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A system call is a programmatic way a program requests a service from the kernel, and strace is a powerful tool that allows you to trace the thin layer between user processes and the Linux kernel. To understand how an operating system works, you first need to understand how system calls work. One of the main functions of an operating system is to provide abstractions to user programs. An operating system can roughly be divided into two modes: read more

In this article, we will see how to create a new Ubuntu EC2 Instance on AWS. EC2 (Elastic Compute Cloud ) is part of the “Compute” service in AWS (Amazon Web Services). EC2 is nothing but a VM (Virtual Machine) in AWS.

In 2004, the Open Clip Art Library (OCAL) was launched as a source of free illustrations for anyone to use, for any purpose, without requiring attribution or anything in return. This site was the open source world’s answer to the big stacks of clip art CDs on the shelf of every home office in the 1990s, and to the art dumps provided by the closed-source office and artistic software titles. read more

COPR is a collection of personal repositories for software that isn’t carried in Fedora. Some software doesn’t conform to standards that allow easy packaging. Or it may not meet other Fedora standards, despite being free and open source. COPR can offer these projects outside the Fedora set of packages. Software in COPR isn’t supported by […]

Postgres is an open-source relational database that has many advanced features like enterprise-class performance, triggers, Atomicity, Consistency, Isolation, and Durability. This tutorial shows how to install and configure the latest PostgreSQL version from the Official Postgres Ubuntu repository.

I have been a huge Mac fan and power user since I started in IT in 2004. But a few months ago—for several reasons—I made the commitment to shift to Linux as my daily driver. This isn't my first attempt at fully adopting Linux, but I'm finding it easier than ever. Here is what inspired me to switch. read more

Automad is a free, open-source and flat content management system written in PHP language. In this tutorial, we will show you how to install Automad CMS on Debian 10 using Apache web server.

Commands in (conditional) Chains – the latest Seattle rock sensation? Preview 5 of Microsoft's PowerShell 7 dropped last night, which means that final release is lumbering ever closer.…

ionCube loader is a PHP extension that is used to decode PHP scripts encoded by the ionCube PHP Encoder package. In this tutorial, we will show you how to enable the ionCube loader in PHP on CentOS 8.

Aaeon’s rugged, $356 and up “VPC-3350S” industrial NVR PC runs on an Apollo Lake SoC and offers 4x GbE ports with PoE and up to 4x mini-PCIe. An in-vehicle model adds GPS, CAN, G-sensor, 3x RS-232, and wide-range power with ignition. Aaeon has launched a compact, rugged network video recorder (NVR) system with four GbE-speed […]

Today, Mozilla Co-Founder and Chairwoman Mitchell Baker announced that Mozilla Foundation Board member Bob Lisbonne has moved to the Mozilla Corporation Board; and as part of a planned, phased transition, … Read more The post Longtime Mozilla board member Bob Lisbonne moves from Foundation to Corporate Board; Outgoing CEO Chris Beard Corporate Board Term Ends appeared first on The Mozilla Blog.

'More changes than any version since years' in Tor-touting OS. Tails has released version 4.0 of the privacy-focused Linux distro, based on Debian 10, with numerous feature and usability improvements.…

Bash is a powerful programming language, one perfectly designed for use on the command line and in shell scripts. This three-part series, based on my three-volume Linux self-study course, explores using Bash as a programming language on the command-line interface (CLI).

Bash is a powerful programming language, one perfectly designed for use on the command line and in shell scripts. This three-part series (which is based on my three-volume Linux self-study course) explores using Bash as a programming language on the command-line interface (CLI).

The Tails project has announced the release of Tails 4.0, the first version of Tails based on Debian 10 (Buster).

My first steps into Linux happened around 2003 or 2004 when I was a student. The experiment lasted an hour or two. Being used to Windows, I was confused and quickly frustrated at having to learn the most basic stuff again. read more

People who have experience programming in languages like C or FORTRAN are familiar with the concept of arrays. They’re basically a contiguous block of memory where each location is a certain type: integers, floating-point numbers, or what-have-you. The situation in Java is similar, but with a few extra wrinkles.

Bash is a powerful programming language, one perfectly designed for use on the command line and in shell scripts. This three-part series, based on my three-volume Linux self-study course, explores using Bash as a programming language on the command-line interface (CLI). read more

Bash is a powerful programming language, one perfectly designed for use on the command line and in shell scripts. This three-part series (which is based on my three-volume Linux self-study course) explores using Bash as a programming language on the command-line interface (CLI). read more

Users will be able to buy own licences and administrators cannot prevent it. Microsoft will allow "self-service purchase and license management capabilities" for Office 365 users, initially for its Power Platform low-code services, PowerApps, PowerBI and Flow.…