69 lines
2.7 KiB
Markdown
69 lines
2.7 KiB
Markdown
---
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title: Reverse-proxy
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---
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:::info
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Since authentik uses WebSockets to communicate with Outposts, it does not support HTTP/1.0 reverse-proxies. The HTTP/1.0 specification does not officially support WebSockets or protocol upgrades, though some clients may allow it.
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:::
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If you want to access authentik behind a reverse proxy, there are a few headers that must be passed upstream:
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- `X-Forwarded-Proto`: Tells authentik and Proxy Providers if they are being served over an HTTPS connection.
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- `X-Forwarded-For`: Without this, authentik will not know the IP addresses of clients.
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- `Host`: Required for various security checks, WebSocket handshake, and Outpost and Proxy Provider communication.
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- `Connection: Upgrade` and `Upgrade: WebSocket`: Required to upgrade protocols for requests to the WebSocket endpoints under HTTP/1.1.
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It is also recommended to use a [modern TLS configuration](https://ssl-config.mozilla.org/) and disable SSL/TLS protocols older than TLS 1.3.
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If your reverse proxy isn't accessing authentik from a private IP address, [trusted proxy CIDRs configuration](./configuration/configuration.mdx#listen-settings) needs to be set on the authentik server to allow client IP address detection.
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The following nginx configuration can be used as a starting point for your own configuration.
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```
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# Upstream where your authentik server is hosted.
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upstream authentik {
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server <hostname of your authentik server>:9443;
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# Improve performance by keeping some connections alive.
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keepalive 10;
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}
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# Upgrade WebSocket if requested, otherwise use keepalive
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map $http_upgrade $connection_upgrade_keepalive {
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default upgrade;
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'' '';
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}
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server {
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# HTTP server config
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listen 80;
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listen [::]:80;
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server_name sso.domain.tld;
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# 301 redirect to HTTPS
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return 301 https://$host$request_uri;
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}
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server {
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# HTTPS server config
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listen 443 ssl http2;
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listen [::]:443 ssl http2;
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server_name sso.domain.tld;
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# TLS certificates
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ssl_certificate /etc/letsencrypt/live/domain.tld/fullchain.pem;
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ssl_certificate_key /etc/letsencrypt/live/domain.tld/privkey.pem;
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add_header Strict-Transport-Security "max-age=63072000" always;
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# Proxy site
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# Location can be set to a subpath if desired, see documentation linked below:
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# https://goauthentik.io/docs/installation/configuration#authentik_web__path
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location / {
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proxy_pass https://authentik;
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proxy_http_version 1.1;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header Host $http_host;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection $connection_upgrade_keepalive;
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}
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}
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```
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