How to download using Linux when FZ server is set to ftp-TLS/IMPLICIT

[ppledger]

Hi,

Our IT dude changed the FileZilla settings for a single customer, breaking ftp for the rest of our customers.
He changed regular FTP to FTP TLS/SSL IMPLICIT. Then left the company.

We have no problems with FileZilla and WINSCP clients. But our customers are actually Linux only shops, and typically upload/download via scripts using curl.
We've been searching how to do this, but have not yet found a way. There are about 50 postings on the internet, and none of those solutions work, or are blessed by FileZilla.

So, I thought, why not ask FileZilla?

What is the Linux/RedHat CURL method that works with FileZilla FTP using Implicit TLS/SSL?

Our other option, is to find a new solution for the rest of the customers using our internal NFS/SMB storage and MS-AD credentials.
Can the FileZilla server serve two security protocols, for say, two different server IP's, incoming port, or source IP's ?
(If so, how is that setup?) ( Our purchasing system will take too long to put another box on the dmz.)

Thanks in advance,

Pa Ple

[botg]

Curl supports implicit FTP over TLS, the problem must be something else.

What does it say in the server log if you connect to the server using curl?

[boco]

Can the FileZilla server serve two security protocols, for say, two different server IP's, incoming port, or source IP's ?

It can serve Plain FTP, FTPS Explicit and FTPS Implicit at the same time, it all depends how you access it.

Plain FTP and FTPS Explicit are server over the normal listening port (default 21), with the latter sending AUTH TLS to switch from Plain to FTPS Explicit.
Implicit FTPS uses a different port to connect (default 990).

IOW, allow Plain, Explicit and Implicit, and everyone can pick his/her poison.