Well, thank you, now, I have another problem.
I joined a server to a multiserver environment using the Multiserver Tutorial here on HowToForge.
I use a vServer from Netcup with a modified hostname and changed rDNS settings ( I did a clean reinstall with the new values, so no old hostname was used in any way, plus I did every step exactly as in the "Perfect Server" Tutorial).
However, when I run the cronjob on the slave, it tries to connect with
How can I change this?