i created VM on cloud with ubuntu 22.04 and installed Proftpd server . this Server is behind Firewall NSV270 .
i can aces sftp Account using external IP , but i cant acess FTP using any ftp client , using passive or active modes its give me this error
Status: Connection established, waiting for welcome message...
Status: Plain FTP is insecure. Please switch to FTP over TLS.
Status: Logged in
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/" is the current directory
Command: TYPE I
Response: 200 Type set to I
Command: PORT 172,16,100,3,253,5
Response: 200 PORT command successful
Command: MLSD
Error: Connection timed out after 20 seconds of inactivity
Error: Failed to retrieve directory listing
i dont know what is the issue exactly .
Thanks
