What is HTTP? A server admin's guide
HTTP explained for people who run servers: methods, status codes, the headers that matter, what nginx logs, and where HTTP/3 and TLS fit in.
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Self-host n8n on a VPS: Docker + HTTPS
Run n8n on a VPS with Docker Compose, Postgres, and HTTPS behind a reverse proxy: the WEBHOOK_URL and encryption-key traps, plus every error string.
Is it safe to open an http:// link?
Anyone on the network path can read and change an http page. Learn when that risk is real, and what Chrome's warnings and the Chrome 154 change mean.
HTTP vs HTTPS: what changes on your server
HTTP and HTTPS differ on the server side: a second listener, a redirect, HSTS you cannot easily undo, mixed content, and renewal that fails at 3am.
Tailscale Funnel: ports, limits, bandwidth
Tailscale Funnel accepts only ports 443, 8443 and 10000. Here are the prerequisites, the bandwidth reality, and how to check yours is serving.
Tailscale serve vs funnel: which to use
Tailscale serve puts HTTPS on a tailnet-only URL. Funnel opens that same port to the public internet. Which to use, and the policy gate that blocks funnel.
Caddy Reverse Proxy on a VPS, Pinned to 2.11.7
Put two apps behind Caddy 2.11.7 with automatic HTTPS and a version hold, then fix the 431 errors and dropped headers that recent releases bring.
tailscale serve: the commands that matter
Every tailscale serve command you will use, checked on Tailscale 1.102.4: foreground versus background, HTTPS ports, path routing, static files and raw TCP.