ISCSI.CONF(5)						      BSD File Formats Manual						     ISCSI.CONF(5)

NAME

     iscsi.conf -- iSCSI initiator configuration file

DESCRIPTION

     The file iscsi.conf, is used by the iscsictl(8) and iscontrol(8) utilities.  It contains declarations and parameter/key-options.  The syntax
     is very simple,
	   variable = value;
     and they can be grouped via a block declaration:

	     # this is a comment
	     target_1 { # nickname
		variable = value;
		...
	     } # this must be on a line by itself.

     The following are specified in the iSCSI RFC 3720, for a full description see sections 11/12 of the RFC.

     AuthMethod      currently only supported authentication method is CHAP, with digest either MD5 or SHA.  Default is none.

     HeaderDigest    a digest is calculated on the header of all iSCSI PDUs, and checked.  Only CRC32C is implemented.	Default is none.

     DataDigest      same as for HeaderDigest, but on the data part of the iSCSI PDU.  (not yet tested)

     TargetName      is the name by which the target is known, not to be confused with target address, either obtained via the target administra-
		     tor, or from a discovery session.

     InitiatorName   if not specified, defaults to iqn.2005-01.il.ac.huji.cs: <hostname>.

     TargetAddress   is of the form domainname[:port][,portal-group-tag] to quote the RFC:
		     The domainname can be specified as either a DNS host name, a dotted-decimal IPv4 address, or a bracketed IPv6 address as
		     specified in [RFC2732].
		     Note: portal-group-tag is unused at the moment.  not implemented yet.

     MaxRecvDataSegmentLength
		     the maximum data segment length in bytes it can receive in an iSCSI PDU, default is 8192.

     MaxOutstandingR2T
		     is used to calculate/negotiate the tag opening, can be overridden by the tag option.

     SessionType     either Discovery or Normal, default is Normal, see the -d flag of iscontrol.

     The following are not specified in the RFC 3720

     offload	  Name of selected iSCSI hardware offload driver.

     port	  The iSCSI port used by the iSCSI protocol, defaults to 3260.

     tags	  Sets the tag opening to the value specified.

     maxluns	  overrides the compiled value of luns, see iscsi_initiator(4).  This value can only be reduced.

     sockbufsize  sets the receiver and transmitter socket buffer size to size, in kilobytes.  The default is 128.

     If AuthMethod is set to CHAP, then the following must also be set:

     chapSecret  this shared-secret.  Can be either an ASCII string (e.g. hello world), a hex string (e.g 0xababcd0987654321...), or base64 string
		 (eg 0b...)

     chapIName	 the chap-name, defaults to hostname.

     chapDigest  can be MD5 or SHA1.

     tgtChapName/tgtChapSecret
		 name and secret used for mutual CHAP; by default, mutual CHAP is not used.

FILES

     /etc/iscsi.conf

EXAMPLES

     #
     # Globals
     #
     port = 3260
     #
     myiscsi { # nickname
	targetaddress	     = iscsi1
	targetname	     = iqn.1900.com.com:sn.123456
     }
     chaptest {
	targetaddress= 10.0.0.1;
	targetname   = iqn.1900.com.com:sn.123456
	initiatorname= iqn.2005-01.il.ac.huji.cs:nobody
	authmethod = CHAP; chapDigest = SHA1;
	chapsecret = 0x3713c3336d9a224c2791c873d3d2b174
	tags	     = 256
     }

SEE ALSO

     iscsi_initiator(4), iscontrol(8), iscsictl(8)

STANDARDS

     ISCSI RFC 3720

BUGS

     Some options have not been implemented, either they were found to be unnecessary, or not understood, this can change in the future.
     The tags opening value is difficult to calculate, use wisely.

BSD
								 February 4, 2015							       BSD