使用 nginx 将 www 重定向到裸域

Question

我使用 nginx 作为代理，使用 certbot 作为我的 SSL。我可以使用我的裸域通过 HTTPS 获取主页和子页面，但是添加

www.

会导致它给我 nginx 欢迎页面。下面是我当前的

/etc/nginx/sites-available/django

文件，它也在

/etc/nginx/sites-enabled/django

:

中进行了符号链接

server {
    server_name  www.example.com;
    return       301 http://example.com$request_uri;
}

server {
    server_name example.com;
#    root /var/www/html;

    location / {
#        index new.html;
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection upgrade;
        proxy_set_header Accept-Encoding gzip;
    }

    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

#server {
#    server_name www.example.com;
##    root /var/www/html;
#    location / {
##        index new.html;
#        proxy_pass http://127.0.0.1:8000;
#        proxy_set_header Host $host;
#        proxy_set_header Upgrade $http_upgrade;
#        proxy_set_header Connection upgrade;
#        proxy_set_header Accept-Encoding gzip;
#    }
#
#    listen [::]:443 ssl ipv6only=on; # managed by Certbot
#    listen 443 ssl; # managed by Certbot
#    ssl_certificate /etc/letsencrypt/live/www.example.com/fullchain.pem; # managed by Certbot
#    ssl_certificate_key /etc/letsencrypt/live/www.example.com/privkey.pem; # managed by Certbot
#    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
#    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
#}  

server {
    if ($host = example.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    if ($host = www.example.com) {
        return 301 https://$host$request_uri;
    } # managed by me

    listen 80;
    listen [::]:80;
    server_name example.com www.example.com;
    return 404; # managed by Certbot


}

如配置所示，我最初尝试为

www.

域设置一个单独的服务器块，但这也没有用。目前使用此配置，我在任何子页面 (

https://www.example.com/example

) 和主域上的 nginx 欢迎页面上收到 404 错误。有什么想法吗？