How to block Proftpd user access higher level?

Lucky007

Hi,

I want to set up a proftpd user to access only a specific directory and prevent access to higher directories.

I use DefaultRoot one of my WordPress htdocs, but I can access other sites' htdocs directories. So how do I prevent accessing FTP users to a higher level?

DefaultRoot /var/www/site.com/htdocs ftpuser