sftp.sh

# sshd config

nano /etc/ssh/sshd_config

Match User rocketeer
    ChrootDirectory /

Subsystem   sftp internal-sftp

# permissions

sudo setfacl -R -m user:[user]:rwx  /var/www/[site]

# files

sudo find /var/www/[site]/ -type f -exec chmod 664 {} \;
sudo find /var/www/[site]/ -type d -exec chmod 775 {} \;