Nginx代理不起作用

Question

我使用certbot安装Nginx，可以加密ssl。大多数配置由certbot完成。我使用https://www.ssllabs.com/ssltest/检查我的ssl及其工作。我遇到了我的域无法通过代理的问题。 sudo nginx -t正常工作。

我是新来的，我不知道我在哪里遇到问题。

nginx nginx.conf

user www-data;
worker_processes auto;

events {
    worker_connections 1024;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
        #tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 75;
    types_hash_max_size 2048;
        server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

        ssl_certificate /etc/letsencrypt/live/mobile.niyazi.com/cert.pem;
        ssl_certificate_key /etc/letsencrypt/live/mobile.niyazi.com/privkey.pem;

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;
        #ssl_stapling on;
        ssl_stapling_verify on;
    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

        #gzip on;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
        #include /etc/nginx/sites-enabled/*;
}

nginx / conf.d / default.conf

server {
    charset UTF-8;
    listen 80 ;
    listen [::]:80 ;

    server_name mobile.niyazi.com; # managed by Certbot

    root /var/www/html;
    index index.html index.htm index.nginx-debian.html;

    if ($host = mobile.niyazi.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot
   # return 404; # managed by Certbot
}

server {
    charset UTF-8;
    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    server_name mobile.niyazi.com; # managed by Certbot

    ssl_certificate /etc/letsencrypt/live/mobile.niyazi.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/mobile.niyazi.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


    location / {
    # First attempt to serve request as file, then
    # as directory, then fall back to displaying a 404.
    #try_files $uri $uri/ =404;
        proxy_pass http://127.0.0.1:8888/;
   }
}