Filezilla client not able to browser into folder structure but i can through windows explorer

[apommier]

I've installed the Filezilla server on several hyper-v windows 2019 installs. Once the server settings are setup i am able to connect to the server but i cannot browser the directory structure properly.

The initial connection goes through and shows the root folder selected, i then click into one of these folders to go deeper and it hangs. On other installs it's unable to retrieve the directory listing.
I've played around with the FTP ports and other settings but am unable to get the filezilla client to browse correctly. Weird thing is i can browse fine through windows explorer.

I have all necessary ports open in windows firewall and my physical firewall.

[apommier]

I'm getting the following from filezilla client:


Response: 150 Opening data channel for directory listing of "/history"
Response: 425 Can't open data connection for transfer of "/history"
Error: Failed to retrieve directory listing

[botg]

And the rest of the log?

[apommier]

Status: Connecting to xxx.xxx.xxx.xxx:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Logged in
Status: Retrieving directory listing...
Status: Directory listing of "/" successful
Status: Retrieving directory listing of "/ftproot"...
Command: CWD ftproot
Response: 250 CWD successful. "/ftproot" is current directory.
Command: PWD
Response: 257 "/ftproot" is current directory.
Command: PORT 10,0,1,4,12,28
Response: 200 Port command successful
Command: MLSD
Response: 150 Opening data channel for directory listing of "/ftproot"
Response: 425 Can't open data connection for transfer of "/ftproot"
Error: Failed to retrieve directory listing

[boco]

1. Why are you using Active (PORT) mode? It is firewall unfriendly.

2. Consider using FTP over TLS (even with a self-signed certificate). It is much more secure and firewalls cannot interfere.

3. Did you delete or modify the Welcome message? If not, you might not even connect to FileZilla Server, but possibly the default Microsoft one.

[apommier]

@boco

When i change the settings to use FTP over TLS the filezilla client can't even connect. Weird thing is i can connect via windows explorer fine.
I have modified the welcome message.

Filezilla Client Logs:
Status: Connecting to xxx.xxx.xxx.xxx:21...
Status: Connection established, waiting for welcome message...
Status: Initializing TLS...
Error: Connection timed out after 20 seconds of inactivity
Error: Could not connect to server
Status: Waiting to retry...

Filezilla Server Logs:
(000046)3/12/2020 7:47:40 AM - (not logged in) (72.31.33.230)> Connected on port 21, sending welcome message...
(000046)3/12/2020 7:47:40 AM - (not logged in) (72.31.33.230)> 220-FileZilla Server 0.9.60 beta
(000046)3/12/2020 7:47:40 AM - (not logged in) (72.31.33.230)> 220 Welcome to QDS
(000046)3/12/2020 7:47:40 AM - (not logged in) (72.31.33.230)> AUTH TLS
(000046)3/12/2020 7:47:40 AM - (not logged in) (72.31.33.230)> 234 Using authentication type TLS
(000046)3/12/2020 7:48:00 AM - (not logged in) (72.31.33.230)> disconnected.

[apommier]

Can anyone shed some light on this?

[botg]

Definitely some firewall interfering with the connection. Remove the offending firewall, or firewalls and try again.

[apommier]

If that were the case i would also have difficulties browsing through windows explorer which i don't. The issue is solely using the filezilla FTP client. I've added firewall rules for the client on my workstation's firewall and the server has all necessary ports open

[apommier]

Any comments?>

[botg]

Windows Explorer uses a different, most insecure protocol variant. Try a different FTP client that uses a secure protocol.