CTLD(8) 		  BSD System Manager's Manual		       CTLD(8)

NAME
     ctld — CAM Target Layer / iSCSI target daemon

SYNOPSIS
     ctld [-d] [-f config-file]

DESCRIPTION
     The ctld daemon is responsible for managing the CAM Target Layer configu‐
     ration, accepting incoming iSCSI connections, performing authentication
     and passing connections to the kernel part of the native iSCSI target.

     Upon startup, the ctld daemon parses the configuration file and exits, if
     it encounters any errors.	Then it compares the configuration with the
     kernel list of LUNs managed by previously running ctld instances, removes
     LUNs no longer existing in the configuration file, and creates new LUNs
     as necessary.  After that it listens for the incoming iSCSI connections,
     performs authentication, and, if successful, passes the connections to
     the kernel part of CTL iSCSI target, which handles it from that point.

     When it receives a SIGHUP signal, the ctld reloads its configuration and
     applies the changes to the kernel.  Changes are applied in a way that
     avoids unnecessary disruptions; for example removing one LUN does not
     affect other LUNs.

     When exiting gracefully, the ctld daemon removes LUNs it managed and
     forcibly disconnects all the clients.  Otherwise - for example, when
     killed with SIGKILL - LUNs stay configured and clients remain connected.

     To perform administrative actions that apply to already connected ses‐
     sions, such as forcing termination, use ctladm(8).

     The following options are available:

     -f config-file
		 Specifies the name of the configuration file.	The default is
		 /etc/ctl.conf.

     -d 	 Debug mode.  The server sends verbose debug output to stan‐
		 dard error, and does not put itself in the background.  The
		 server will also not fork and will exit after processing one
		 connection.  This option is only intended for debugging the
		 target.

FILES
     /etc/ctl.conf	The configuration file for ctld.  The file format and
			configuration options are described in ctl.conf(5).
     /var/run/ctld.pid	The default location of the ctld PID file.

EXIT STATUS
     The ctld utility exits 0 on success, and >0 if an error occurs.

SEE ALSO
     ctl(4), ctl.conf(5), ctladm(8), ctlstat(8)

HISTORY
     The ctld command appeared in FreeBSD 10.0.

AUTHORS
     The ctld was developed by Edward Tomasz Napierala ⟨trasz@FreeBSD.org⟩
     under sponsorship from the FreeBSD Foundation.

BSD				 May 22, 2015				   BSD