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

Move over Skype, Facetime, Hangouts. Here comes Spreedbox, a fully open source, secure videoconferencing solution

Following the trend of privacy-respecting products and projects coming out of Europe (e.g., ownCloud, Kolab, and Plasma Mobile), German firm struktur AG has started a Kickstarter project called Spreedbox, which aims to offer a secure audio video conferencing service. According to the project page, “The Spreedbox is a unique device for secure audio/video conferencing, text and video messaging and file sharing. The Spreedbox is your own conferencing, meeting and file exchange service on the Internet and puts the control and security of your data into your own hands.” Read more

Student researchers collaborate virtually with help of open-source software

A typical summer research program—the institute's Nanobio Research Experience for Undergraduates, for example—brings students together to one host university, where they work in different laboratories on various projects. In the new pilot training program on Computational Biomolecular, students use an open-source software called Rosetta to work together on problems in computational biology and are mentored by faculty who are part of a global collaborative team known as the Rossetta Commons. The software gives users the ability to analyze massive amounts of data to predict the structure of real and imagined proteins, enzymes, and other molecular structures. Read more

Open Source Is Going Even More Open—Because It Has To

Open source foundations are nothing new. Linux Foundation has been around since 2007, and other major projects like the Eclipse code editing tool and the Apache web server have been governed this way for even longer. Many of the most important open source projects in recent years, such as the Hadoop big data crunching platform and the database system Cassandra, are managed by the Apache Foundation. But it’s unusual to see so many new foundations created so quickly. Read more

Apache HTTP Server Vulnerabilities Fixes in Ubuntu OSes

Details about a couple of Apache HTTP Server vulnerabilities that have been found and fixed in Ubuntu 15.04, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS have now been published by Canonical in a security notification. Read more