Securing a Linux Server on DigitalOcean | SSH Hardening, UFW, Fail2Ban, LXD & Nginx скачать в хорошем качестве

Securing a Linux Server on DigitalOcean | SSH Hardening, UFW, Fail2Ban, LXD & Nginx

In this video, I demonstrate a complete Linux server security and isolation setup on DigitalOcean, performed as part of a real DevOps assignment. The goal of this project is to secure a Linux VM using industry best practices, and then extend it with container isolation using LXD. 📌 Full documentation and configuration files are available on GitHub. https://github.com/Mukulkalsait/A_2_D... ━━━━━━━━━━━━━━━━━━ 🔧 WHAT’S COVERED ━━━━━━━━━━━━━━━━━━ • DigitalOcean Ubuntu VM creation • SSH key-based authentication • User management & sudo configuration • SSH hardening (root login disabled, password auth disabled) • Firewall setup using UFW • Brute-force protection with Fail2Ban • Automatic security updates • Nginx deployment on host VM • LXD installation & container setup • Nginx running inside LXD container • Host ↔ Container port proxy using LXD • Clear separation of host vs container services ━━━━━━━━━━━━━━━━━━ 📁 DOCUMENTATION & CODE ━━━━━━━━━━━━━━━━━━ GitHub Repository: https://github.com/Mukulkalsait/A_2_D... The repository contains: • Complete step-by-step documentation README.md • SSH, UFW, and Fail2Ban configuration files • Commands used during the setup ━━━━━━━━━━━━━━━━━━ ℹ️ NOTE ━━━━━━━━━━━━━━━━━━ During the interview discussion, LXD/LXC was mentioned as a possible requirement. While the core task focused on Linux server security, I have included LXD as an optional enhancement to demonstrate container isolation and real-world architecture. ━━━━━━━━━━━━━━━━━━ 📌 ABOUT ━━━━━━━━━━━━━━━━━━ This setup mirrors a production-style Linux server environment commonly used by DevOps and SRE teams. If you’re preparing for: • DevOps interviews • Linux administration roles • Cloud infrastructure projects — this walkthrough should be useful. Thanks for watching!