Language Selection

English French German Italian Portuguese Spanish

Common Administrative Tasks in Linux

Filed under
HowTos

The tasks in this article are common ones that you may need to do when settingup your system and beginning your new life as the system administrator of your own Linux system.

Basic User and Group Concepts

Linux is a truly multiuser operating system. The concept of users and groups in Linux is inherited from the Unix tradition, and among other things provides a very clear and precise distinction between what normal users can do and what a privileged user can do (such as the root user, the superuser and ultimate administrator on a Linux system, who can do anything).

The fact that the system of users and groups and the associated system of permissions is built into the system at the deepest level is one of the reasons why Linux (and Unix in general) is fundamentally secure in a way that Microsoft Windows is not. Although modern versions of Windows have a similar concept of users and groups, the associated concept of the permissions with which a process can be run leaves a lot to be desired.

This is why there are so many Windows vulnerabilities that are based on exploiting the scripting capabilities of programs that are run with user privileges but that turn out to be capable of subverting the system.

Full Story.

Useful information

Thank you for the link to this article.

-----

I try to take one day at a time -- but sometimes several days attack me at once - Ashleigh Brilliant

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

More in Tux Machines

today's howtos

6-Way Enterprise Focused Linux Distribution Comparison With An Intel Core i9, Dual Xeon Gold Systems

Here's our latest Linux distribution comparison with this time looking at the out-of-the-box performance of six Linux distributions while running a range of enterprise/workstation-focused benchmarks while using two systems. One system is a high-end Core i9 7980XE desktop system and the other a Tyan 1U Xeon Scalable server with dual Xeon Gold 6138 processors. Read more

Security: FOSS Versus Windows

Linux/Android hacker SBC with hexa-core Rockchip SoC debuts at $75

The Vamrs “RK3399 Sapphire” SBC is on sale for $75, or $349 for a full kit. Vamrs is also prepping an RK3399-based “Rock960” 96Boards SBC. Rockchip’s RK3399 is one of the most powerful ARM-based system-on-chips available on hacker boards, featuring two server-class Cortex-A72 cores clocked to up to 2.0GHz, as well as four Cortex-A53 at up to 1.42GHz and a quad-core Mali-T864 GPU. The hexa-core SoC has appeared on T-Firefly’s Firefly-RK3399 SBC and RK3399 Coreboard computer-on-module, as well as Videostrong’s VS-RD-RK3399 SBC and Theobroma’s RK3399-Q7 Qseven module. Now we have a new contender: Shenzhen based Vamrs, which built the limited edition Rockchip RK3399 Sapphire SBC as the official RK3399 dev board for Rockchip, is now re-launching the board, which features a 40-pin Raspberry Pi compatible connector, with “many in stock” for a discounted price of $75. Read more