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doc: clarify default for "connection.mdns" in manual

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The default in systemd-resolved is nowadays "yes". In any case, since
the setting is configurable systemd-resolved, don't describe it in the
manual page.

Instead, clarify the behavior and try to improve the documentation.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1467
This commit is contained in:
Thomas Haller 2024-01-23 13:39:54 +01:00
parent f1761c0184
commit fa503e402d
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2 changed files with 11 additions and 4 deletions
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8
man/NetworkManager.conf.xml
View file

@ -868,7 +868,13 @@ ipv6.ip6-privacy=0
</varlistentry>
<varlistentry>
<term><varname>connection.mdns</varname></term>
<listitem><para>If unspecified, the ultimate default values depends on the DNS plugin. With systemd-resolved the default currently is "no" (0) and for all other plugins also "no" (0).</para></listitem>
<listitem><para>
Currently only the systemd-resolve DNS plugin supports this setting.
If the setting is unspecified both in the profile and in the global
default here, then the default is determined by systemd-resolved.
See <literal>MulticastDNS=</literal> in
<citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>connection.mptcp-flags</varname></term>

7
src/libnm-core-impl/nm-setting-connection.c
View file

@ -2724,11 +2724,12 @@ nm_setting_connection_class_init(NMSettingConnectionClass *klass)
* for the connection, "no" (0) disable mDNS for the interface, "resolve"
* (1) do not register hostname but allow resolving of mDNS host names
* and "default" (-1) to allow lookup of a global default in NetworkManager.conf.
* If unspecified, "default" ultimately depends on the DNS plugin (which
* for systemd-resolved currently means "no").
* If unspecified, "default" ultimately depends on the DNS plugin.
*
* This feature requires a plugin which supports mDNS. Otherwise, the
* setting has no effect. One such plugin is dns-systemd-resolved.
* setting has no effect. Currently the only supported DNS plugin is
* systemd-resolved. For systemd-resolved, the default is configurable via
* MulticastDNS= setting in resolved.conf.
*
* Since: 1.12
**/