Firewall Zone Persistence: Why firewalld Runtime Changes Vanish and How to Pin Them
firewalld runtime changes disappear on reload or reconnect, and NetworkManager can override zone bindings. Here's how to make firewall zones persist.
#firewalld
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Trust the Tailnet, Not the Network: Automating Wi-Fi Hardening with NetworkManager Dispatchers
Treat every Wi-Fi network as hostile: a NetworkManager dispatcher that pins a locked-down firewalld zone and forces a Tailscale exit node on connect.