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MHSanaei
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getRemoteIp took a trusted proxy's X-Real-IP first, otherwise the leftmost X-Forwarded-For entry. A proxy that forwards a client-sent X-Real-IP unchanged (Caddy, HAProxy) or appends to X-Forwarded-For leaves both values to the client. X-Forwarded-For is now read from the right, skipping trusted proxies. X-Real-IP is believed only when it agrees with that hop or stands alone, and a disagreement falls back to the proxy's own address. The documented Caddyfile and the docs reverse-proxy generator now overwrite X-Real-IP with the address Caddy saw.
54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
---
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title: Reverse Proxy
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description: Put the 3x-ui panel and subscription behind Nginx or Caddy with Let's Encrypt TLS.
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icon: Waypoints
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---
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A reverse proxy lets you serve the panel and subscription on a clean domain with
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automatic HTTPS, and hide the real ports behind ports 80/443. Prefer to let the
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panel terminate TLS directly? Get a certificate with the
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[`x-ui` SSL menu](/docs/config/ssl-certificates) instead.
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## Generate a config
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<ReverseProxyGenerator />
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<Callout type="info">
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The panel uses WebSockets for live updates, so the proxy must pass the
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`Upgrade`/`Connection` headers (the Nginx output above already does). Caddy
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handles WebSocket upgrades automatically.
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</Callout>
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## Nginx + certificate
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With Nginx, obtain a certificate with `certbot` (or `acme.sh`) and reference it
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in the server block:
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```bash title="certbot"
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certbot certonly --nginx -d panel.example.com
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```
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Reload Nginx after installing the certificate, and set up automatic renewal
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(`certbot renew` runs on a timer by default).
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## Caddy
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Caddy obtains and renews certificates for you — point a Caddyfile at the panel
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and it just works:
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```text title="Caddyfile"
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panel.example.com {
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reverse_proxy 127.0.0.1:2053 {
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header_up X-Real-IP {remote_host}
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}
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}
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```
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## Tips
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- Keep the panel's **web base path** even behind a proxy; defense in depth.
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- If you terminate TLS at the proxy, you may want `XUI_SKIP_HSTS=true` on the
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panel — see the [environment variables reference](/docs/reference/env-vars).
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- Proxy the [subscription](/docs/config/subscription) server too, so its contents
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are served over HTTPS.
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