netgroup man page on SuSE

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NETGROUP(5)		     NIS Reference Manual		   NETGROUP(5)

NAME
       netgroup - specify network groups

DESCRIPTION
       The netgroup file defines "netgroups", which are sets of (host, user,
       domain) tuples, used for permission checking when doing remote
       mounts,remote logins and remote shells.

       Each line in the file consists of a netgroup name followed by a by a
       list of members, where a member is either another netgroup name, or a
       triple:

	  (host, user, domain)

       where the host, user, and domain are character strings for the
       corresponding components. Any of the three fields can be empty, in
       which case it specifies a "wildcard", or may consist of the string "-"
       to specify "no valid value". The domain field must either be the local
       domain name or empty for the netgroup entry to be used. This field does
       not limit the netgroup or provide security. The domain field refers to
       the domain in which the triple is valid, not the domain containing the
       the trusted host.

       A gateway machine should be listed under all possible hostnames by
       which it may be recognized:

	  gateway (server, , ) (server-sn, , ) (server-bb, , )

       The getnetgrent(3), function should normally be used to access the
       netgroup database.

FILES
       /etc/netgroup

SEE ALSO
       getnetgrent(3), exports(5), makedbm(8), ypserv(8)

WARNINGS
       The triple (,,domain) allows all users and machines trusted access, and
       has the same effect as the triple (,,). Use the host and user fields of
       the triple to restrict the access correctly to a specific set of
       members.

AUTHOR
       Thorsten Kukuk <kukuk@thkukuk.de>

NIS Reference Manual		  04/06/2006			   NETGROUP(5)
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