通过openssl对密码进行加密

cd /etc/nginx/conf.d 
指定用户名 
echo -n "admin:" > passwd.db
指定密码   
openssl passwd abc123456 >> passwd.db

修改nginx配置文件

server {         
    listen       80 default_server;         
    listen       [::]:80 default_server;         
    server_name  _;         
    root         /usr/share/nginx/html;         
    auth_basic "Please input password";      ##输入用户名密码提示框         
    auth_basic_user_file /etc/nginx/conf.d/passwd.db;  ##配置用户名密码验证文件路径
}