- Plesk 12.5 for Linux
- Plesk Onyx for Linux
A server behind NAT and have several IP addresses configured. FTP directory listing is working on the shared IP and not the dedicated IP.
# grep -r Masq /etc/proftpd* MasqueradeAddress 203.0.113.2
MasqueradeAddressconfigured on the server with several IP.
MasqueradeAddressinstruct FTP server advertise defined IP to FTP clients and they attempt to establish a connection to this address.
Improper firewall configuration
- Configure NAT firewall to handle FTP traffic.