Is DNS challenge possible with freedns.afraid.org?

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In conclusion I gave up on freedns (doesn’t do free dns challenge) and duckdns (unreliable free dns challenge) and bought a cheap 1.111B Class domain and manage it with free cloudflare.

This caddy-cloudflare docker image allowed me to migrate my two html challenge caddy hosts to dns challenge.

To get it to work I had to add a Caddyfile where the vanilla caddy docker image was working in html challenge without me adding one.

{$DOMAIN} {
        # Proxy everything to Rocket
        reverse_proxy myappcontainer:80
        tls {
                dns cloudflare {$CLOUDFLARE_API_TOKEN}
        }
}

Time to enjoy automatic certificate renewals with no open ports in my homelab.

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