关于Nnginx SSL认证的问题

安装好Nginx之后，halo.conf文件配置如下:

server {
    listen 80;

    server_name xxx.com
    location / {
        proxy_set_header HOST $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_pass http://127.0.0.1:8090/;
    }
}

之后配置SSL成功，可以成功以xxx.com访问博客，浏览器地址栏为https://xxx.com。

因为一开始没有配置server name为
server_name xxx.com www.xxx.com;

此时地址栏输入www.xxx.com为跳转到nginx欢迎页面：

我想要输入www.xxx.com和xxx.com一样的效果，都能跳转到博客首页，于是把经过ssl认证之后的halo.conf修改如下:

server {

    server_name xxx.com www.xxx.com;

    client_max_body_size 1024m;

    location / {
        proxy_set_header HOST $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_pass http://IP地址:8090/;
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/xxx.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/xxx.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 ($host = xxx.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    listen 80;

    server_name xxx.com www.xxx.com;

    client_max_body_size 1024m;
    return 404; # managed by Certbot

}

重启nginx之后，xxx.com可以正常访问,地址栏显示https://xxx.com，正常跳转到博客首页

但是地址栏输入www.xxx.com时还是没有成功跳转到博客首页，这时也不跳转到nginx欢迎页了，而是直接 404 Not Found。

halo.conf还有要修改的吗？还是说不能这样做，必须重新全部认证一遍？