chroot mount bind


mkdir -v -p /sftp/root/${USER}/home
chown root.root /sftp/root/${USER}
mount –bind //${DIR} /sftp/root/${USER}/home
useradd -g tomcat -s /sbin/nologin ${USER}

sshd_config

Match Group tomcat
AllowTcpForwarding no
ForceCommand internal-sftp -u 0002 -d home