vsftpd - chroot users to their homedir

Open vsftpd configuration file - /etc/vsftpd/vsftpd.conf

nano /etc/vsftpd/vsftpd.conf

Make sure following line exists (and uncommented):

chroot_local_user=YES 

Save and close the file. Restart vsftpd.

/etc/init.d/vsftpd restart