Using Netgroups
Netgroups are a great way to identify people and machines under nice, neat names for access control. A good example of using this feature is for a site where users are not allowed to log in to server machines. You can create a netgroup for the system administrators and let in members of the group through a special entry in the /etc/passwd file.
Netgroup information is kept in the /etc/netgroup file and shared via NIS.
The format of a netgroups file is as follows:
groupname member-list
groupname is the name of the group being defined, and the member-list consists of other group names or tuples of specific data. Each entry in the member-list is separated by a whitespace.
A tuple containing specific data comes in this form:
( ...
Get Red Hat® Linux® 7 Unleashed now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
