Linux

Introduction When changing instance types of an EC2 instance from Xen to Nitro virtualization on AWS, the instance status check can fail due to the transition of device names for storage volumes from /dev/xvd* to /dev/nvme*in the /etc/fstab file. This change reflects the adoption of NVMe technology, providing better performance and…

If you enjoy reading medium articles and are interested in becoming a member, I would be happy to share my referral link with you! Join Medium with my referral link - Adam Szpilewicz Read every story from Adam Szpilewicz (and thousands of other writers on Medium). Your membership fee directly supports…medium.com A Summer in Bell Labs In the summer of 1969, something remarkable happened in Bell Labs, the famed innovation factory that has given the world many scientific and technical breakthroughs. As…

parallel-ssh is an asynchronous parallel SSH library designed for large scale automation. It differentiates ifself from alternatives, other libraries and higher level frameworks like Ansible or Chef in several ways: Scalability — Scales to hundreds, thousands, tens of thousands hosts or more. Ease of use — Running commands over any…

‘You have to focus on the process. You cannot be glued to the result.’— Ivan Lendi. Hello, and welcome back. In this second installment — read the first one here — we will go through how to set up our project’s directory and a virtual environment with the necessary libraries…

Linux has become the de-facto operating system these days especially for servers. Most of us have been using Linux operating systems almost every day and it has become a need to understand this OS from it’s very basic to it’s core. …

Introduction: Shell scripting is a powerful and versatile skill that can greatly enhance your efficiency and productivity in the Linux environment. In this article, we will explore the fundamentals of shell scripting in a fun and approachable way. We will cover the basic concepts, provide clear examples, and guide you…

Explore the fundamental concepts, tools, and techniques that every DevOps engineer should be familiar with when working with Linux. — Introduction: In today’s fast-paced and highly competitive tech industry, DevOps has become a crucial methodology for organizations looking to streamline their software development and deployment processes. At the heart of this methodology lies Linux, the open-source operating system that empowers DevOps engineers to achieve scalability, flexibility, and automation. In this blog…

To optimize Docker images, you can follow several best practices to reduce the image size, improve performance, and enhance overall efficiency. Here are some optimization techniques you can employ: Use appropriate base images: Choose base images that are lightweight and tailored for your specific needs. Official language-specific images (e.g., …

Deep learning with the advantages of fish shell — fish shell is a great upgrade to the simple but ubiquitous bash shell that ships with Linux. However, sometimes it requires a little more effort to get things working correctly due to bash scripts not being directly transferable to fish. By the end of this article you should have a…