auth_basic authentication

shell > yum -y install httpd- tools # Install htpasswd tools

shell > cd /usr/local/nginx-1.10.2/conf

shell > htpasswd - c pass.db wang # Create an authentication user wang and enter a password, enter htpasswd pass.db username when adding a user

shell > vim /usr/local/nginx-1.10.2/conf/vhost/local.conf

server {
    listen       80;
    server_name  local.server.com;
    
    auth_basic "User Authentication";
    auth_basic_user_file /usr/local/nginx/conf/pass.db;
    
    location / {
        root   /data/www;
        index  index.html;
    }
}