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Understanding Linux permissions and how to control which users have access to files is a fundamental skill for systems administration. This article will cover standard Linux file systems permissions, dig further into special permissions, and wrap up with an explanation of default permissions using umask. read more

ACO is a new Mesa shader compiler for AMD hardware, announced by Valve earlier this month. It's aimed as a replacement for LLVM and its main two goals are best-possible code generation for game shaders, and fastest-possible compilation speed.

One of the hottest topics within the DevOps space is Continuous Integration and Continuous Deployment (CI/CD). This attention has drawn lots of investment dollars, and a vast array of proprietary Software As A Service (SaaS) tools have been created in the CI/CD space, which traditionally has been dominated by free open-source software (FOSS) tools. Is FOSS still the right choice with the low cost of many of these SaaS options?

Install and setup Grafana on Ubuntu 18.04 with Nginx and add remote MySQL database as data source in Grafana to visualize the data

As a follow-up to 2011's Waves, Waves 2: Notorious has arrived on Linux as part of the 0.73 Early Access update on Steam.

Hyperledger Explorer is a powerful utility that allows users to create user-friendly web-based applications. It is a blockchain dashboard and provides the ability to view, invoke, deploy, and query raw blockchain data and network information, including block details, chain codes, and transactions stored in the ledger.

In the last 3 years I was searching for an easy to use app or a useful tool to display and control my Android smartphone. Unfortunately, I spent a lot of time searching unsuccessfully - I think the problem was with my research method - until I found last week what I was looking for that made me forget my past suffering. If you are interesting in displaying and controlling your Android device on Linux , you are on the right place as I will share with you in this tutorial my humble experience with the discovered application.

Sometimes the system becomes corrupted after installing an application or driver. Whatever the cause, you will definitely want to get back to the state where your system worked perfectly. Restoring the system to its previous state can help you restore the system to a normal state. In this article we will see how to restore Ubuntu OS to its previous state using the System Back Utility. We will see both GUI and CLI versions.

SSH is an every-day tool of any Linux System Administration job. It is an easy and secure way to access remote machines on the network, transfer data and execute remote commands. Apart from interactive mode, there are many tools exist that enable automation of remote tasks that also rely on the existing ssh server/client architecture. For one such tool, you can read about ansible on Ubuntu for example. You can also find many implementations of the ssh client, but what about accessing the abilities ssh provides from code?

Want to use the GNOME or KDE Linux desktops on your virtual reality headset? A new open-source project aims to let you play games and use your Linux desktop with your VR head-mounted display.

It helps you to re-check that you have missed any characters or typed any extra characters in password.

When using multiple monitors, by default, means that your desktop wallpaper is duplicated across all of your screens. However, with all that screen real-estate that a multiple monitor setup delivers, having a different wallpaper for each monitor is a nice way to brighten up your workspace even more. One manual workaround for getting different wallpapers […]

Debian 10 is released and in this tutorial, we examine how you can install Google Chrome on Debian 10.

A Bash alias is a method of supplementing or overriding Bash commands with new ones. Bash aliases make it easy for users to customize their experience in a POSIX terminal. They are often defined in $HOME/.bashrc or $HOME/bash_aliases (which must be loaded by $HOME/.bashrc).

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Between the previous 163 columns I've written here in Linux Journal and the dozens of games I programmed and explored during the creation of my Wicked Cool Shell Scripts book, I've written a lot of Bash shell games. The challenge is to find one that's simple enough where a shell script will work, but isn't so simple that it ends up being only a half-dozen lines.

Advantech has launched a rugged, soldered “SOM-2569” SMARC module that runs Linux or Windows on an Apollo Lake SoC and offers WiFi and Bluetooth, dual GbE controllers, and triple display support. Advantech has posted preliminary specs for its first SMARC form-factor computer-on-module. Available with the full range of Intel’s Apollo Lake Atom, Celeron, and Pentium […]

Collabora today announced a new open-source project that promises to enable Linux-based desktop environments and window managers to be aware of VR (virtual reality).

ClickHouse is a distributed analytical column-oriented database management system. ClickHouse has the ability to perform queries in real-time, making it simple and easy to run applications that require analytical results. In this tutorial, we will show you how to install ClickHouse on a CentOS 7 VPS, as well as demonstrate some things that you can do in ClickHouse.

In Part 1, I laid out the structure for a multi-file C program called MeowMeow that implements a toy codec. I also talked about the Unix philosophy of program design, laying out a number of empty files to start with a good structure from the very beginning. Lastly, I touched on what a Makefile is and what it can do for you. This article picks up where the other one left off and now I'll get to the actual implementation of our silly (but instructional) MeowMeow codec.

The netstat and ss commands allow us to count Apache concurrent connections in Linux.