NGINX + Let's encrypt: Could not automatically find a matching server block

Question

I'm publishing a website made with Python Pyramid on an Ubuntu 18.04 server. The website is running properly on HTTP and now I'm trying to make it run on HTTPS by following this article but when trying to install I get this message:

IMPORTANT NOTES:
 - Unable to install the certificate
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/dev.anything.com/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/dev.anything.com/privkey.pem
   Your cert will expire on 2019-03-17. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot again
   with the "certonly" option. To non-interactively renew *all* of
   your certificates, run "certbot renew" 

This is my configuration file, which lives on /etc/nginx/sites-available/snow_service.nginx:

server {
    listen 80;
    listen 443 ssl;
    server_name dev.anything.com
    server_tokens off;
    ssl_certificate /etc/letsencrypt/live/dev.anything.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/dev.anything.com/privkey.pem;

    charset utf-8;
    client_max_body_size 1M;

    location /static {
        gzip            on;
        gzip_buffers    8 256k;
        uwsgi_buffers   8 256k;

        alias /webapps/englobe_snow_pyramid_rest_api/pyramid_rest_api/static;
        expires 1d;
    }
    location / {
        gzip            on;
        gzip_buffers    8 256k;
        uwsgi_buffers   8 256k;

        try_files $uri @yourapplication;
    }
    location @yourapplication {
        gzip            on;
        gzip_buffers    8 256k;
        uwsgi_buffers   8 256k;

        server_tokens off;
        include uwsgi_params;
        proxy_set_header Host $host;
        proxy_set_header real_scheme $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_pass http://127.0.0.1:8999;
    }
}

I also tried to rename the file with the domain name but it doesn't work as well. The path for the SSL certificates I put manually because I saw it in another answer here at Stack Overflow.

What am I missing?

Answer 1

I had the same problem, it occurred because of the Nginx config file name. I set the wrong postfix for my file (.com instead of .conf). After fixing this mistake, it worked like a charm!

Answer 2

Certbot: Could not automatically find a matching server block

in my case, he did not detect my /etc/nginx/site-available/my.domain.com

$certbot --nginx

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Please enter the domain name(s) you would like on your certificate (comma and/or
space separated) (Enter 'c' to cancel): 

also try this

$ sudo certbot install --cert-name my.domain.com

Could not automatically find a matching server block for my.domain.com. Set the `server_name` directive to use the Nginx installer.

And try to reload and restart the Nginx, and cerbot but still no response !

"Solution" create the new file in site-available/new_my.domain.com and generate the symbolic link again ln -s /etc/nginx/site-available/new_my.domain.com /etc/nginx/site-enabled

then restart the Nginx

Answer 3

The files in sites-enabled should just be links to the "real" files in sites-available. You should only edit the ones in sites-available, and then run

cd /etc/nginx/sites-enabled
ln -s ../sites-available/your-site.conf 

to enable that site.

If you want to disable the site, you can just delete the link in sites-enabled.

Answer 4

Here is the solution: I was changing the file in the sites-available folder and not changing the file at the sites-enabled folder. This is the final file content:

server {
    listen 80 default_server;
    server_name dev.anything.com;
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl;
    server_name elglobe_snow_service
    server_tokens off;

    ssl_certificate /etc/letsencrypt/live/dev.anything.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/dev.anything.com/privkey.pem;

    charset utf-8;
    client_max_body_size 1M;

    location /static {
        gzip            on;
        gzip_buffers    8 256k;
        uwsgi_buffers   8 256k;

        alias /webapps/englobe_snow_pyramid_rest_api/pyramid_rest_api/static;
        expires 1d;
    }
    location / {
        gzip            on;
        gzip_buffers    8 256k;
        uwsgi_buffers   8 256k;

        try_files $uri @yourapplication;
    }
    location @yourapplication {
        gzip            on;
        gzip_buffers    8 256k;
        uwsgi_buffers   8 256k;

        server_tokens off;
        include uwsgi_params;
        proxy_set_header Host $host;
        proxy_set_header real_scheme $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_pass http://127.0.0.1:8999;
    }
}