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man: make /etc/nsswitch.conf documentation for nss-resolve match example

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Fixes: #4683
This commit is contained in:
Lennart Poettering 2016-11-18 17:31:49 +01:00
parent d9ec2e632d
commit 640be8806e
1 changed files with 7 additions and 13 deletions
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20
man/nss-resolve.xml
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@ -63,16 +63,13 @@
hostnames via DNS.</para>
<para>To activate the NSS module, add <literal>resolve</literal> to the line starting with
<literal>hosts:</literal> in <filename>/etc/nsswitch.conf</filename>.</para>
<para>It is recommended to place <literal>resolve</literal> early in <filename>/etc/nsswitch.conf</filename>'
<literal>hosts:</literal> line (but after the <literal>files</literal> or <literal>mymachines</literal> entries),
replacing the <literal>dns</literal> entry if it exists, to ensure DNS queries are always routed via
<citerefentry><refentrytitle>systemd-resolved</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
<para>Note that <command>nss-resolve</command> will chain-load <command>nss-dns</command> if
<filename>systemd-resolved.service</filename> is not running, ensuring that basic DNS resolution continues to work
if the service is down.</para>
<literal>hosts:</literal> in <filename>/etc/nsswitch.conf</filename>. Specifcally, it is recommended to place
<literal>resolve</literal> early in <filename>/etc/nsswitch.conf</filename>' <literal>hosts:</literal> line (but
after the <literal>files</literal> or <literal>mymachines</literal> entries), right before the
<literal>dns</literal> entry if it exists, followed by <literal>[!UNAVAIL=return]</literal>, to ensure DNS queries
are always routed via
<citerefentry><refentrytitle>systemd-resolved</refentrytitle><manvolnum>8</manvolnum></citerefentry> if it is
running, but are routed to <command>nss-dns</command> if this service is not available.</para>
</refsect1>
<refsect1>
@ -94,9 +91,6 @@ ethers: db files
rpc: db files
netgroup: nis</programlisting>
<para>This keeps the <command>dns</command> module as a fallback for cases where the <command>nss-resolve</command>
module is not installed.</para>
</refsect1>
<refsect1>