FileZilla server contact problen

Need help with FileZilla Client? Something does not work as expected? In this forum you may find an answer.

Moderator: Project members

Post Reply
500 Command not understood
Posts: 1
Joined: 2020-08-14 14:10
First name: C R
Last name: van der Laan

FileZilla server contact problen

#1 Post by Cees » 2020-08-15 12:51

hi members of this forum,
After logging in to fileZilla I fill in at Host:
At Username and Password I enter the data that I received from my HostingDiscounter.
Message: server cannot contact my website

In my humble opinion that would be because gate 21 is closed?
That is why I did everything I could to investigate the limiting factor that keeps this gate 21 closed.

I have done the following actions to open the port 21:
- First I opened port 21 of my Ziggo router.
- then opened port 21 in Windows Defender Firewall

A " ping" from my laptop to my website shows, that this is correct.
A test with the program (URL gives a negative result with: port 21 closed. :mrgreen:

I hope someone can help me fix the problem

User avatar
Posts: 25251
Joined: 2006-05-01 03:28
Location: Germany

Re: FileZilla server contact problen

#2 Post by boco » 2020-08-16 00:03

01:51:52 Status: Resolving address of
01:51:59 Status: Connecting to [2a00:1478:200:0:f:1011:0:1]:21...
01:51:59 Status: Connection established, waiting for welcome message...
01:51:59 Response: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
01:51:59 Response: 220-You are user number 1 of 50 allowed.
01:51:59 Response: 220-Local time is now 01:50. Server port: 21.
01:51:59 Response: 220-This is a private system - No anonymous login
01:51:59 Response: 220 You will be disconnected after 15 minutes of inactivity.
01:51:59 Command: AUTH TLS
01:51:59 Response: 500 This security scheme is not implemented
01:51:59 Command: AUTH SSL
01:51:59 Response: 500 This security scheme is not implemented
01:51:59 Status: Insecure server, it does not support FTP over TLS.
The server works (although it isn't secure).

You are misunderstanding something - port opening is usually* only required if you are at the server side, but you are at the client side (port 21 is on the other side not under your control). All you need to do is allowing FileZilla to make outgoing connections from and to arbitrary ports, and ensuring your ISP allows FTP (mobile providers tend to block FTP).

*Some data ports would need to be forwarded/opened for allowing the legacy Active (PORT) mode, but that isn't relevant in the context of your question, dealing with the initial connection.
No support requests per PM! You will NOT get any reply!!!
FTP connection problems? Do yourself a favor and read Network Configuration.
FileZilla connection test:

Post Reply