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

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In my last post, I have shown you how to install and configure FTP Server (vsftpd) on CentOS 7 / RHEL 7. While testing the FTP server using FileZilla (i am using LinuxMint), I got the 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 searches, I found FileZilla uses passive mode as a default file transfer mode; but the vsftpd 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 vsftpd server. Change FileZilla transfer mode from passive to active.

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

Enable Passive Mode in FTP on CentOS 7 - Active Mode Selection
Enable Passive Mode in FTP on CentOS 7 – 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 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 the file as the FTP server supports it.

Enable Passive Mode in FTP on CentOS 7 - FileZilla Passive Mode file Transfer
Enable Passive Mode in FTP on CentOS 7 – FileZilla Passive Mode file Transfer

That’s All.

Further Reading

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

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