Servers Page 2

How to Debug Kubernetes “ImagePullBackOff” Errors

Kubernetes clusters can encounter several issues while trying to pull your container images. When an error occurs, your Pods will enter an ImagePullBackOff state. Here’s how to debug this common but cryptic message so you can…

James Walker Aug 20th, 2021

How to Run PHPMyAdmin in a Docker Container

PHPMyAdmin is a popular administration interface for MySQL and MariaDB databases. It lets you interact with your schemas, tables, and data using a web browser.

James Walker Aug 18th, 2021

How to Use GitLab’s New Helm Chart Repository

GitLab 14.1 added Helm charts to the software’s growing list of supported package repository formats. You can now store and share your charts using your GitLab projects, without a separate Helm registry….

James Walker Aug 16th, 2021

How to Automate MySQL Database Migrations With Skeema

Skeema is an open-source CLI tool that lets you synchronize MySQL database schemas across multiple hosts. It works with plain SQL files containing CREATE TABLE statements.

James Walker Aug 10th, 2021

How to Scale Docker Containers Across Servers Using Kubernetes

Docker is a developer-oriented containerization platform that lets you package applications as standalone containers. They’ll run anywhere a compatible container runtime is available.

James Walker Jul 28th, 2021

How to Deploy Static Websites For Free With Surge.sh

Surge.sh is a free static website host which you interact with from your command line. It makes it quick and easy to get new sites and apps online, either manually or as part of your CI build process. Here’s how to get starte…

James Walker Jul 22nd, 2021

How to Migrate Away From GitLab Managed Kubernetes Apps

GitLab Managed Apps was a feature of the platform’s Kubernetes integration that provided one-click installation of common cluster apps. This iteration of the feature was deprecated during the GitLab 13 release cycle and remov…

James Walker Jul 22nd, 2021

How to Use ltrace to Trace Library Calls

Interesting in fixing those library errors and bugs you observe when installing a cool new program on Linux? Check out this article which shows how to use ltrace, arming you with the tool needed to debug library calls….

Roel Van de Paar Jul 20th, 2021

How to Work with Shared Object (Library) Dependencies in Linux

Error while loading shared libraries: the dreaded error that every Linux user will sooner or later run into. Something went wrong with the shared object dependencies (the libraries) used by the executable. Learn how to fix su…

Roel Van de Paar Jul 16th, 2021

How to Self-Host a Collaborative Cloud with Nextcloud and Docker

Nextcloud is an open-source file-sharing and collaboration platform to rival services like Google Workplace and Microsoft 365. Nextcloud lets you self-host your own collaborative cloud, so you don’t need to shackle yourself t…

James Walker Jul 14th, 2021

How To Migrate Servers To The Cloud Easily With AWS’s Application Migration Service

AWS’s new Application Migration service is a tool for performing Lift-and Shift migrations, where servers are copied entirely automatically, and lifted to the cloud, where application service is transferred over. It’s easy to…

Anthony Heddings Jun 18th, 2021

How to Disable & Fix Password Expiration in Windows Server

Windows Server passwords expire. After a while, your password will be invalid, and you will need to “contact your IT administrator” to reset it manually. But what happens when you are the IT administrator?…

Anthony Heddings Jun 8th, 2021

Asserts, Errors, and Crashes: What’s the Difference?

Computer problems. We all have them sooner or later. Knowing the ins and out of errors, asserts, crashes, and more is vital to understanding more about the problem at hand. Learn all about it.

Roel Van de Paar Jun 7th, 2021

How to Accept Donations on Your Website

Accepting donations online is a big way for people to make money. Whether you’re a nonprofit looking to crowdfund, a startup looking to grow, or an open-source software project looking for support, you’ll want a way for peopl…

Anthony Heddings Jun 7th, 2021

Debugging with GDB: Digging Deeper

The powerful GNU Debugger GDB returns to the front stage. We dive deeper into stacks, backtraces, variables, core dumps, frames, and debugging than ever before. Join us for an all-new, more advanced introduction to GDB….

Roel Van de Paar Jun 2nd, 2021

How to Accept Apple Pay On Your Website

Apple Pay is an accelerated checkout option that makes it very easy to buy products, both in person and on the web. It’s easy to integrate on most e-commerce platforms, and improves customer experience on your online store….

Anthony Heddings May 28th, 2021

How to Enlarge tmpfs Space in Linux

Have you ever heard of tmpfs in Linux? It is that small temporary file system residing within memory and installed by default on Linux distributions. Ultra-fast but usually limited in size. Can one grow it easily? Find out &a…

Roel Van de Paar May 27th, 2021

Linux: How to Use dpkg to Fix apt When It Breaks

Have you ever broken apt? For seasoned Linux professionals, it’s quite common (about every half year) to unwittingly break apt. If you know a few commands in dpkg, you can often fix the issue more easily! Find out how….

Roel Van de Paar May 26th, 2021

How Linux Signals Work: SIGINT, SIGTERM, and SIGKILL

Software interrupts on Linux and Unix systems are made via signals. There are many different Linux signals, but a few stand out and are important to understand and know: SIGINT, SIGTERM, and SIGKILL. Here’s how they work….

Roel Van de Paar May 20th, 2021

How To Manage Linux Servers With Cockpit

Managing a network of Linux servers used to require using a terminal emulator to ssh into each of your servers. To update a local firewall rule, system administrators had to learn arcane iptables commands to add the right inc…

Jim Hall May 17th, 2021

How to Self Host Your Website Analytics With Plausible

Plausible is an open-source alternative to Google Analytics. It’s available as a commercial hosted product and as free self-hosted software. In this guide, we’ll show you how to setup Plausible and start gaining insights into…

James Walker May 7th, 2021

Setup a Completely Unlimited limits.conf Configuration for Testing Servers

No Limits! We may all like no limits, but is it really such a good idea? Usually, when there are no limits, ‘there’ll be dragons’. It is the same with limits.conf, though for testing servers, a truly unlimited limits.conf hel…

Roel Van de Paar May 4th, 2021

How to Add the Universe, Multiverse and Restricted Repositories in Ubuntu

The Ubuntu operating system can be expanded by installing packages from additional repositories, like the Universe, Multiverse and Restricted repositories. Installing these will allow you to install additional applications. F…

Roel Van de Paar Apr 22nd, 2021

How to Set a User Timezone in Ubuntu and Mint Using .bashrc

Whilst many Desktop enabled Ubuntu computers have a handy GUI configuration cool, this does not help when configuring headless (i.e. screenless) instances like servers. Find out how to setup a timezone from the terminal, usin…

Roel Van de Paar Apr 12th, 2021

Monitoring Temperature on The Raspberry Pi

Is your Raspberry Pi running hot? The Raspberry Pi runs a great factory-default temperature when idle, but when you use it extensively in a heated office, does it run too hot? Find out with a few simple steps….

Roel Van de Paar Apr 2nd, 2021

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