Solve FTP Passive Mode Issue In WHM/Cpanel With CSF

Installing a Firewall (eg: Config Security Firewall/CSF) is one step to hardening security of your webserver. But this come with an issue that CSF block PureFTPd/ProFTPd server, so your FTP client cannot connect to FTP server with passive mode. This is because CSF block the passive connection ports. To enable it you need set the [...]