Problem with files that contain "mod_rewrite.c"

Hello,

I observe a strange behaviour of WinWCP 5.17.1 when I want to transfer a .htaccess file via FTP (TLS/SSL Explicit Encryption) to the server. If the file contains this:
then I get the error message "Copying files to the remote computer failed. Transfer aborted. Link to file server lost". The file is then stored with 0kb on the server. A possibly already existing .htaccess is also replaced with 0kb.

I have noticed that it is not the file type .htaccess. The problem also occurs when I convert it to a .txt. It seems to have to do with the content only. A friend of mine was able to reproduce the problem as well.

Does anybody have an idea what the problem could be?

Thanks
Olli

Translated with www.DeepL.com/Translator (free version)

This might be TLS 1.3-related problem:
https://winscp.net/tracker/1834

What version of ProFTPD are you using? Can you try upgrading to the latest version?
As a workaround, you can limit WinSCP to TLS 1.2:
https://winscp.net/eng/docs/ui_login_tls

Hi,

the workaround works (limit WinSCP to TLS 1.2):
https://winscp.net/eng/docs/ui_login_tls).

Thank you!
Olli