Docker is everything but pretty; let's try to fix that. Here's a rundown of some GUI options available for Docker.

OpenGL is a well-known standard for generating 3-D as well as 2-D graphics that is extremely powerful and has many capabilities. OpenGL is defined and released by the OpenGL Architecture Review Board (ARB). This article is a gentle introduction to OpenGL that will help you understand drawing using OpenGL.

The LVM is a powerful storage management module which is included in all the distributions of Linux now. It provides users with a variety of valuable features to fit different requirements. The management tools that come with LVM are based on the command line interface, which is very powerful and suitable for automated/batch operations. But LVM's operations and configuration are quite complex because of its own complexity. So many software companies including Red Hat have launched some GUI-based LVM tools to help users manage LVM more easily. Let’s review them here to see the similarities and differences between individual tools.

I've been playing around with the Raspberry Pi Zero W lately and having so much fun on the command line. For those uninitiated it's a tiny Arm computer running Raspbian, a derivative of Debian. It has a 1 GHz processor that had the ability to be overclocked and 512 MB of RAM, in addition to wireless g and bluetooth.

A rundown of the biggest, most expansive and impressive games that you can run entirely in your Linux shell. The original UNIX operating system was created, in large part, to facilitate porting a video game to a different computer. And, without UNIX, we wouldn't have Linux, which means we owe the very existence of Linux to...video games. It's crazy, but it's true.

An introduction to PKI, TLS and X.509, from the ground up. Public Key Infrastructure (PKI) provides a framework of encryption and data communications standards used to secure communications over public networks. At the heart of PKI is a trust built among clients, servers and certificate authorities (CAs). This trust is established and propagated through the generation, exchange and verification of certificates.

UEFI (Unified Extensible Firmware Interface) is the open, multi-vendor replacement for the aging BIOS standard, which first appeared in IBM computers in 1976. The UEFI standard is extensive, covering the full boot architecture. This article focuses on a single useful but typically overlooked feature of UEFI: secure boot.

Wildcards in bash are referred to as pathname expansion. Pathname expansion is also sometimes referred to as globbing. Pathname expansion "expands" the "*", "?", and "[...]" syntaxes when you type them as part of a command, for example: $ ls *.jpg # List all JPEG files $ ls ?.jpg # List J

At times, we need to write shell scripts that are interactive and user executing them need to monitor the progress. For such requirements, we can implement a simple progress bar that gives an idea about how much task has been completed by the script or how much the script has executed. To implement it, we only need to use the “echo” command with the following options and a backslash-escaped character.