RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+).(.*)\.(.*) [NC]
RewriteRule (.*) http://d4e.at/schulungen [L]

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+).(.*)\.(.*) [NC]
RewriteRule /(.*) http://d4e.at/cloud4education [R=301,L]