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Day 3 — Pre-flight & UFW for k3s: disable swap, sysctl & modules, open ports 22/6443/8472/30000–32767

HomeLab – Pre-flight & Firewall (UFW) for k3s – Day 3

October 1, 2025 admin DevOps, Homelab For Devops, Linux

Goal: Prepare Linux nodes for k3s by disabling swap, setting required sysctl and kernel modules, and opening firewall ports via[…]

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