This guide explains how to enable passive FTP transfer mode on servers with Plesk.

Part 1 - Configure FTP Server

1. Login as “root” user on the server over using SSH
   
   
2. Edit your ProFTPD configuration file
   
   
3. [optional] Backup the file:
   
   cp /etc/proftpd.conf cp /etc/proftpd.conf~
   
4. Edit /etc/proftpd.conf (this example uses vi, please feel free to use nano or any other editor you are comfortable with):
   
   vi /etc/proftpd.conf
   
   
5. In the [Global] section, add the following line:
   
   PassivePorts 49101 49150
   
   
6. Save the file

Part 2 - Open ports in Plesk Firewall

1. Log in to Plesk as “admin” user, go to Server* > Firewall, and click Edit Firewall Configuration
   
   
2. Click Add Custom Rule
   
   
3. Specify the following:
   
   
   • Properties
     • Name of the rule: Allow Passive FTP
     • Match direction: Incoming
     • Action: Allow
   • Ports
     • Add port or port range: 49101-49150
     • TCP: Selected
   • Click Add
     
     
4. Click OK
   
   
5. Click Apply Configuration
   
   
6. Click Activate

* If you have an older version of Plesk, the firewall is located in the Modules section, and the wording may differ slightly.