Connection refused. Curl download from sftp 990 port

Just setup new server, created some hosts with self signed certificates, then used acmetool to create subdomain with LetsEncrypt certificate. But i think is should create hostname and add certificate to server. Because on
curl -v -k -O ftps://XXXX:yyyy@someftp.com/file.zip
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* About to connect() to someftp.com port 990 (#0)
* Trying ...
0 0 0 0 0 0 0 0 --:--:-- 0:00:01 --:--:-- 0* Connection refused
* Failed connect to someftp.com:990; Connection refused
* Closing connection 0
curl: (7) Failed connect to someftp.com:990; Connection refused

Is there some way to set ssl for whole server? Or im doing something wrong?
Also maybe somebody more experienced in CentminMod can help to set everything up?

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Im trying to connect from new server (Centminmod)(A) to another server (B), to download file. 990 port is on external server.
I connected to Centminmod powered server by SSH and running

Code (Text):

curl -v -k -O ftps://XXXX:yyyy@someftp.com/file.zip

on it, to take files from server B and it says Connection refused. I think its due no valid SSL installed on my server A.
Also if i try to run on server C (which have SSL)

Code (Text):

openssl s_client -connect "Server A"

, it gives
error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure:s23_clnt.c:769:

 

Thank you dear eva2000!
It was CSF Firewall, im added ports and ip to /etc/csf/csf.allow and everything worked!