Synology Redirect Nginx HTTP to https + Allow Letsencrypt

Last Updated on September 20, 2022 EDT by Jordan

You can follow this article pretty much all the way.

https://techjogging.com/redirect-www-to-https-in-synology-nas-nginx.html

However, it will fail if you use Letsencrypt to generate an SSL Certificate. So you simply need to add the following above the redirect line. Here’s how it should look.

server {
    listen 80 default_server{{#reuseport}} reuseport{{/reuseport}};
    listen [::]:80 default_server{{#reuseport}} reuseport{{/reuseport}};

    gzip on;
    
    location /.well-known/acme-challenge/ {
    # put your configuration here, if needed
    }

    server_name _;
    return 301 https://$host$request_uri;
}

Of course after you make this change you will need to restart Nginx

synoservicecfg --restart nginx

You can add as many locations as you like; once they’re matched, the request will not continue to the redirect at the end of the server {} container.

This was highlighted in the following Stack Overflow post.

https://serverfault.com/questions/874090/nginx-redirect-everything-except-letsencrypt-to-https