To configure FTP to use Kerberos, you need to follow the below steps:
1. Install the Kerberos package on the FTP server
2. Configure the Kerberos client to authenticate users
3. Set up a Key Distribution Center (KDC) in the Kerberos realm
4. Configure the FTP server to use Kerberos for authentication
5. Set up a Kerberos service principal for the FTP server
6. Configure the FTP client to use Kerberos for authentication
7. Test the configuration by logging in to the FTP server using a Kerberos ticket.