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We've already discussed the Linux cat command in one of our earlier tutorials. As you may be aware, the cat command is mainly used for displaying file contents in output. However, what you may not be aware of is that there exists a command that does exactly opposite of what cat does. The tool in question is tac, and in this tutorial, we will discuss its basics using some easy to understand examples.

Ariadne is a free, open source, feature rich cross-platform and security-focused Content Management System written in PHP language. In this tutorial, we will learn how to install Ariadne in Ubuntu 18.04 server.

Facebook today made two announcements about the software it uses to run its network. The first is that it's releasing Katran, the load balancer that keeps the social site from crashing and burning, as open source. In addition, it's offering details on the inner workings of the Zero Touch Provisioning tool it uses to help engineers automate much of the work required to build its backbone networks.

For those who don't know about this Linux distro, Fedora is one of those Linux distributions that comes released with cutting-edge software rather than staying on the same boat with other distributions that prefers stability. Fedora comes in three flavors: Workstation, Server, and Atomic. I'll be reviewing Fedora Workstation; used by many developers and users as their general purpose computing platform.

If you need a tool to inspect your network usage, without having to wire a proxy or install a more complex tool like Wireshark, iftop may be what are you looking for.

If you're looking after the security of Linux systems, these are the commands you must know.

As discussed in Part 1 and Part 2 of this series, Stratis is a volume-managing filesystem with functionality similar to that of ZFS and Btrfs. In this article, we'll walk through how to use Stratis on the command line.

Recently, it was discovered that a couple of apps in the Ubuntu Snaps store contained cryptocurrency mining software. Canonical swiftly removed the offending apps, but several questions are left unanswered.

In this tutorial we will show you how to install Drupal 8.5 on an Ubuntu 18.04 machine. There are multiple ways to install Drupal, this tutorial covers the steps necessary for installing Drupal 8.5 using Composer.

The OpenStack Foundation is no longer interested in only its own cloud platform, but also in enabling the broader ecosystem of open infrastructure. In a session at the OpenStack Summit, Thierry Carrez, VP of Engineering at the OpenStack Foundation outlined the step the foundation is taking to create what he referred to as a better defined OpenStack. The key theme of the redefinition is that OpenStack is no longer just about the OpenStack cloud platform project.OpenStack is moving from being about cloud projects to a new model that aims to be goal oriented.

When importing and dumping mysql databases, it can take a while to perform such tasks and common MySQL clients dont tend to handle large databases quite well, appearing to just hang. Instead its easier and more informative to perform these actions on the command line and pipe the output through Pipe Viewer, so you can see the progress and estimated completion time. This tutorial shows how to import and export large MYSQL Databses with Progress Bar.

If you're planning on using an AMD graphics card with Ubuntu 18.04, you have a couple of options. Because Bionic is an LTS release, you do have the option of using the proprietary AMDGPU-PRO drivers. The open source drivers that come with Ubuntu are probably better for gamers, though. They're already installed, and you can configure your system to receive constant performance-boosting upgrades from the latest Mesa releases. Either way, you're going to have great experience working with AMD on Ubuntu 18.04.

The title of this post may seem strange, but if you look a bit into Java EE's recent history, it will make sense.

Gitlab is a web GUI for git repositories with support for CI/CD, issue tracking & wiki. We have already discussed in detail, how we can install GITLAB on CentOS & Ubuntu systems. In this tutorial, we will discuss how we can backup & restore Gitlab.

I recently read Scott Nesbitt's article "Using less to view text files at the Linux command line" and was inspired to share additional tips and tricks I use with less. LESS env var If you have an environment variable LESS defined (e.g., in your .bashrc), less treats it as a list of options, as if passed on the command line.

Nextcloud could be the first step toward replacing proprietary services like Dropbox and Skype. In its simplest form, the Nextcloud server is "just" a personal, free software alternative to services like Dropbox or iCloud. You can set it up so your files are always accessible via the internet, from wherever you are, and share them with your friends. However, Nextcloud can do so much more.

Security researchers from Google and Microsoft have publicly disclosed today a third and fourth variant of the industry-wide issue known as the Spectre vulnerability.

Although VMware has been releasing VIO since 2015, having two versions of the offering is relatively new, with the first release of Carrier and Data Center editions taking place last September. The Carrier version is designed to address specific requirements by telecoms deploying NFV-based network services, especially as they prepare for the 5G world.

News briefs for May 21, 2018.

How well does the certification prepare you for the real world? To help illustrate that, this series features some of those who have recently passed the certification examinations. These testimonials should serve to help you decide if either Linux Foundation Certified System Administrator (LFCS) or Linux Foundation Certified Engineer (LFCE) certification is right for you. In this article, we talk with recently certified LFCE Hugues Clouâtre.