View source for Apache 2, quickly protect directory with password

* Create file with encrypted password
 htpasswd -c /etc/apache2/.passwd yourname

* Create file ".htaccess" in folder to protected (subfolders are protected too)
<pre>
AuthUserFile /etc/apache2/.passwd
AuthType Basic
AuthName "protecting work in progress"
Require valid-user
</pre>

* add further users without -c
 htpasswd  /etc/apache2/.passwd othername

* restrict access to the webserver (research the correct values for your system)
 cd /etc/apache2
 chown www-data:www-data .passwd
 chmod 600 .passwd

 cd /<path-to-your-.htaccess-file>
 chown www-data:www-data .htaccess
 chmod 600 .htaccess