Due the severity of the proftp bug, and the mixed systems and versions in the VPSs, we many customers have switched to use vsftp, others just started using sftp, regardless that we have the following notes for customers willing to enable proftpd again: The bug affects versions >= 1.3.2rc3, for more information: http://bugs.proftpd.org/show_bug.cgi?id=3521 Here is…