NETGROUP(4)							   NETGROUP(4)

NAME    [Toc]    [Back]

     netgroup -	list of	network	groups

DESCRIPTION    [Toc]    [Back]

     Netgroup defines network-wide groups, used	for permission checking	when
     doing remote mounts, remote logins, and remote shells.  For remote
     mounts, the information in	netgroup is used to classify machines; for
     remote logins and remote shells, it is used to classify users.  Each line
     of	the netgroup file defines a group and has the format

	   groupname member1 member2 ....

     where memberi is either another group name, or a triple:

	   (hostname, username,	domainname)

	   hostname:	   The ``preferred'' name of the client	host, the host
			   from	which the rlogin(1C) or	rsh(1C)	command	is
			   invoked.  Note that the preferred name is the first
			   name	given to that host in the /etc/hosts file.
			   The second and later	names are the aliases for that
			   preferred name.  The	preferred name is commonly the
			   fully-qualified ``domain-style'' name.

	   username:	   This	is the simple user name	string.

	   domainname:	   This	is the name of the domain of the server
			   system, not the client system.

     Any of three fields can be	empty, in which	case it	signifies a wild card.
     Thus

	   universal (,,)

     defines a group to	which everyone belongs.	 Field names that begin	with
     something other than a letter, digit or underscore	(such as ``-'')	work
     in	precisely the opposite fashion.	For example, consider the following
     entries:

	   justmachines	 (analytica,-,sun)
	   justpeople	 (-,babbage,sun)

     The machine analytica belongs to the group	justmachines in	the domain
     sun, but no users belong to it.  Similarly, the user babbage belongs to
     the group justpeople in the domain	sun, but no machines belong to it.

CAVEATS    [Toc]    [Back]

     The netgroup data is used only when the nsd(1M) daemon is running.	 It is
     supported in any of the protocol libraries	included with Irix, but	only
     one protocol may be used.	Listing	multiple protocols on the netgroups
     line in nsswitch.conf(4) is not well defined.




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NETGROUP(4)							   NETGROUP(4)

FILES    [Toc]    [Back]

     /etc/netgroup

SEE ALSO    [Toc]    [Back]

     getnetgrent(3Y), innetgr(3Y), nsd(1M), nis(7P), nsswitch.conf(4)


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