Connection Issue protocol_version question

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: 2019-10-21 19:18
First name: Chris
Last name: La Force

Connection Issue protocol_version question

#1 Post by claforce » 2019-10-21 19:29

We have an openssh sftp server running on CentOS 7.x. We recently added a user for one of our vendors who uses FileZilla as an sftp client and they are unable to connect. I am able to connect via FileZilla and other sftp clients both internally and externally. The only difference I can see before the actual network connection error is their logs say protocol_version=7 were as our say 8. I'm curious as to what the protocol version is in regards to? I'm not sure at this point what version of the client they are using but I am on 3.44.2.


Code: Select all

2019-10-21 10:39:03 11404 1 Status: Connecting to SERVERHOSTNAME...
2019-10-21 10:39:03 11404 1 Response: fzSftp started, protocol_version=7
2019-10-21 10:39:03 11404 1 Command: open "USERNAME@SERVERHOSTNAME" 22
2019-10-21 10:39:45 11404 1 Error: Network error: Connection timed out
2019-10-21 10:39:45 11404 1 Error: Could not connect to server
2019-10-21 10:39:45 11404 1 Status: Waiting to retry..


User avatar
Posts: 25259
Joined: 2006-05-01 03:28
Location: Germany

Re: Connection Issue protocol_version question

#2 Post by boco » 2019-10-21 22:59

To get any support, you need to be on the latest version.
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