Enable Passive Mode in FTP on CentOS 7 / RHEL 7 for FileZilla and WinSCP

CentOS 7

In my last post, i have showed you how to install and configure vdftp on CentSO 7 / RHEL 7. While testing the ftp using FileZilla (i am using LinuxMint), i got a following error.

Error:    The data connection could not be established: EHOSTUNREACH - No route to host
Error:    Connection timed out
Error:    Failed to retrieve directory listing

After a lot of search, i found FileZilla uses passive mode as a default file transfer mode; but the vsftp is configured to use active mode by default.

We have two options,

  1. Configure FileZilla to use active mode.
  2. Configure FTP server in passive mode.

Use any one method.

Configure FileZilla to use active mode:

In this case, you do not require to modify vsftp server. Change FileZilla transfer mode from passive to active.

In Linux Mint, View —> Settings —> FTP, Select Transfer Mode as Active

CentSo 7 - vsftp FileZilla - Active Mode Selection
CentSo 7 – vsftp FileZilla – Active Mode Selection

Configure FTP server in passive mode:

In this case, you do not require to modify FileZilla. Change vsftp transfer mode from active to passive, edit the configuration file of ftp server

# vi /etc/vsftpd/vsftpd.conf

Add the following lines at the end of the file.

pasv_enable=Yes
pasv_max_port=40000
pasv_min_port=40000

Restart the service.

# systemctl restart vsftpd.service

Allow the port (TCP 40000) in iptables in order to connect ftp server over the network.

# firewall-cmd --permanent --add-port=40000/tcp
# firewall-cmd --reload

Now access ftp using FileZilla, you can see in the message; it is using passive mode for transferring file as the ftp server supports it.

CantOS 7 - FileZilla Passive Mode file Transfer
CantOS 7 – FileZilla Passive Mode file Transfer

That’s All!.

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  • chris

    This is a work around, not a solution. Do you know how to get firewalld to work with passive ftp without limiting your passive connections to a single port?

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