Re: Connection Problems with FTPS

From: Daniel Stenberg <>
Date: Wed, 11 May 2005 15:56:43 +0200 (CEST)

On Wed, 11 May 2005, Jonathan Hutcherson wrote:

> I am trying to write a simple python program that will allow me to upload a
> file via FTPS to a FTP server. I keep getting, however, this error:
> error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol
> The thing is, we get the same error when using the cURL tool. Any ideas as
> to what might be happening with this?

And you are supposed to be able to use implicitly on port 990 like this? Try
enforcing SSLv2 or SSLv3 and see if helps!

> last = ['RNFR (nil)','RNTO testfile.txt']

This looks wrong. Or do you have a particular file named (nil) you want to

> auth = ['AUTH SSL']

This is very wrong. You're using implicit FTPS so it is already "AUTH SSL",
and if you'd use a ftp:// URL the FTPSSLAUTH option enables the auth and
associated FTP commands. Sending this as an additional custom command will
only confuse matters.

  Commercial curl and libcurl Technical Support:
Received on 2005-05-11