ClearOS provides a basic FTP server that can be used for user home folders and Flexshares.
<note warning>For those of you upgrading from ClearOS 5.x, the default FTP ports for Flexshare are 21 (FTP) and 990 (FTPS). Port 2121 is now used to FTP into home directories.</note>
If your system does not have this app available, you can install it via the Marketplace.
You can find this feature in the menu system at the following location: