<VirtualHost *:80>
        ServerAdmin webmaster@localhost
        ServerName blabla.de
        ServerAlias *.blabla.de
        DocumentRoot /var/www/blabla/
        ErrorLog ${APACHE_LOG_DIR}/blabla_error.log
        CustomLog ${APACHE_LOG_DIR}/blabla_access.log combined
</VirtualHost>

<VirtualHost *:443>
        SSLEngine on
        ServerAdmin webmaster@localhost
        ServerName blabla.de
        ServerAlias *.blabla.de
        DocumentRoot /var/www/blabla/
        ErrorLog ${APACHE_LOG_DIR}/blabla_error.log
        CustomLog ${APACHE_LOG_DIR}/blabla_access.log combined
</VirtualHost>

<Directory /var/www/blabla>
        Options Indexes FollowSymLinks MultiViews
        AuthType Basic
        AuthName "Geben Sie Benutzername und Passwort ein"
        AuthUserFile /etc/apache2/.htpasswd
        Require valid-user
    	Order deny,allow
    	Deny from all
    	Allow from 192.168.176.0/24
    	Allow from 192.168.177.0/24
    	Allow from 192.168.178.0/24
    	Satisfy all
</Directory>