netgroup.4 (2010 09)

n
netgroup(4) netgroup(4)
NAME
netgroup - list of network groups
DESCRIPTION
File
/etc/netgroup
defines network-wide groups, and is used for permission checking when execut-
ing remote mounts, remote logins, and remote shells. For remote mounts, the information in
netgroup
classifies machines; for remote logins and remote shells, it classifies users.
Each line of the
netgroup file defines a group. The items on a line may be separated by a combination
of one or more spaces or tabs. The line has the format
groupname member1 member2 ...
where member i is either another group name, or a triple.
(hostname, username, domainname)
If any of these three fields is left empty, it signifies a wildcard. Thus
universal (,,)
defines a group to which everyone belongs. Field names that begin with something other than a letter,
digit or underscore (such as -) do not match any value. For example, consider the following entries.
justmachines (analytica,-,YOURDOMAIN)
justpeople (-,root,YOURDOMAIN)
Machine analytica belongs to the group justmachines in the domain YOURDOMAIN, but no users
belong to it. Similarly, the user root belongs to the group justpeople in the domain YOURDOMAIN,
but no machines belong to it.
Note, the domainname field must match the current domain name (as returned by the
domainname
command), or the entry is not matched. Also, the username field is ignored for remote mounts. Only the
hostname and domainname are used.
The Network Information Service (NIS) can serve network groups. When it does, the groups are stored in
the following NIS maps:
netgroup
netgroup.byuser
netgroup.byhost
Refer to ypserv (1M) and ypfiles(4) for an overview of Network Information Service.
AUTHOR
netgroup was developed by Sun Microsystems, Inc.
FILES
/etc/netgroup
SEE ALSO
makedbm(1M), mountd(1M), ypmake(1M), ypserv(1M), getnetgrent(3C), hosts.equiv(4), ypfiles(4).
Installing and Administering NFS Services , Chapter 7: NIS Configuration .
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1