IIS FTP server Load Balanced slow response

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

Moderator: Project members

Post Reply
Message
Author
pere097
500 Command not understood
Posts: 1
Joined: 2019-03-15 15:00
First name: Priyantha
Last name: Perera

IIS FTP server Load Balanced slow response

#1 Post by pere097 » 2019-03-15 15:24

I am getting this error when trying to connecting
we have opened passive ports on IIS on the servers from 1051-1150.

Status: Resolving address of **URL removed***
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...
Command: PWD
Response: 257 "/" is current directory.
Command: TYPE I
Response: 200 Type set to I.
Command: PASV
Response: 227 Entering Passive Mode (20,36,252,6,197,142).
Command: LIST
Response: 150 Opening BINARY mode data connection.
Error: Connection timed out after 20 seconds of inactivity
Error: Failed to retrieve directory listing
Status: Disconnected from server
Status: Resolving address **URL removed***
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: Disconnected from server: ECONNABORTED - Connection aborted

User avatar
botg
Site Admin
Posts: 32070
Joined: 2004-02-23 20:49
First name: Tim
Last name: Kosse
Contact:

Re: IIS FTP server Load Balanced slow response

#2 Post by botg » 2019-03-15 15:45

The server (or a malicious firewall or router sabotaging the traffic) advertises passive port 197 * 256 + 142 = 50574

Post Reply