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Expose your server

HTTPS​

If you want to open your Komga server outside your local network, it is strongly advised to secure it with https (especially due to the use of http basic authentication).

Spring Boot supports https out of the box, but you will have to configure it, and https is most useful only with valid certificates (not self-signed), which most people don't readily have available.

I recommend using Caddy as a reverse proxy, as it supports the automatic generation of Let's Encrypt certificates.

Reverse proxy​

Here are some sample configuration on how to configure reverse proxy for Komga.

Caddy (v1)​

Without a base URL configured in Komga, using a subdomain:

komga.yourdomain.com {
  proxy / http://your-komga-server:25600 {
    transparent
  }
}

With a base URL configured in Komga:

yourdomain.com {
  proxy /komga http://your-komga-server:25600 {
    transparent
  }
}

Caddy (v2)​

Without a base URL configured in Komga, using a subdomain:

komga.yourdomain.com {
  reverse_proxy http://your-komga-server:25600
}

With a base URL configured in Komga:

yourdomain.com {
  reverse_proxy /komga/* http://your-komga-server:25600
}