Subnet mask cheat sheet
Subnetting is a fundamental networking concept that helps to divide a larger network into smaller, more manageable subnetworks. Understanding subnetting …
Git Tutorial Part 2: Branching and Merging with Git
The previous section covered the fundamentals of Git, such as installing and configuring Git, creating a repository, and making your …
Git Tutorial Part 1: Introduction to Git and Basic Setup
What is Git? Git is a distributed version control system (VCS) that helps developers track changes to their code over …
How to create Animated GIFs with Peek on Ubuntu
Creating animated GIFs is a great way to capture and share quick, visual demonstrations of processes or software. Whether you’re …
How to Connect to EC2 Using FileZilla
Introduction FileZilla is a powerful FTP client that allows you to connect to remote servers for file transfer. Whether you …
How to Reset the Portainer Admin Password in Docker
Portainer is an advanced container management solution that makes it easier to deploy and manage Docker containers. However, one limitation …
Common EC2 connection errors and how to resolve them
Amazon EC2 (Elastic Compute Cloud) is a scalable cloud service that enables users to create and manage virtual servers. However, …
How to Resolve the “Unprotected Private Key File” Error in SSH on Windows
When working with SSH, especially while trying to connect to remote servers (like AWS EC2 instances), you typically use a …
How to Resolve Dual Monitor Issues After Upgrading Ubuntu
Recently, I upgraded my Ubuntu operating system from version 22.04 to 22.04. After the upgrade, everything seemed to be working …
How to Enable MFA Using TOTP in HashiCorp Vault
In this tutorial, we’ll walk through the process of enabling Multi-Factor Authentication (MFA) using the Time-based One-Time Password (TOTP) method …