A serious bug has been detecetd in proftpd:
http://bugs.proftpd.org/show_bug.cgi?id=3521
As a consequence, ftp access to ftp.dante.de a.k.a. dante.ctan.org will be disabled, effective immediately. http or rsync access to dante.ctan.org are not affected.
Service will be resumed only after this bug is corrected.
For the CTAN Team Rainer Schöpf