DevOps and Development

Memory management is a core operation in operating systems. Learn how memory management is crucial in process handling, system stability, and performance.

Let's Encrypt secures your Docker Nginx installation by providing easy to install SSL/TLS certificates. This article shows how to use Certbot to set up Let's Encrypt on a Nginx server running in Docker.

This article explains the differences between stack and heap memory and their impact on memory management and program execution.

Java is one of the most popular programming languages used for developing anything from lightweight mobile to desktop applications. This step-by-step guide shows you how simple it is to install Java on Ubuntu.

Branches in Git allow developers to work on different parts of code simultaneously without affecting the main codebase. This tutorial shows how to switch between branches in Git.

A containerized OpenVPN instance can simplify your system's setup and management of TLS-encrypted virtual private networks. This article provides steps to install OpenVPN on Docker and connect a client to the server.

Resetting to a remote branch enables synchronizing a local branch to a remote repository. Follow this step-by-step tutorial to reset to remote using the git reset command, in three simple methods.

Explore Python dictionaries in this comprehensive guide From basic operations, to advanced methods, this guide takes a deep dive into Python dictionaries and features a free downloadable PDF.

Vagrant is a software application that creates an operating system environment using virtualization technology. Vagrant uses a command line interface to load, prepare, and launch a virtual environment, called a Vagrant Box. There are many preconfigured Vagrant boxes available for download. You can also start with a basic box and add your own configuration. This guide will walk you thru how to install Vagrant on Ubuntu 18.04 (Bionic Beaver).

This article explores the basic principles of system calls, delves into their functions and features, and provides a list of common system calls in UNIX and Windows.