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NGINX Proxy Manager - Internal Error


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I had that happen to me too. You have to set up the port forwarding on your router first so letsencrypt can callback to your NPM. You probably have NPM docker port as something other than 80 (443), so remember to set you router to be 80 (443) incoming, and 180 (1443) as the target.

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certbot certonly --config "/etc/letsencrypt.ini" --cert-name "npm-14" --agree-tos --authenticator webroot --email "[email protected]" --preferred-challenges "dns,http" --domains "mydomain.fr"


I can see errors when generating the certificate

The Certificate Authority failed to download the temporary challenge files created by Certbot. Ensure that the listed domains serve their content from the provided --webroot-path/-w and that files created there can be downloaded from the internet.

Edited by chis34
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