Re: [NET] 451-Error during read from data connection

Hello Marcin,

What version are you using? Make sure yoy test with the current version
3.10.0. Without a reproducible integration test, we don't have anything to
debug. If you can create a PR with a smallest reproducible test case,
that would be grea.  You can use Docker if it can't all be done in Java.

Gary

On Tue, Apr 23, 2024, 5:57 AM Marcin Kudla <[email protected]> wrote:

> Hi
>
> I used Apache Commons Net for long time without problems, but recently I
> get error from one of us server when we try to upload files over ftps.
>
> Error: 451-Error during read from data connection
> 451-Transfer aborted
> 451 0.233 seconds (measured here), 68.53 Kbytes per second
>
> This error occurs always on specific files, other files upload without
> problems.
>
> Here is some example of my code:
>
> FTPSClient client = new FTPSClient();
> client.setAuthValue("TLS");
> client.setControlEncoding("UTF-8");
> client.connect("host", "port");
> client.login("user", "passw");
> client.setKeepAlive(true);
> client.enterLocalPassiveMode();
> client.execPBSZ(0);
> client.execPROT("P");
> client.setFileType(FTP.BINARY_FILE_TYPE);
>
> client.storeFile(remotePath, inputStream)
>
> Server is Pure-FTPd, I tried set some buffers values for client but nothing
> help.
>
> Do you have any suggestions as to what could be the problem?
>
> Regards,
>
> Marcin Kudla
>