The Problem You’re Solving If you’ve ever needed to access a remote server that’s hidden behind another server—like a database on a private network, a development environment, or a production server not directly exposed to the internet—you’ve faced the multi-hop SSH challenge. In a typical scenario: Visualizing the Connection Flow Why ProxyJump Beats Manual SSH…
Category: Networking & Systems Administration
Network Security & Protocols
Linux/Windows Server Administration
VPNs & Remote Work Solutions
Troubleshooting & IT Support
Your Complete Guide to Setting Up an Ansible Automation Environment
Are you tired of manually configuring servers one by one? Welcome to the world of Ansible, where infrastructure automation becomes simple, repeatable, and scalable. In this guide, I’ll walk you through setting up your first Ansible environment from scratch. Understanding Ansible Components Before diving into configuration, let’s understand the four key pillars of Ansible: YAML:…
Fixing Inter-Container Communication in Podman: Solving the Silent DNS Failure
My Podman containers on a custom network couldn’t resolve each other by name — even though everything looked correct. After methodically eliminating layers (network config, DNS daemon, container state, firewall), I discovered UFW was silently blocking UDP port 53 on the new podman4 bridge interface. The fix? One ufw allow rule. Here’s how I got…
A Practical Guide to AWX: From Setup to Automation
Introduction to AWX AWX is the open source upstream project for Red Hat Ansible Automation Platform, providing a web-based interface, REST API, and task engine for Ansible. It helps teams manage automation at scale with role-based access control, scheduling, and workflow orchestration. 0. AWX Structure Overview 1. Creating an Organization Organizations are the highest level…
Podman Networking Demystified: When to Use Pods, Networks, or Both
If you’ve transitioned from Docker to Podman, you’ve likely encountered a fundamental question: “How should my containers communicate?” Unlike Docker’s straightforward container-to-container networking, Podman introduces pods—a powerful concept borrowed from Kubernetes that adds both capability and complexity.