Apache ssl named bases virtual host

<IfModule mod_ssl.c>
<VirtualHost *:443>
        ServerName wiki.xix.de
        ServerAdmin technik@xix.de
        DocumentRoot /var/www/xix
        ErrorLog ${APACHE_LOG_DIR}/xix-error.log
        CustomLog ${APACHE_LOG_DIR}/xix.log combined
        SSLEngine on
        SSLCertificateFile    /etc/apache2/ssl/wiki.xix.de.crt
        SSLCertificateKeyFile /etc/apache2/ssl/wiki.xix.de.key
        SSLCACertificateFile /etc/apache2/ssl/xin-ca.crt
</VirtualHost>
</IfModule>