SFTP Upload to Tinkerboard not working. **solved**

[telerobelli]

Hi,

I try to upload date from Meteobridge Nano SD to Tinkerboard (running IoBroker) using SFTP without success.
SSH is running on Tinkerboard (I can connect via Putty and also FileZilla is working fine on port 22 from Win10 PC)

Same user and password as working wirh FileZilla is unfortunately not working with Meteobridge.
Error message (see screenshot): No matching algo hostkey.

I checked Inet but did not found any solution or hint how to solve this (I am alo not an expert).
"Normal" FTP (for example to Fritzbox) is working well with Meteobridge.

Any help appreciated.

Details:
Meteobridge Nano SD SW-Version: Meteobridge 6.1 (Dec 13 2024, build 5017), FW 1.4
Tinkerboard SW Version: Description: Armbian 24.11.1 bookworm / Release: 12

[admin]

Please make use of proxysftp as your SFTP host does not accept the SSL algorithms/cyphers your Meteobridge is able to provide.

[telerobelli]

I was not able to transfer a file even with proxysftp

Therefore I installed "vsftpd" on the Tinkerboard. I set ssl_enable=YES and generated an SSL certificate with 2048-bit private key.
Works perfect with FileZilla but NOT with meteobridge.

Error Message: Fehler: FTP-Test gescheitert: ncftpput: cannot open 192.xxx.xxx.xx: username was not accepted for login.

Same user and passwd works perfect in case ssl_enable is set to NO in the vsftpd config file on Tinkerboard. So the error message looks a bit wired to me.

Two questions:
- does Meteobridge support SSL and
- If yes, is there a limitation in the key length?

[telerobelli]

I have to correct myself, also with ssl_enable = NO it is not possible to uplad a file: Could not create file (see screen shot).

Upload wih same user settings works great from e.g. WIN10 Comand prompt.

No idea what should come next

[Mattk]

SFTP typically woks fine. Hard to tell exactly where the issue is, user or ISP?

In the previous screen shot why is port 21 configured.

[telerobelli]

port 22 for sftp and port 21 for ftp - should be correct, right?

As mentioned, I give up SFTP, but I am also not able to generate file transfer with metrobridge and vsftpd on Tinkerboard.
It works fine with MZilla and WIN10 comand prompt but not with Meteobridge. On the otherhand the Test FTP can transfer the sample file from meteobridge to my Fritzbox. So I am confused - it must have to do with settings I assume.

[telerobelli]

Ok, I managed to get it work.

I was using chroot feature and in this case you need:
allow_writeable_chroot=YES

Why Mzilla and WIN10 cmd prompt works without above settng - no glue.

Remaining question to the experts:
- does meteobridge support SSL with FTP (which ist currently set to NO)?
- and in case yes, any restrictions to key length (i tried 2048 but this is not working) or anything else?

[admin]

Remaining question to the experts:
- does meteobridge support SSL with FTP (which ist currently set to NO)?
- and in case yes, any restrictions to key length (i tried 2048 but this is not working) or anything else?

ad 1) No, FTPS is not supported
ad 2) No. Meteobridge is not intended to tinker around with generating keys by users etc.