If your FTP account is not in use or you want to suspend your account, you can do it from the DirectAdmin account.
Login to your DirectAdmin account.
In the
Account Managersection, click on theFTP Managementicon or type “FTP Management” in thenavigation filterbox. The option will appear. Click it.
Under “Account”, choose the account you wish to suspend.
Click on
Suspend.
Your FTP account will be suspended, and later you can start it again by clicking Unsuspend.