6.3K views · 25 reactions | If you’re building Linux-based systems at scale, this guide is packed with practical hardening steps from OS to containers. Covering CIS benchmarks, encryption, firewall rules, and automation tools. | Ubuntu | Facebook

This October marks a very special milestone: 20 years of Ubuntu. A lot has changed over the past two decades, but one thing remains the same: the heart of Ubuntu. You. 🧡 A global community of users, enthusiasts, and contributors helping to change the world through open source. To celebrate this journey, we’ve created a special 20-year Ubuntu wall to imprint your contributions, and we want to hear from you! Share your first Ubuntu experience or tell us how you’re using Ubuntu with the hashtag #U