4.4BSD/usr/share/man/cat5/netgroup.0

NETGROUP(5)                 BSD Programmer's Manual                NETGROUP(5)

NNAAMMEE
     nneettggrroouupp - defines network groups

SSYYNNOOPPSSIISS
     nneettggrroouupp

DDEESSCCRRIIPPTTIIOONN
     The nneettggrroouupp file specifies ``netgroups'', which are sets of ((hhoosstt,, uusseerr,,
     ddoommaaiinn)) tuples that are to be given similar network access.

     Each line in the file consists of a netgroup name followed by a list of
     the members of the netgroup.  Each member can be either the name of an-
     other netgroup or a specification of a tuple as follows:

           (host, user, domain)
     where the hhoosstt, uusseerr, and ddoommaaiinn are character string names for the cor-
     responding component.  Any of the comma separated fields may be empty to
     specify a ``wildcard'' value or may consist of the string ``-'' to speci-
     fy ``no valid value''.  The members of the list may be separated by
     whitespace and/or commas; the ``\'' character may be used at the end of a
     line to specify line continuation.  The functions specified in getnet-
     grent(3) should normally be used to access the nneettggrroouupp database.

     Lines that begin with a # are treated as comments.

FFIILLEESS
     /etc/netgroup  the netgroup database.

SSEEEE AALLSSOO
     getnetgrent(3),  exports(5)

CCOOMMPPAATTIIBBIILLIITTYY
     The file format is compatible with that of various vendors, however it
     appears that not all vendors use an identical format.

BBUUGGSS
     The interpretation of access restrictions based of the member tuples of a
     netgroup is left up to the various network applications.  Also, it is not
     obvious how the domain specification applies to the BSD environment.

4.4BSD                           June 5, 1993                                1