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<samba:parameter name="rpc_daemon"
context="G"
type="string"
advanced="1" print="1"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
<para>
Defines whether to use the embedded code or start a separate daemon
for the defined rpc services.
The rpc_daemon prefix must be followed by the server name, and a value.
</para>
<para>
Two possible values are currently supported:
<command moreinfo="none">disabled</command>
<command moreinfo="none">fork</command>
</para>
<para>
The classic method is to run rpc services as internal daemons
embedded in smbd, therefore the external daemons are
<emphasis>disabled</emphasis> by default.
</para>
<para>
Choosing the <emphasis>fork</emphasis> option will cause samba to fork
a separate proces for each daemon configured this way. Each daemon may
in turn fork a number of children used to handle requests from multiple
smbds and direct tcp/ip connections (if the Endpoint Mapper is
enabled). Communication with smbd happens over named pipes and require
that said pipes are forward to the external daemon (see <smbconfoption
name="rpc_server"/>).
</para>
<para>
Forked RPC Daemons support dynamically forking children to handle
connections. The heuristics about how many children to keep around and
how fast to allow them to fork and also how many clients each child is
allowed to handle concurrently is defined by parametrical options named
after the daemon.
Five options are currently supported:
<command moreinfo="none">prefork_min_children</command>
<command moreinfo="none">prefork_max_children</command>
<command moreinfo="none">prefork_spawn_rate</command>
<command moreinfo="none">prefork_max_allowed_clients</command>
<command moreinfo="none">prefork_child_min_life</command>
To set one of these options use the follwing syntax:
<programlisting>
damonname:prefork_min_children = 5
</programlisting>
</para>
<para>
Samba includes separate daemons for spoolss and the lsarpc/lsass,
netlogon and samr pipes. Currently three daemons are available and they
are called:
<command moreinfo="none">epmd</command>
<command moreinfo="none">lsasd</command>
<command moreinfo="none">spoolssd</command>
Example:
<programlisting>
rpc_daemon:spoolssd = fork
</programlisting>
</para>
</description>
<value type="default">disabled</value>
</samba:parameter>
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