FTP timeout when using Passive mode with servers using NAT Configurations

Symptoms

Attempting to log in with FTP fails with a timeout error:

CONFIG_TEXT: 227 Entering Passive Mode
Timeout - try typing a little faster next time

Cause

cPanel configures the option "ForcePassiveIP" in PureFTP automatically with the server's primary IP address to accommodate NAT ( Network Address Translation ) configurations. If this isn't required, it can cause FTP logins to timeout when entering Passive mode.

Resolution

Edit the configuration file at /var/cpanel/conf/pureftpd/local to disable the option "ForcePassiveIP".

• If a "ForcePassiveIP" entry already exists within the /var/cpanel/conf/pureftpd/local file, replace the IP with "~". 
• If the /var/cpanel/conf/pureftpd/local file doesn't exist, create it with "ForcePassiveIP: ~". 
• If the /var/cpanel/conf/pureftpd/local file exists but the "ForcePassiveIP" does not exist within it, add the line "ForcePassiveIP: ~" to it.

Rebuild the configuration to make the change active by running the following command:

# /usr/local/cpanel/scripts/setupftpserver pure-ftpd --force