-machined.service.xml
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@ -63,8 +63,13 @@
<para>See
<citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>
for some examples on how to start a container the systemd
way.</para>
for some examples on how to run containers with OS tools.</para>
<para>Use
<citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>
to make the names of local containers known to
<command>systemd-machined</command> locally resolvable
as host names.</para>
<para>See the <ulink
url="http://www.freedesktop.org/wiki/Software/systemd/machined">
@ -78,7 +83,9 @@
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
<citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>nss-mymachines</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>