Cannot connect to 21 port:
# telnet localhost 21
Connected to localhost.localdomain.
Escape character is '^]'.
Connection closed by foreign host.
/var/log/syslog has the following entries:
CONFIG_TEXT: proftpd: fatal: unable to read configuration file '/etc/proftpd.conf': No such file or directory
Missing configuration file
Restore file from a backup or use one from the attachment.