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As a Linux user, our first choice for directory listing is the good old ls command. The ls command, however, lacks some features that are provided by our topic under discussion-the tree command. This command prints the folders, subfolders, and files in the form of a tree.

also on TWinL55: Taskbook, Docker Security Hole, LinuxTracker Issues, Easy Anti-Cheat, Steam 6 Years, Rocket League & more!

With Rsync you can mirror data, create incremental backups and copy files between systems. When copying data, you may want to exclude one or more files or directories based on their name or location.

Have you ever wanted to have that automatic background switching feature on your GNOME Linux distro? I missed that feature after I switched from Cinnamon to GNOME :( Searched for apps in the software center and alas there is none that I could find. However, today I’m happy to let you know that there is a workaround to this missing feature through the use of BASH scripting language.

News briefs for February 20, 2019.

by Mitch Frazier   I have a computer in my bedroom. I also have cats. Unfortunately, cats and screen lockers don't mix well, particularly at night. To be accurate, it's more a problem with the display power management than the actual screen locking. Here's the way it works: I run a script to "shut the lights off at night" (that is, lock the screen and force the display to power down), and that works great, until one of the cats jumps on the desk and causes the mouse to move and turn the display back on. And the cats don't even have to touch the mouse; the slight movement of the desk is enough to cause the mouse to react. Recently, I'd had enough of it and figured there had to be a way to disable the mouse and "refactor" the script.

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2DayGeek: It's mandatory to set the proper timezone in Linux for various reasons.

In this tutorial, we will show you how to set up Kerberos authentication between two Ubuntu 18.04 servers. We will install and configure the Kerberos server on the Ubuntu server and then install the Kerberos client on the other. Finally, we will test the authentication of the SSH service with the Kerberos server.

Infrastructure monitoring is an integral part of infrastructure management. It is an IT manager's first line of defense against surprise downtime. Severe issues can inject considerable downtime to live infrastructure, sometimes causing heavy loss of money and material. Monitoring collects time-series data from your infrastructure so it can be analyzed to predict upcoming issues with the infrastructure and its underlying components. This gives the IT manager or support staff time to prepare and apply a resolution before a problem occurs. A good monitoring system provides: read more

In this article we discuss how to install and use the command line dictionary. It is a nostalgic look at a remnant of the past that still may have a practical use.

In this tutorial, we will show you how to install PHP 7.3 on Debian 9. PHP (Hypertext Preprocessor) is an open-source server-side scripting language designed primarily for creating dynamic interactive websites. PHP is one of the most popular languages and it is freely available for redistribution and modifications. PHP powers WordPress, the most popular content management system used for blogging and building websites, as well as many other e-commerce websites, customer relationship management software, enterprise resource planning software, and much more.

Every day there seems to be a security breach reported in the news where our data is at risk. Despite the fact that SSH is a secure way to connect remotely to a system, you can still make it even more secure. This article will show you how. That’s where two-factor authentication (2FA) comes in. […]

This is the latest in our series of articles highlighting essential system tools. These are small, indispensable utilities, useful for system administrators as well as regular users of Linux based systems. The series examines both graphical and text based open source utilities. For this article, we’ll look at QDirStat, a graphical application to show what’s devouring your disk space and help you tidy up the disorder.

There are plenty of specialized Linux distributions for the Raspberry Pi. Here are some of the best Linux distro you can run on Raspberry Pi.

Apache Cassandra is a free and open source NoSQL database with no single point of failure. It provides linear scalability and high availability without compromising performance. Apache Cassandra is used by a number of organizations including Apple, NetFlix, eBay, and Easou.

Berners-Lee's WorldWideWeb code can't handle much, but hey, it now runs in a browser In preparation for next month's 30th anniversary of the proposal that gave us the world wide web, boffins at the behest of CERN have recreated the world's first web browser, and made it accessible as a modern web page.…

The KDE Project released today the first point release of the latest KDE Plasma 5.15 desktop environment series to address various issues and annoyances reported by users.

Cachet is a beautiful and powerful open source status page system written in PHP that allows you to better communicate downtime and system failures to your customers, teams, and shareholders.

Offensive Security announced today the general availability of the Kali Linux 2019.1, the first update of the popular ethical hacking and penetration testing operating system in 2019.

When you think of the word wiki, chances are the first thing that comes to mind is Wikipedia. That's not a surprise, considering that Wikipedia did help put the concept of the wiki into the popular consciousness. Wikis, which are websites you can edit, are great tools for collaborating and organizing. But wikis usually require a lot of digital plumbing and a bit of care to use and maintain. All of that's overkill for personal use. read more