I'm stuck in connecting to FTP over TLS/SSL (FTPS) server. I am using SimpleFTP library through am able to connect FTP server without SSL but could not connect FTPS.
It is giving me this error at line 2 (ftp.connect),
SimpleFTP received an unknown response when connecting to the FTP server:
220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
and am using below code
SimpleFTP ftp = new SimpleFTP();
// Connect to an FTP server on port 21.
ftp.connect("xxx.xxx.xxx.xxx", 21, "username", "pwd");
//getting error at (ftp.connect) above line
// Set binary mode.
ftp.bin();
// Change to a new working directory on the FTP server.
ftp.cwd("web");
ftp.disconnect();
The SimpleFTP
class/library does not support TLS/SSL at all.
Use the FTPSClient
class from the Apache Commons Net library instead.
See the official example for the FTPClient
class and just substitute the FTPClient
with the FTPSClient
.
FTPSClient ftpClient = new FTPSClient();
ftpClient.connect(host);
ftpClient.login(user, password);
The FTPSClient
class defaults to an explicit TLS/SSL (recommended). In a rare case you need an implicit TLS/SSL, use new FTPSClient(true)
.