Getting to grips with Linux Permissions
DO IT WITH PERMISSION
From the vault:This article first appeared in issue #1 (October 2000). You'll also find this article on our 10-year anniversary Archive DVD included in issue #120 (November 2010).
With any operating system it is important to ensure that users remain in control of their files and directories and are prevented from tampering with those belonging to other users, or the system. This is what the Linux permissions system is all about, as Jono Bacon explains.
The 10-year anniversary issue hits newsstands starting:
Europe: October 4
North America: October 29
Australia: November 29
[flickr image courtesy of jessica.diamond]
Permissions are at the heart of how Linux works. Some operating systems (such as MS-DOS and some variants of Microsoft Windows) treat all files in the same way. This means that any user can change any file. Usually, there is only one kind of user.
Our Services
Direct Download
Read full article as PDF » File_Permissions.pdf (214.91 kB)Tag Cloud
News
-
Google and NASA Partner in Quantum Computing Project
Vendor D-Wave scores big with a sale to NASA's Quantum Intelligence Lab.
-
Mageia Project Announces Mageia 3 Linux
Many package updates and Steam integration highlight the latest from the Mandriva-based community Linux.
-
FSF Outs the World Wide Web Consortium over DRM Proposal
Richard Stallman calls for the W3C to remain independent of vendor interests.
-
Debian 7.0 Debuts
The new release supports nine architectures, 73 human languages, and zero non-Free components.
-
Alpha Version of Fedora 19 Released
Fedora developers release the first alpha version of Fedora 19, known as Schrödinger’s Cat, for general testing. The final release is expected in July 2013.
-
ack 2.0 Released
ack is a grep-like, command-line tool that has been optimized for programmers to search large trees of source code.
-
SUSE Studio 1.3 Released
New features in SUSE Studio 1.3 include enhanced cloud integration, VM platform support, and lifecycle management.
-
Xen To Become Linux Foundation Collaborative Project
The Linux Foundation recently announced that the Xen Project is becoming a Linux Foundation Collaborative Project.
-
RunRev Releases Open Source Version of LiveCode
Open source version of LiveCode is now available for developing apps, games, and utilities for all major platforms.
-
OpenDaylight Project Formed
OpenDaylight is an open source software-defined networking project committed to furthering adoption of SDN and accelerating innovation in a vendor-neutral and open environment.