Docker is a containerization platform that simplifies the packaging and execution of applications. Containers run as isolated processes with their own filesystem but share their host’s kernel. Docker has risen to prominence as a way of implementing reproducible development environments and distributed deployment architectures. Node.js is the leading JavaScript runtime for backend development. Successfully launching a Node.js web service requires you to have an environment with the runtime installed, your application code available, and a mechanism that handles automatic restarts in case of a crash....

Ever wanted to access an online web service, only to find it’s only available to those people living in the United States? Read on to find out how you can get around this restriction by changing one simple setting in Windows. Changing Your DNS Settings Press the Win + R keyboard combination, then type ncpa.cpl into the run box and hit enter. Then right-click on your current network adapter and choose properties from the context menu....

DevSpace is an open-source tool that helps developers quickly deploy cloud-native applications to Kubernetes clusters. It abstracts away much of the traditional Kubernetes complexity so you can get back to writing code. DevSpace is platform-agnostic and works with clusters ranging from your local machine to popular managed public services. The tool is a CLI that automates operations using Kubernetes APIs. You don’t need to install anything inside your cluster to use DevSpace....

Linux server administration would be much easier with a point-and-click interface that did all the hard work for you behind the scenes, so you could focus on your job: managing servers. That’s where Cockpit comes in. Cockpit provides a web-based dashboard so you can monitor and update your Linux systems. I find with Cockpit, remote server management is a breeze. Let’s take a look at what Cockpit has to offer:...

You’ll lose some analog input—for example, the joysticks will just function as arrow keys that are on or off without the usual range of sensitivity—but for some games, that’s not a huge issue. If you’re just looking to play Steam games with a controller, Steam already has great built-in tools for remapping controllers in its Big Picture Mode and will be a much easier solution than anything else listed here....

Restart Your Mac Using the Apple Menu The quickest (and easiest) way to restart your Mac is by using the power options from the Apple menu on the desktop. First, select the “Apple” icon at the top-left corner of the computer’s interface. RELATED: How to Shut Down Your Mac Using Terminal In the menu that appears, select the “Restart” button. Your Mac will now restart. Give your computer a minute to come back up and most of your lag or small issues should (hopefully) be fixed....

Modern web browsers allow websites to ask for your location through a prompt. If you’re tired of seeing these prompts, you can disable them and websites won’t be able to ask for your location anymore. Websites that ask for your location usually allow you to plug in a zip code or address instead. You don’t need to provide precise access to your location via your web browser’s location services, so you likely won’t lose much functionality by turning this off....

Layer Masks, like many parts of Photoshop, are rarely used because they aren’t intuitive or immediately easy to grasp. Learn about them in this How-To, with our video tutorial, and read how and why “Layer Masks” are so different. They provide an interesting way to dynamically transform text, brush strokes, vectors, or any sort of layer with ease, and really aren’t very hard to use or understand. Simply read on to see how you can start incorporating Clipping Masks into your Photoshop technique....

grep is a command line search utility for Linux that will print out lines in files that match a pattern or regular expression. It’s also useful to invert matches, which will filter out all lines in a file that contain the given string. Negative Matching With grep To use negative matching in grep, you should execute the command with the -v or –invert-match flags. This will print only the lines that don’t match the pattern given....

What Are Reactions? Reactions in Animal Crossing: New Horizons are like visual representations of emojis (waving, cheering, fainting, etc.). Your Island Residents will even respond to your reactions with their own, providing a level of interactivity and connectedness to the system. You can pull up the reaction menu in-game by pressing “ZR” on your right joy-con controller and then selecting the “A” button on the reaction you want to use....

When you’re shooting portraits, the soft background look keeps distracting backgrounds from ruining a shot. If you’ve not shot correctly, here’s a quick, simple tip to pop out your foreground and keep the most important parts the most visible. Softening Backgrounds Using Photoshop (GIMP Friendly How-To) Sometimes you get a shot that doesn’t work as well as you would like. When this example shot was taken, the subject came out great (if you don’t understand why, you know even less than your author about Star Trek), but the background didn’t add anything to the shot, and it was too late to go back and retake the image with a telephoto lens to get a nice, soft background....

If you’re less than delighted with the default screensaver pack on the Kindle relief is just a simple hack and a reboot away. Read on to learn how to apply a painless jailbreak to your Kindle and create custom screensavers. Note: We originally published this article last year, but we’ve updated it to work with the latest version of Kindle, so we’re republishing for everybody. Installing the jailbreak and the screensaver hack to replace the default screensavers is so simple we promise you’ll spend 1000% more time messing around making fun screensaver images than you will actually installing the hack....

We’ve talked about how to use LVM before, but what if you wanted to accomplish the same tasks only with a comfortable graphical interface? HowTo Geek dives into how to manage LVM drives with a GUI. Image by marfis. Introduction The Logical Volume Manager or LVM, has already been covered on HTG as well as why you should use it. As LVM is becoming more and more mainstream, where some of the major distribution players like CentOS and Ubuntu with their latest 12....

Whether you’re a writer, a gamer, or an enthusiast, mechanical keyboards are the crème de la crème of typing solutions. Not only do they provide superior feedback and a satisfyingly clicky sound, their more substantial composition and materials tend to hold up better over time. These qualities make mechanical keyboards a must-have for serious Windows and Mac users. Not all keyboards are created equal, however. Take this Logitech POP Keys Wireless Mechanical Keyboard for instance....

Infra App is a desktop Kubernetes client for Windows, macOS, and Linux. It offers a clean and simple UI that lets you monitor clusters and inspect the resources within them. Infra App is free to use with a single Kubernetes cluster. You can access all the app’s features without entering any payment details. The Pro plan is priced at $100/year. It can connect to an unlimited number of clusters and freely switch between them....

After you install the Windows 7 Service Pack 1 that we mentioned yesterday, you might be wondering how to reclaim some of the lost drive space—which we’ll show you how today—but should you actually do it? Note: If you haven’t installed the new SP1 release yet, be sure to read our post explaining what it entails before you do. Spoiler: it’s mostly bugfixes. Wait, What Now? It’s simple: installing the service pack will take up a bunch of extra space, because Windows is going to create a ton of backups of the pre-service pack files in case you want to roll everything back and uninstall the service pack....

If you keep your Wi-Fi router’s SSID hidden, it might make you feel safer, but it doesn’t actually help with security—and likely serves as an unnecessary inconvenience. Here’s why. Hidden SSIDs Can Be Found Easily Many Wi-Fi routers include an option to “hide” or make “invisible” their SSID (short for “service set identifier”), which means the name of your Wi-Fi network won’t show up when a device automatically scans for nearby access points to connect to....

However, all of these products cater to a specific audience. Some are built with massive screens and premium cameras for crisp video calls, a few remove cameras for an affordable price tag, and others still attempt to be a jack-of-all-trades. Before you set out on a journey to find a smart display for your home, there are a few things you should consider. First and foremost—do you need a camera built into your smart display?...

Audacity novices often start with lofty project ideas, but sometimes they lack the basics. Knowing how to cut and trim tracks is basic audio editing and is a fundamental starting point for making more elaborate arrangements. For this exercise, I’ll be making a ringtone from a Castlevania: Symphony of the Night track. I have the original CD and used that so I started with better quality audio than an MP3....

Losing your hardware is bad enough, but what happens to your personal data? Could a thief with your phone, tablet, or laptop access your apps and files? It depends on the device you lost—unfortunately, most Windows PCs aren’t encrypted. Thieves can always erase your device and keep using it—unless you enable something like Activation Lock on an iPhone or iPad—but they can’t get at your personal data if your device’s storage is encrypted....