For just a few seconds I had a strange experience on my simple home server (QNAP TS-210). I was copying many files and when I wanted to copy just another one (text file with
.srt extension), I got an error
550 Function not implemented.
First, what I would like to ask is what exactly does this error message mean, because as I searched the Internet, I found two different error messages bound to one FTP 550 Error Code:
- Given by my server and for example here says "550 Function not implemented".
- Second (for example here) is "550 Requested action not taken. File unavailable (e.g., file not found, no access)".
That's quite two different meanings. How two error descriptions can be bound to one error code?
I have NASFTPD Turbo station 1.3.2e Server (ProFTPD) on server side and Total Commander on Windows 7, on client side. I wasn't able to copy / download this file neither in Total Commander nor directly in Windows.
I SSHed to my server using PuTTy, located this file, copied it to another directory, deleted it and then copied back to original place. After that I was able to copy this file to my local computer, without any problems, even using the same FTP session I left open in Total Commander.
So, second question is, what actually happend?