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man: update documenting signals in NetworkManager manual

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(cherry picked from commit ec89bd5171)
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Thomas Haller 2016-05-31 15:58:25 +02:00
parent d175654fca
commit 84f37b4305
1 changed files with 20 additions and 4 deletions
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24
man/NetworkManager.xml
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@ -428,20 +428,36 @@
The signal causes a reload of NetworkManager's configuration.
Note that not all configuration parameters can be changed at
runtime and therefore some changes may be applied only after
the next restart of the daemon. The signal also forces a
rewrite of DNS configuration.
the next restart of the daemon.
A SIGHUP also involves further reloading actions, like doing
a DNS update and restarting the DNS plugin. The latter can be
useful for example when using the dnsmasq plugin and changing
its configuration in /etc/NetworkManager/dnsmasq.d. However,
it also means this will shortly interrupt name resolution.
In the future, there may be further actions added.
A SIGHUP means to update NetworkManager configuration and reload
everything that is supported. Note that this does not reload
connections from disk. For that there is a D-Bus API and
nmcli's reload action
</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SIGUSR1</varname></term>
<listitem><para>
The signal forces a rewrite of DNS configuration.
The signal forces a rewrite of DNS configuration. Contrary to
SIGHUP, this does not restart the DNS plugin and will not interrupt
name resolution.
In the future, further actions may be added. A SIGUSR1
means to write out data like resolv.conf, or refresh a cache.
It is a subset of what is done for SIGHUP without reloading
configuration from disk.
</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SIGUSR2</varname></term>
<listitem><para>
The signal has no effect at the moment.
The signal has no effect at the moment but is reserved for future
use.
</para></listitem>
</varlistentry>
</variablelist>