Key Takeaways What Is the docker Command and How Does It Work Internally? The docker command is a CLI client that talks to dockerd through a REST API over a Unix socket (/var/run/docker.sock) or TCP. It sends high-level instructions (create, pull, run) that get translated into low-level container lifecycle operations...
Introduction to Advanced Git Features Git is far more than just a version control system—it’s the backbone of modern software collaboration. Whether you’re managing microservices, automating CI/CD pipelines, or contributing to open source, mastering advanced Git features transforms you from a casual user into a DevOps powerhouse. This guide dives...
Key Takeaways Introduction: Supercharge Your AD Management Active Directory is the core of identity and access management in most Windows based enterprise networks. While the graphical user interface (GUI) is familiar, it can be slow and inefficient for repetitive or bulk tasks. This is where PowerShell one-liners come in. By...
Key Takeaways How Do You Install Docker on Ubuntu? To install Docker on Ubuntu, you must add Docker’s official APT repository, install the required packages, configure user permissions, and verify the installation with a test container. Below is the complete, secure, and recommended installation method. Step 1: Why Should You...
Key Takeaways (TL;DR) A centralized observability dashboard enables you to gain deep insights, troubleshoot issues faster, and manage system stability. This article provides a complete walkthrough for setting up a comprehensive monitoring dashboard with: What Are the Three Pillars of Observability? The three pillars of observability are metrics, logs, and...
Key Takeaways (TL;DR) Why Should You Secure Your Grafana Dashboard with HTTPS? Grafana is a powerful tool for data visualization. However, if you run it over a standard HTTP connection, your login credentials, API keys, and visualized data are sent in plain text. This exposes your sensitive information to...
This guide provides a step-by-step procedure for protecting SSH access on a modern Linux server with SecurID multi-factor authentication (MFA). A lot has changed since I wrote the original article in 2019. Getting Started with RSA SecurID Before you can protect a server, you need to have an RSA SecurID...
What is Windows Nano Server? Nano Server is a deeply refactored, headless deployment option for Windows Server 2016. It is designed for maximum efficiency and a minimal attack surface, running from a VHDX file with no Graphical User Interface (GUI) or local login capabilities. All management is performed remotely, primarily...
HTTPS (HTTP over SSL/TLS) encrypts communication between a web browser and a server, which is essential for protecting data during online banking or shopping. This security is provided by an SSL certificate. While public websites use certificates signed by a trusted Certificate Authority (CA), internal or development environments can use...
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