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Linux | tuts | Virtualization | Web
Install Caddy reverse proxy via Docker
Why caddy? These are just some of Caddy’s amazing features! Install Docker and Docker Compose if you haven’t already. View our docker guide here & our docker rootless guide here. Scenario: you have a new app you wrote or installed via docker called mycoolapp you want to allow the outside world to connect to this…
DevOps Tools: Ansible vs. Puppet vs. Salt vs. Chef
In this comprehensive guide, we delve into the capabilities of Ansible, Puppet, Salt, and Chef—four leading DevOps tools used for automation and configuration management. We explore practical examples, such as creating directories, managing files, and ensuring services like Docker run smoothly in an Ubuntu 22.04 environment. Each tool’s unique syntax and operational model are showcased, helping users decide the best tool for specific needs, whether prioritizing ease of use with Ansible or complex configurations with Chef.
UFW Basics: Setting Up Your Linux Firewall
Explore the essentials of Uncomplicated Firewall (UFW) for intermediate Linux users. This guide provides a thorough introduction to UFW, covering installation, key commands, and basic rule-setting for services like SSH, HTTP, and HTTPS. Learn how to enable, disable, and check firewall status, along with practical, step-by-step examples on how to configure access for specific IPs and port ranges, ensuring robust security and precise traffic management on your server.
Understanding and Optimizing Docker’s daemon.json File
The daemon.json file is Docker’s hidden gem for fine-tuning performance and security. Located at /etc/docker/daemon.json on Linux systems, this configuration file allows admins to customize the Docker daemon’s behavior persistently. From selecting the ideal storage driver to managing log rotation, daemon.json offers a centralized approach to Docker configuration.
Force Upgrading to Ubuntu 24.04 LTS Before Official Release
In this guide, I share a step-by-step method for early adopters to experience Ubuntu 24.04 LTS before its official release. I emphasize caution and provide clear instructions to minimize risks, helping my tech-savvy audience stay ahead of the curve while ensuring a smooth upgrade process.