July 2010
Beginner to intermediate
1344 pages
40h 20m
English
book
Unix® and Linux® System Administration Handbook, Fourth Edition
by Evi Nemeth, Garth Snyder, Trent R. Hein, Ben Whaley
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4. Access Control and Rootly Powers
Access control is an area of active research, and it has long been one of the major challenges of operating system design. Generically speaking, operating systems define accounts for individual users, and they offer those users a smorgasbord of possible operations: editing text files, logging into remote computers, setting the system’s hostname, installing new software, and so on. The access control system is the black box that considers potential actions (user/operation pairs) and issues rulings as to whether each action is permissible.
In the case of UNIX and Linux, there isn’t really a single black box that ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.