user nginx;
worker_processes auto; 

error_log /var/log/nginx/error.log notice;
pid /var/run/nginx.pid;


events {
    worker_connections 1024;
}


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

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
    '$status $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';

    access_log /var/log/nginx/access.log main;

    sendfile on;
    #tcp_nopush     on;

    keepalive_timeout 65;

    ########## 以下为自定义配置 ##########

    #自定义变量 $connection_upgrade
    map $http_upgrade $connection_upgrade {
        default keep-alive;     # 默认为 keep-alive 一般 http 请求
        'websocket' upgrade;    # 如果为 websocket 则 upgrade 升级
    }

    #gzip  on;
    # 关闭 ip 地址访问
    server {
        listen 80 default_server;
        # listen 443 ssl http2;
        server_name _;

        return 403;
    }

    include /etc/nginx/conf.d/*.conf;
}