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NGINX on Unraid with self-signed certificate (local access only)



I have an Unraid NAS for a couple of months now. I do not want it to be accessible from the outside to minimize the risk of being hacked

Among other things I installed Vaultwarden in a docker container and that#s when my problems started vaultwarden needs https, and to enable this you need a reverse proxy. So I installed Nginx and configured it to get a let's encrypt certificate. For that the NAS needs to be visible from outside.


I looked into creating my own CA and SSL certificates and ran into one problem after another. I think now I amat a point where I almost figured it out but I hit a wall.


So I created a CA and a certificate, that has all my subdomains in the SAN entry.


I installed the certificate chain on the Unraid srever and also on my clients so now when I access the Unraid GUI the connection is secure.


I also added the certificate to Nginx and configured the connection for vaultwarden to use it.


Nginx is running on

Vaultwarden on


the DNS (using pihole) entry vaultwarden.home points to


When I now access the URL https://vaultwarden.home I get the error bad gateway.


I have no idea why this is not working. When I access vaultwarden using


I hope someone can help me or point me in the right direction.



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