Linux – Page 22

What Is Kubernetes?

Kubernetes (pronounced “CUBE-A-NET-IS”) is an open-source platform that helps manage container applications such as Docker. Whether you are looking to automate or scale these containers across multiple hosts, Kubernetes can speed up deployment. To do this it may use internal components such as Kubernetes API or third-party extensions which run on Kubernetes. This article will help you understand the basic concepts of Kubernetes and why it is causing such a seismic shift in the server market, with vendors as well as cloud providers, such as Azure and Google Cloud, offering Kubernetes services. Kubernetes: A Brief History Kubernetes is one of Google’s gifts to the open… Read more

How to Change Your LUKS Encryption Passphrase

You decided to protect your data with LUKS, and that’s great, but you chose a bad passphrase, and you need to change it. You’re in luck. Unlike a lot of encryption solutions, LUKS actually does allow you to change your passphrase fairly easily. Unfortunately, this isn’t a solution for a lost passphrase, you do need to know your previous one, but it is a great way to rotate passphrases or get rid of a poorly designed old one. Changing the Passphrase Simply changing your passphrase on a LUKS drive with only one passphrase is extremely easy. Open a terminal and run the following command, substituting… Read more

How to Use cURL Command in Linux

No matter what you use your computer for, there has probably been at least one occasion where you needed to download something, and opening a browser felt like overkill. This would be a great use case for cURL. As the name suggests, cURL is a command-line tool for transferring data with URLs. One of the simplest uses is to download a file via the command line. This is deceptive, however, as cURL is an incredibly powerful tool depending on how you use it. Even if you’re somewhat familiar with the command, you probably aren’t using it to its full potential. Basic cURL Functionality One of… Read more

AI Algorithms Show More Accuracy at Determining Early Death Predictions

Our mortality can be a difficult subject to broach. Would you want to know when you’re going to die if that information was available to you? Maybe not a specific date, but would you want to know if you’re predisposed to die earlier than the average? For instance, with me it’s a no-brainer. I don’t particularly want to know, but I’ve already beaten the odds: I’m a cancer survivor. So my chances are increased. Artificial intelligence algorithms are now showing more accuracy determining early death. While my situation may be easier to determine, the next person’s may not be, but AI is still able to… Read more

How to Boot to Recovery Mode (Safe Mode) in Ubuntu

Sometimes, things go wrong, even on Linux systems, and you need a way to get your computer back to full functionality. On Windows, Safe Mode is usually the first choice for getting back in and fixing a problem. However, on Linux there really isn’t a direct counterpart. On most Linux distributions the solution involves using a live CD to access files on your hard drive or even use a chroot. Ubuntu has come up with a clever solution in recovery mode. It lets you perform several key recovery tasks, including booting into a root terminal to give you full access to fix your computer. Note:… Read more