nginx: enable basic authentication

What is Basic Authentication?

Basic authentication is a simple authentication schema build into the HTTP protocol.
The client sends HTTP request with the Authorization header that contains a base-64 encoded string from username:password values

For example: Authorization: Basic YXBpdXNlcjpDSUNhcGkwMQ==

I have assinged this task so want to take a note for enabling basic authen in nginx

How to enable basic authen in nginx

Refer nginx site in here

• first, install nginx http://nginx.org/en/download.html

• Generate a Password File
  you can use the htpasswd or apache2-utils (Debian, Ubuntu) or httpd-tools (RHEL/CentOS/Oracle Linux).

  htpasswd -c ./.htpasswd admin
  New password:
  Re-type new password:
  Adding password for user admin
  
  --- 
  cat .htpasswd
  admin:$apr1$MnWfNTQr$AiRKKJd.pfSgIN.fMcanJ/  <== Encrypted password

• Configuring nginx
  you can limit access to the whole website with basic authentication by specify the auth_basic directive at server

  server {
      ...
      auth_basic "Basic Auth";
      auth_basic_user_file /usr/local/etc/nginx/.htpasswd;
      ...
  }

  test config:

  nginx -t
  nginx: the configuration file /usr/local/etc/nginx/nginx.conf syntax is ok

  reload nginx:

  nginx -s quit
  nginx

• Test your setting
  
  

Refer

• WWW-Authenticate
• Basic Auth