Filter: C Linux Internals Networking Reverse Engineering cloudflare go infrastructure meta networking quic security systemd x86-64

What `cloudflared` Actually Does

A tunnel-based ingress that opens zero inbound ports is not 'nginx with less work.' It is a different architectural class with different failure modes and different security guarantees. Here is what the daemon is actually doing, operating two of them on a single VPS, and what I learned from the hours where the difference mattered.

cloudflare quic networking infrastructure security