server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/log/host.access.log  main;

    location / {
        root   /opt/app/code;
        index  index.html index.htm;
    }

    location ~ ^/admin.html {
        root   /opt/app/code;
        deny 222.128.189.17;(限制ip)
        allow all;(允许其他所有ip)
        index  index.html index.htm;
    }

    location ~ ^/admin.html {
        root   /opt/app/code;
        allow 222.128.189.0/24;  (允许访问ip)
        deny all;  (不允许访问)
        index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504 404  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}

location / {
        if ( $http_x_forwarded_for !~* "^116\.62\.103\.228"(不是这个ip的返回403)) {
            return 403;
        }
        root   /opt/app/code;
        index  index.html index.htm;

yum -y install httpd-tools

htpasswd -c ./auth_conf(文件名称) yoyo(账号)
根据提示输入密码

location ~(匹配文件) ^/admin.html {
        root   /opt/app/code;
        auth_basic 'auth access test! input you password!';
        auth_basic_user_file /etc/nginx/auth_conf;
        index  index.html index.htm;
    }

nginx -t  -c /etc/nginx/nginx.conf

nginx -s reload -c /etc/nginx/nginx.conf