netgroup - list of network groups
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.
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
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.
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.
getnetgrent(3Y), innetgr(3Y), nsd(1M), nis(7P), nsswitch.conf(4)
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