Ubuntu 15.04
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Use Basic Auth
2015/05/25
 
Enable Basic Authentication to limit access on specific web pages.
[1] For example, set Basic Auth under the [/var/www/html/auth-basic] directory.
root@www:~#
apt-get -y install apache2-utils
root@www:~#
mkdir /var/www/html/auth-basic

root@www:~#
vi /etc/apache2/sites-available/auth-basic.conf
# create new

<Directory /var/www/html/auth-basic>
    AuthType Basic
    AuthName "Basic Authentication"
    AuthUserFile /etc/apache2/.htpasswd
    require valid-user
</Directory>
# add a user ( create a new file with "-c" ⇒ only add "-c" at the first time. Do not add it 2nd time to add users. )

root@www:~#
htpasswd -c /etc/apache2/.htpasswd ubuntu

New password:
# set password

Re-type new password:
# confrim

Adding password for user ubuntu
root@www:~#
a2ensite auth-basic 

Enabling site auth-basic.
To activate the new configuration, you need to run:
  service apache2 reload
root@www:~#
systemctl restart apache2
# create a test page

root@www:~#
vi /var/www/html/auth-basic/index.html 
<html>
<body>
<div style="width: 100%; font-size: 40px; font-weight: bold; text-align: center;">
Test Page for Basic Auth
</div>
</body>
</html>
  Access to the test page with a Web browser on Client and authenticate with a user which is added with htpasswd.
  Just accessed.
 
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