Symptoms
-
It is not possible to get a directory listing by FTP using SSL/TLS secured connection:
Error: Failed to retrieve directory listing
-
Connection to FTP from
localhoston the server itself works fine:Status: Connecting to 203.0.113.2...
Status: Connection established, waiting for welcome message...
Status: Initializing TLS...
Status: Verifying certificate...
Status: TLS connection established.
Status: Connected
Status: Retrieving directory listing...
Cause
Firewall/NAT misconfiguration in between the Plesk server and the end-user.
Resolution
Ensure that passive port range is configured on a Firewall and in Plesk:
For Linux:
For Windows:
with