Setting up Caddy as a reverse proxy

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We like using Caddy because it makes setting up the reverse proxy and TLS a breeze.

docker run -p 80:80 -p 443:443 caddy caddy reverse-proxy --to --from <YOUR_TRACKING_DOMAIN> --change-host-header

You'll want to sub out YOUR_TRACKING_DOMAIN for whatever domain you use for proxying to PostHog. We'd suggest something like or the like.

Make sure your DNS records point to your machine and that ports 80 and 443 are open to the public and directed toward Caddy.

If you want to use a config file instead, you can use something of the form:

:{$PORT} {
header {
Access-Control-Allow-Origin https://<your domain name>
reverse_proxy {
header_up Host
header_down -Access-Control-Allow-Origin


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