/usr/local/etc/ssh/sshd_config
Match User ftp1
ChrootDirectory /ftp
X11Forwarding no
AllowTcpForwarding no
ForceCommand internal-sftp
/etc/passwd
ftp1:x:1000:1000:Linux User,,,:/upload:/bin/false
drwxr-xr-x 3 root root 60 Jan 28 11:02 /ftp
drwxrwxr-x 2 root ftp1 60 Jan 28 11:03 /ftp/upload