samba-mirror/docs-xml/manpages/samba-dcerpcd.8.xml

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<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
<refentry id="samba-dcerpcd.8">

<refmeta>
	<refentrytitle>samba-dcerpcd</refentrytitle>
	<manvolnum>8</manvolnum>
	<refmiscinfo class="source">Samba</refmiscinfo>
	<refmiscinfo class="manual">System Administration tools</refmiscinfo>
	<refmiscinfo class="version">&doc.version;</refmiscinfo>
</refmeta>


<refnamediv>
	<refname>samba-dcerpcd</refname>
	<refpurpose>This is one of Samba's DCERPC server processes
	that can listen on sockets where RPC services are offered and
	is the parent process of the DCERPC services it
	invokes. Unless separately invoked it is started on demand
	from <command>smbd</command> or <command>winbind</command> and
	serves DCERPC only over named pipes (np) as a helper
	process. This will be the standard setup for most
	installations (standalone/member server/AD server) unless they
	modify their startup scripts. Note in when Samba is configured
	as an Active Directory Domain controller the
	<command>samba</command> process that invokes
	<command>smbd</command> will still provide its normal DCERPC
	services, not <command>samba-dcerpcd</command>. When
	separately invoked by system startup scripts or a daemon,
	the global smb.conf option <smbconfoption name="rpc start on
	demand helpers">false</smbconfoption> MUST be set to allow
	<command>samba-dcerpcd</command> to start standalone.
	</refpurpose>
</refnamediv>

<refsynopsisdiv>
	<cmdsynopsis>
		<command>samba-dcerpcd</command>
		<arg choice="opt">-D|--daemon</arg>
		<arg choice="opt">-i|--interactive</arg>
		<arg choice="opt">-F|--foreground</arg>
		<arg choice="opt">--no-process-group</arg>
		<arg choice="opt">-d &lt;debug level&gt;</arg>
		<arg choice="opt">--debug-stdout</arg>
		<arg choice="opt">--configfile=&lt;configuration file&gt;</arg>
		<arg choice="opt">--option=&lt;name&gt;=&lt;value&gt;</arg>
		<arg choice="opt">--leak-report</arg>
		<arg choice="opt">--leak-report-full</arg>
		<arg choice="opt">-V|--version</arg>
		<arg choice="opt">--libexec-rpcds</arg>
		<arg choice="opt">--np-helper</arg>
		<arg choice="opt">--ready-signal-fd=&lt;fd&gt;</arg>
		<arg choice="opt">&lt;SERVICE_1&gt;</arg>
		<arg choice="opt">&lt;SERVICE_2&gt;</arg>
		<arg choice="opt">&lt;...&gt;</arg>
	</cmdsynopsis>
</refsynopsisdiv>

<refsect1>
	<title>DESCRIPTION</title>

	<para>This tool is part of the
	<citerefentry><refentrytitle>samba</refentrytitle>
	<manvolnum>7</manvolnum></citerefentry> suite.</para>

	<para>
	  samba-dcerpcd can be used in two ways. In the normal case
	  without startup script modification and the global smb.conf
	  option <smbconfoption name="rpc start on demand
	  helpers">true</smbconfoption> is set (the default setting),
	  it is invoked on demand from <command>smbd</command> or
	  <command>winbind</command> with a command line
	  containing --np-helper to serve DCERPC over named pipes
	  (np). It can also be used in a standalone mode where it is
	  started separately from <command>smbd</command> or
	  <command>winbind</command> via system startup scripts. If
	  invoked as a standalone daemon or started from system
	  startup scripts the global smb.conf option <smbconfoption
	  name="rpc start on demand helpers">false</smbconfoption>
	  MUST be set to false. If the global smb.conf option
	  <smbconfoption name="rpc start on demand
	  helpers">true</smbconfoption> is set to true or left as
	  default, <command>samba-dcerpcd</command> will fail to start
	  and log an error message.
	</para>
	<para>
	  Note that when Samba is run in the Active Directory Domain
	  Controller mode the <command>samba</command> AD code will
	  still provide its normal DCERPC services whilst allowing
	  samba-dcerpcd to provide services like SRVSVC in the same
	  way that <command>smbd</command> used to in this
	  configuration.
	</para>
	<para>
	  The standalone mode can also be useful for use outside of
	  the Samba framework, for example, use with the Linux kernel
	  SMB2 server ksmbd or possibly other SMB2 server
	  implementations. In this mode it behaves like inetd and
	  listens on sockets on behalf of RPC server implementations.
	</para>
	<para>
	  When a client connects, <command>samba-dcerpcd</command>
	  will start the relevant RPC service binary on demand and
	  hand over the connection to that service. When an RPC
	  service has been idle for a while,
	  <command>samba-dcerpcd</command> will ask it to shut down
	  again.
	</para>

</refsect1>

<refsect1>
	<title>OPTIONS</title>

	<variablelist>
		<varlistentry>
		<term>-D|--daemon</term>
		<listitem><para>If specified, this parameter causes
		the server to operate as a daemon. That is, it
		detaches itself and runs in the background, fielding
		requests on the appropriate port. Operating the server
		as a daemon is useful for running
		<command>samba-dcerpcd</command> outside of the Samba
		framework. However, it can also be used in this way
		within Samba for member servers if configured to start
		up via system startup scripts.  This switch is assumed
		if <command>samba-dcerpcd</command> is executed on the
		command line of a shell.  </para></listitem>
		</varlistentry>

		<varlistentry>
		<term>-i|--interactive</term>
		<listitem><para>If this parameter is specified it
		causes the server to run "interactively", not as a
		daemon, even if the server is executed on the command
		line of a shell. Setting this parameter negates the
		implicit daemon mode when run from the command
		line. <command>samba-dcerpcd</command> will only
		accept one connection and terminate. It will also log
		to standard output, as if the <command>-S</command>
		parameter had been given.
		</para></listitem>
		</varlistentry>

		<varlistentry>
		<term>-F|--foreground</term>
		<listitem><para>If specified, this parameter causes
		the main <command>samba-dcerpcd</command> process to
		not daemonize, i.e. double-fork and disassociate with
		the terminal.  Child processes are still spawned as
		normal to service each connection request, but the
		main process does not exit. This operation mode is
		suitable for running <command>samba-dcerpcd</command>
		under process supervisors such as
		<command>supervise</command> and
		<command>svscan</command> from Daniel J. Bernstein's
		<command>daemontools</command> package, or the AIX
		process monitor.  </para></listitem>
		</varlistentry>

		<varlistentry>
		<term>--no-process-group</term>
		<listitem><para>Do not create a new process group for
		samba-dcerpcd.
		</para></listitem>
		</varlistentry>

		<varlistentry>
		<term>--libexec-rpcds</term>
		<listitem><para>Offer RPC services for all daemons in
		Samba's LIBEXECDIR, all programs starting with
		&quot;rpcd_&quot; are assumed to offer RPC
		services. If you don't use the
		<command>--libexec-rpcds</command> option, you can
		explicitly list all RPC service helpers explicitly on
		the command line.</para></listitem>
		</varlistentry>

		<varlistentry>
		<term>--np-helper</term>
		<listitem><para>Run <command>samba-dcerpcd</command>
		on demand opening named pipe sockets as helpers for
		<command>smbd</command> or <command>winbind</command>.
		In order to run in this mode, the global smb.conf
		option <smbconfoption name="rpc start on demand
		helpers">true</smbconfoption> must be set to true
		(this is the default setting).  </para></listitem>
		</varlistentry>

		<varlistentry>
		<term>--ready-signal-fd=&lt;fd&gt;</term>
		<listitem><para>Report service readiness via this fd
		to <command>smbd</command>. Only for internal use.
		</para></listitem>
		</varlistentry>
	</variablelist>
</refsect1>

<refsect1>
	<title>AUTHOR</title>

	<para>
	  The original Samba software and related utilities were
	  created by Andrew Tridgell. Samba is now developed by the
	  Samba Team as an Open Source project similar to the way the
	  Linux kernel is developed.
	</para>
</refsect1>

</refentry>