# Subsystem sftp /usr/lib/openssh/sftp-server
Subsystem     sftp   internal-sftp

Match User sftpuser
        ChrootDirectory /chroot
        ForceCommand internal-sftp
        AllowTcpForwarding no
        GatewayPorts no
        X11Forwarding no
        PermitTunnel no
        AllowAgentForwarding no
        PermitTTY no