Nginx Reverse Proxy 2026 – Ubuntu, SSL, Docker Apps

Quick answer: Nginx on :80/:443, app only on 127.0.0.1, proxy headers + Let’s Encrypt.

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Frequently asked questions (FAQ)

Nginx vs Caddy vs Traefik?

Caddy: auto HTTPS. Traefik: Docker labels. Nginx: max control. All fine on a NexoraHost VPS.

Which headers?

Host, X-Real-IP, X-Forwarded-For, X-Forwarded-Proto – required for Nextcloud trusted_proxies.

WebSockets?

Upgrade headers and longer timeouts.

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