I have troubles with my SFTP client regarding uploading/modifying files.
This is quite a new issue, I don't remember seeing this kind of problem before.
I created a FTP user in the Edit users, and use SFTP via port 2222 (it seems Debian 9 doesn't handle regular ftp connections on port 21 anymore by default).
It is OK for creating a file, deleting another, but everytime I want to modify anything, I get the following error in sftp.log : OPEN command for /path to file/ blocked by 'STOR' handler.
Can anyone help ?
Thanks for your attention.