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When creating a website, it’s vital to remember that not only does it need to work and look great on the device you are creating it on, but on all the other devices, it might be used on too.

Mobile and tablet optimization is important not only for the user journey but from an SEO point of view too, and badly created mobile sites just don’t cut it anymore.

With more and more devices entering the market, you need to check any website you create is compatible across the board. One bad experience and users are likely to leave and not come back again, which can be catastrophic for a business, particularly if it is just starting out.

It’s vital to check how a site looks and behaves when browsed differently from how you would use it. A common mistake is to assume users only browse websites on mobile devices in portrait mode; they don’t; landscape browsing is common, especially if the user is used to watching video.

Here are some of our top tools for testing websites on devices without the need for an entire device library:

1. Multi-Screen Test

WhatIsMyScreenResolution offers a great little tool to test how your site will look on different devices easily, and it costs absolutely nothing. You put the URL and choose between desktop, mobile, tablet, and television and then the orientation. Each device can also be broken down into different sizes and resolutions (or you can enter your own), making it easier than ever to test what a site will look like on different devices.

2. Responsinator

Responsinator is another great tool to test how a site looks on other devices without dipping into your wallet. Put your URL in the top bar, and it will instantly show you what it looks like on generic devices. This is a great, easy to use tool, and you can click through any links on your site to check the usability of multiple pages. This site is free, but if you want to “create your own” template, you need to sign up.

3. Google Dev Tools

Google Dev Tools is one of the most commonly used free tools. Add it to Chrome, and you can see how your site looks in a multitude of different screen sizes and resolutions. You can simulate touch inputs, device orientation, and geolocation to test how they work. It’s great to easily spot problems using their remote debugging tool to view, change, debug and profile a page’s code directly from your laptop or computer while viewing it on your mobile device.

4. Browser Stack

Browser Stack allows you to test your site on over 2,000 real devices and browsers, enabling you to see in real-time how your site looks. It is no hassle to set up, and it can be seamlessly integrated into your setup. As it tests on real browsers on real machines, you know the results are more reliable and accurate. It also enables you to debug in real-time using their pre-installed developer tools for ease of editing. The tests are all run securely on tamper-proof physical devices and are wiped clean of all data after each session, so you don’t need to worry about security being compromised.

5. TestComplete Mobile

TestComplete Mobile allows you to create and run UI tests across real mobile devices, virtual machines, and emulators. You can test both mobile device layouts and apps with script-free record and replay actions. This can help you to edit and fix any potential issues that may arise during the tests. Due to them being conducted on real devices, you know it is less likely to have errors in the system than a simulated device. This is free for 30 days then can get pricier, so make sure you take advantage of the trial and try the service before committing to it.

6. Sizzy

Sizzy is a great tool for checking sites, and it has a host of features to assist you. You can rotate the screen between portrait and landscape, filter by OS and device type, switch themes, and take screenshots. These little things mean it’s a super easy to use and convenient tool. It claims to simulate each device’s viewport and user agent, meaning the results are the same as what you would actually see on that phone/ tablet, etc. It can’t simulate different browser rendering engines however, so there’s a chance there might be some minor differences compared to the actual thing. Sizzy offers a free trial or has different price packages starting at $5 per month.

 

Featured image via Unsplash

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If you were paying close attention to your IT department around the 8th of December, you might have heard some quiet sobbing and the occasional wail of, “Why? Why?! WHY?!” Now, it was the year 2020, so this might have seemed normal to you, but it’s actually something of a problem that could affect your business: CentOS is pretty much dead.

For the non-total-nerds among us, here’s the skinny: CentOS is a Linux-based operating system, typically used on servers. CentOS has been incredibly popular, and quite a few businesses run on it. But now, that’s changing.

CentOS is a Linux-based operating system, typically used on servers…But now, that’s changing

CentOS used to be released in thoroughly tested versions, the latest being CentOS 8. CentOS 8 was released in September of 2019 and was supposed to be supported for ten years. Now, it’s been decided that CentOS will no longer have versioned releases, opting for a rolling-release style of updates. That means there’ll be one version that constantly gets new software.

That’s cool in theory, but it means the operating system will be less stable overall. Essentially, it’s going to be used as a development branch of / testing ground for Red Hat Enterprise Linux and is no longer its own OS. If you have CentOS-based servers, you should migrate to another OS sooner rather than later.

And I just got my own CentOS-based VPS set up the way I wanted it.

Wait, What Does Red Hat Have To Do With This?

Here’s the short, short version of the history of CentOS: Red Hat (an OS developer) has two Linux distributions of its own and has had for a long time. There’s the free and community-focused Fedora and the business-focused highly expensive Red Hat Enterprise Linux (AKA RHEL).

Funny story: RHEL, despite its expensive licenses, is still mostly made from open source code, which anyone can access and use. And it’s a good OS, particularly for people who like stability.

In 2004, some smart people took all the open-source parts of RHEL and made a brand new, nearly identical operating system with it: the Community Enterprise Operating System, or CentOS. Basically, people could download and use an enterprise-level server OS for free. All the documentation for RHEL was compatible, and you could get support from the community.

It was the perfect alternative for anyone who didn’t have the budget for expensive software licenses.

In 2014, Red Hat offered to partner with the CentOS community. The idea was basically this: “It’s pretty much the same software. If our company and your community work together, both our products will be better! We make our money from enterprise customers, anyway.”

Most importantly, with Red Hat doing a lot of the heavy lifting in terms of updates and support, the CentOS community could focus on growing in other ways.

Red Hat pinky swore [citation needed] that they were in this for the long haul, and CentOS did continue to flourish. You know, until 2020.

Well, So Much For Pinky Swearing

Red Hat must have eventually decided that having a popular free version of its own enterprise software and managing it themselves no less — wasn’t that good for business. So they all but shut the project down.

Well, technically, they just changed how it operated. Instead of producing tested, production-ready versions, CentOS is merely a testing ground for RHEL. It is no longer, in my opinion, a good option for anyone who wants to run a stable server.

Current and Future CentOS Alternatives

So if you jumped on the CentOS 8 bandwagon, what should you put on your physical and virtual servers now? Well, you’ve got options.

Debian / Ubuntu

For those who don’t mind going to a very different kind of Linux, Debian has been the picture of OS stability and sysadmin-friendliness for a long time. If you want more frequent software updates, the Debian-based Ubuntu Server is popular and pretty good.

Oracle Linux

Yes, that Oracle has a RHEL-compatible Linux distribution of its own. But it’s not a clone, exactly. I mean, this is Oracle. It’s set up to use their tools and ecosystem, so I hope you like Oracle products. But hey, the OS itself is free!

ClearOS

ClearOS is another RHEL-compatible OS that’s mostly doing its own thing, though I’m not entirely sure what that thing is. Does the company have some deal with Hewlett-Packard? Anyway, they do have a free community edition and paid editions for home and business use.

The CloudLinux RHEL Fork

This is an upcoming release from the makers of CloudLinuxOS. It looks like they intend to load the new RHEL-based OS with some of their own tools, such as reboot-less server update tech. The first release is intended to be a more or less drop-in replacement for CentOS 8.

Rocky Linux

So the community that made and loved CentOS in the first place is, to say the least, ticked. They are so ticked that Greg Kurtzer (a co-founder of CentOS) has decided to do it all over again by making Rocky Linux and keep it in the community this time.

Again, the goal is to make a re-build of RHEL, a drop-in replacement for CentOS (at least for now). Eventually, the goal is to migrate from CentOS to Rocky Linux as easy as using a single, one-line command. The ETA for initial release isn’t quite set in stone, but I can personally vouch for how hard the community is working.

[See, full disclosure here… after writing this article, I joined the Rocky Linux documentation team.]

So Yeah, You Have Options

Some are out now, and others will be soon. Again, CentOS 8 will be supported until the end of 2021. CentOS 7, weirdly, will be supported until June 2024.

Migration shouldn’t be too complicated. Still, a pain in the rear that we have to do this at all, though.

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The post How CentOS Became 2020’s Final Victim first appeared on Webdesigner Depot.


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There are dozens of factors that influence the UX of your site, app, or game. Most of them are beyond your control; user connection speed, end-system resources, even browser technology is all out of your hands. So when you do have the opportunity to influence your project’s infrastructure, you should seize it.

The world’s fastest muscle car can’t perform at its best when traffic is gridlocked bumper to bumper; likewise, the most finely tuned website can’t meet its potential running on shared hosting.

If you want your website, application, or service to run quickly and securely, maximizing both UX and SEO, then you need to look at the bare metal servers from OVHcloud.

Bare Metal Performance

Bare metal (or dedicated) servers aren’t uncommon. Still, most hosts only offer a single type of server, expecting small startups to pay for resources at the same rate as global giants, which can make dedicated hosting prohibitively expensive.

OVHcloud is different; it offers a range of bare metal server products optimized for a wide variety of challenges. That means small startups can invest in fast, easily scalable solutions that meet the most demanding security requirements without breaking the bank.

Whatever your aims, there’s a different OVHcloud solution configured for you:

OVHcloud Rise

Rise is the perfect option for a website, or web app hosting. With its low entry-cost, Intel-powered performance, bundled DDoS protection, and simplified administration, Rise is the natural choice for your first step into bare metal servers.

OVHcloud Advance

To meet SMEs’ need for reliable infrastructure to run mission-critical applications, OVHcloud configured Advance. From in-house CRMs to web-facing SaaS products, Advance is a solid foundation upon which to build your business.

OVHcloud Storage

Storage is ideal for storing large amounts of data securely. Hosting data on standard servers is a colossal waste of resources; with OVHcloud’s Storage product you can host up to 504TB and seamlessly access it via a performance-tuned server.

OVHcloud Infrastructure

For large companies with thousands of employees, global non-profits, colleges, and even local governments, OVHcloud Infrastructure offers scalability and flexibility beyond the average dedicated server.

OVHcloud High-End

For web apps that are leveraging cutting edge technology like machine learning and big data, OVHcloud’s High-End product is a no-compromise custom solution, the humdinger of bare metal servers, with every conceivable option available.

OVHcloud Game

If you’re developing video games, then lightning-quick, reliable streaming servers are essential. OVHcloud’s Game product delivers the type of speed your customers demand, with massive performance gains over comparable bare metal servers.

How to Choose a Bare Metal Server

It’s easy to get bogged down in detail, especially if this is your first foray into bare metal servers.

But here’s the good news: every OVHcloud bare metal server is a massive boost in performance over shared web hosting. That’s because, with a dedicated server, all of the server’s resources are…dedicated; that is, you don’t have to share with anyone. Shared hosting is pot-luck: You might wind up on a server with thoughtful users who don’t eat up all the resources, and you might end up on a server with one selfish user who hogs the processes and compromises the security. With a bare metal server, that’s not an issue.

Choosing a bare metal server is a two-step process. The first step is to think about what you intend to use it for:

Are you going to store a lot of data? If so, think about OVHcloud’s Storage product. But a lot of data doesn’t mean a WordPress blog. Let’s say you’re a polling company, collating millions of records that you hope to analyze to predict political movement; that requires a lot of storage. On the other hand, all servers have some storage. OVHcloud’s Rise product comes with 500Gb and can be configured with more. So if you’re planning to host something the size of a blog, then OVHcloud’s Storage might be using a sledgehammer to crack a nut.

The second step is to ask how complex the operations you’re going to ask the server to perform will be:

Hitting up a database to retrieve some data is not a complex operation. Even something like a complex search isn’t too taxing. If that’s the kind of process you expect to perform, OVHcloud’s Rise is more than adequate. But if you’re manipulating large amounts of data, like resizing hundreds of raster images dynamically; or using facial recognition to search through millions of biometric data records; or even managing your advertising application serving millions of ads to sites across the web; in those cases, you need the sort of performance OVHcloud’s Infrastructure product delivers.

OVHcloud’s products are all scaleable. Its High-End bare metal server product is entirely customizable. Whatever you choose, and however your needs change over time, you can be confident you’re running the optimum server for your project.

Why Choose OVHcloud

There are a mind-boggling array of processors, and OS, and a seemingly infinite — and increasingly expensive — amount of hardware on offer on the web. OVHcloud radically simplifies running a bare metal server by delivering a range of popular packages, tailored for everyday uses, that are both customizable and scaleable.

What OVHcloud delivers is a clear choice, letting you choose the right server for your product.

Whether you need lighting fast response times to maximize your SEO or the space to store a digital archive of the world’s most important art, for reliability and choice, opt for OVHcloud bare metal servers.

 

[— This is a sponsored post on behalf of OVHcloud —]

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Set Up Kubernetes Cluster

First, we need a Kubernetes cluster. You may use an existing one or set up a new one. For this tutorial, we chose to use GKE (Google Kubernetes Engine).

Just follow the quick start to create a cluster. To save your money, the default pool with only one node is sufficient for our testing. For node image type, use the default Container-Optimized OS; for machine type, please select one with at least 8G mem. After creating the cluster, go ahead to configure kubectl to connect to the cluster following this guide.

Source de l’article sur DZONE


Motivation

In software development one often finds themselves investigating issues. Depending on the type of the application, various sources of informations can be available: 

  • screenshots
  • verbal description of the problem
  • metrics
  • logs (application, framework, container, application server, OS, …)
  • thread and heap dumps

In an ideal world, the exact inputs that caused an issue and the code that failed would be immediately available. In a typical case though, it can take hours of digging through logs and code to understand what happened. Would it not be nice to avoid that?

Source de l’article sur DZONE

The common theme in this month’s collection of new tools and resources is “things that help you show off your work.” Many of these tools are made to help you better web products or apps or showcase designs with others.

Here’s what new for designers this month.

Naturaltts

Naturaltts is an online text to speech converter, that allows you to download an mp3 recording. The tool has more than 60 voices to choose from in six languages. There’s a free plan for personal use (based on characters converted) and affordable paid plans for higher volumes and commercial users. One application of this tool is voiceover for videos or tutorials.

Handz

Handz is a library of hands with different gestures in three-dimensional shapes. The collection includes 12 gestures with nine skin colors, and three different sleeve types. Put all that together and you have 320 potential combinations that you can use for projects. The library is completely free and works in a variety of formats with different tools.

Isoflow

Isoflow allows you to create isometric diagrams for presentations and illustrations with ease. You can edit and then export diagrams for print or website use, thanks to vector rendering.

Device Shots

Device Shots is a small web app that helps you generate a high-resolution device mockup using a screenshot of your website or mobile application. It supports almost every device type you can think of and resizes for social media platforms.

Barchartrace

Barchartrace is a simple MIT open source bar chart generator. Use it to create some of the animated charts you see on social media. Just insert your information (upload via CSV file), choose animation settings, and go.

Zettlr Markdown Editor

Zettlr is a free and open source markdown editor for Mac OS. Zettlr supports simple notations, references, includes a dark mode, and tagging. It’s made for note takers who need a tool to amp up their projects, and is used primarily in higher education.

CSS Leaning Card Effect

The CSS Leaning Card Effect replicates the bookshelf feel you get when rectangles lean with a shadow against planes. Lynn Fisher does it in the pen with code that you can see and work on with your own images.

Lemon.io

Lemon.io is a tool that matches you with freelance developers to get projects moving more quickly. You are guaranteed a match in 24 hours and there is no risk if the match doesn’t work out. Just tell Lemon.io what you need and the algorithm will match you with a dev from the database. Prices for development through the platform start at $35 per hour.

Papercups

Papercups is a customer messaging tool that lets you chat in real-time. The customizable widget works with your favorite tools, such as Slack and Gmail, and is free to use. Chat apps are one of the most in-demand website features right now.

CSS Click to Animate Gif

Christian Heilmann has created a great guide/experiment in pure CSS that adds a play button on top of animated GIFs so that users can control the motion. He developed the concept because GIFs can get overwhelming and annoying. Learn how he did it and see it in action.

3D Book Image Generator

Here’s another little bit of CSS magic with a 3D Book Image Generator. Just input your image and set some specifications and get a 3D book cover image that you can use in projects. (There’s also an accompanying tutorial if you want to learn how to generate the CSS on your own.)

Luckysheet

Luckysheet is an online spreadsheet – it’s a lot like Microsoft Excel – with powerful data functions and tools. It’s user-friendly and open source. It even has quite a few built-in mathematical formulas and supports various table types.

RevKit

RevKit is a design system UI kit that works with Sketch, Figma, and Adobe XD. It includes plenty of organized components that you can pop right into designs to help get them started faster. It also includes a style guide, elements, and form controls. The download is free.

Card

Card allows you to store social media profiles, websites, and files in a customized profile. Share it in one click. Replace awkward contact exchange and multiple usernames with a simple QR code or link.

Scale Nucleus

Scale Nucleus helps visualize data, curate interesting slices within your dataset, review and manage annotations, and measure and debug model performance. This tool claims to be “the right way” to develop ML models.

Previewed

Previewed is a mockup generator to create beautiful promotional graphics for your app. Browse a variety of templates, pick one, customize, and download your design to show off.

NSFW Filter

NSFW Filter is a browser extension that blocks images that aren’t safe for work. The best part is that it runs locally in-browser and doesn’t access any of your data. Plus, it saves you from on-the-job embarrassment.

ColorFlick for Dribbble

ColorFlick for Dribbble is another browser extension that makes it easy to copy hex codes from the tool to your clipboard with ease. You can also create palettes you can share from your favorite shots using Coolors.

Tabler Icons

Tabler Icons is a collection of more than 550 SVG icons that you can customize. Change the color, size, or stroke width with on-screen controls and then click to copy the icons you want to use. It’s that simple!

Teenyicons

Teenyicons might be some of the cutest icons out there. This collection includes minimal 1px icons in outline or solid fills. And there are plenty of icons to choose from. Adjust the size and grab the ones that you need for projects.

Basicons

Basicons is a set of simple icons for product design and development. Plus, they are updated weekly.

Chozy Mermaid

Chozy Mermaid is a super funky novelty typeface to close out summer. The characters feature beach themes within slab characters. It might be hard to find an application for this one, but it is too fun not to share.

Dotuku

Dotuku is a dingbats font with a back to school theme. The limited character set features filled and outline styles that are perfect for classrooms.

Margin

Margin is a fun retro style typeface with a 1970s vibe. It’s a “chubby serif” with 60 characters and 58 glyphs.

Rollanda

Rollanda is a signature-style script with a thicker weight and rough stroke. The character set is pretty robust.

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The version control system is a way to manage files/directories to track file changes so that a specific version of files can be tracked later without conflicts.

Git is one of the distributed version control systems that help in:

Source de l’article sur DZONE

Learn more about Linux runlevels — the right way!

You can think of Linux runlevels as different "modes" that the operating system runs in. Each of these modes, or runlevels, has its own list of processes and services that are either turned on or off. From the time Linux boots up, it’s always in some runlevel.

This runlevel may change as you continue to use your computer, depending on what kind of services the operating system needs access to.

Source de l’article sur DZONE

Learn more about establishing an open-source program office.

It feels like we don’t have a strong understanding of open source itself. Some scars have come from working with open source in an environment filled with proprietary software. When the words “open” and “source” were brought together, there was a visceral reaction. People were skeptical of it. Some even despised it.

There’s no one-size-fits-all way to bring open source into your ecosystem. But it does require a strong champion. That’s why Lee Calcote (@lcalcote) advocates for creating a specific office.

Source de l’article sur DZONE

Learn more about Git commits.

Commits are fundamental to Git, but not all developers have a comprehensive understanding of what a commit actually is and how it gets applied to your project.

In short, a commit is a snapshot of your Git repository at one point in time. In this beginner Git tutorial, we will dig into the journey of creating a commit.

Source de l’article sur DZONE