You can use the IP Lockouts settings to protect your FTP and SSH servers against repeated failed connections. For a description of the IP Lockouts feature, see About IP Lockouts.
To enable IP Lockouts, or configure settings:
From the top menu, select Server > IP Lockouts. The IP Lockouts page opens.
This page is used to navigate to the pages associated with IP Lockouts.
IP Lockouts Settings. Select this option to modify settings that determine if and when to block access from an IP address to your FTP and SSH servers.
Blacklist. Select this option to to view the IP addresses that are not allowed to attempt to connect to the server (FTP or SSH), or to manually add an IP address to the Blacklist.