nginx目录验证
建立一个密码文件，然后设置nginx设置
bear@njava:/$ sudo mkdir /etc/nginx/conf
bear@njava:/$ sudo htpasswd -c /etc/nginx/conf/passwd njava
bear@njava:/$ sudo vi /etc/nginx/sites-available/njava
location ~ ^/xxx/ {
root /data/htdocs/xxx;
auth_basic "input your username and password";
auth_basic_user_file /etc/nginx/conf/passwd;
}