Expertise level: Easy
By default, WHM can use two different FTP servers: proftpd and Pure-ftpd. The advantages and disadvantages of each FTP server are listed in WHM, on the FTP server selection page.
To change between the two, log into WHM as root.
Open the "Service Configuration" menu.
Click on "FTP Service Selection".
Click on "Save" to change between FTP servers.
You can also see an option to enable or disable anonymous FTP connections. For security purposes, it is strongly recommended to leave anonymous FTP disabled.