Command: MLSD
Error: The data connection could not be established: ECONNREFUSED - Connection refused by server
Error: Connection timed out after 60 seconds of inactivity
Error: Failed to retrieve directory listing
echo "40000 45000" > /etc/pure-ftpd/conf/PassivePortRange
echo "1.2.3.4" > /etc/pure-ftpd/conf/ForcePassiveIP
service pure-ftpd restart