OK, did that but had some problems with the ftp server. It wouldn't start, although '#/etc/init.d/proftpd start' gave positive feedback ('starting proftpd...'). Anyway, I sorted that one out with changing the configuration back. Now the new problem: When I have the firewall from ISPConfig running, my ftp server is "not really" reachable. So, this means, I can run gFTP on it, and it gives no negative feedback. It connects to the server fine, but I do not get a directory listing. The last line of the ftp log in procedure is: Code: PASV So, I thought, maybe the firewall is blocking the passive ports of ftp, but how come it worked before with the same firewall and ftp server settings? Did I change something that I'm unaware of? Why could this be? What are the passive ports of ftp? Should I open them in the firewall?