ProFTP Passive mode FTP slow Plesk
Connecting to a ProFTP server in Passive mode wouldn’t work, or was very very slow. This happened on a Plesk box.
Open /etc/proftpd.conf and scroll to the bottom, add this setting:
PassivePorts 60000 60019
Restart proftpd, or xinetd just to be safe:
/etc/init.d/xinetd restart