setupSFTP

#Go to /etc/ssh/sshd_config
#Subsystem sftp /usr/lib/openssh/sftp-server  
Subsystem sftp internal-sftp  

#We want to match a determined usergroup to apply the below settings
Match Group sftpusers
 PasswordAuthentication no    #If you need password authentication enable it.
 ChrootDirectory %h           #Chroot to the home directory of the user
 X11Forwarding no             #Sftp environment we shouldn't need X11
 AllowTcpForwarding no        #Disable TcpForwarding we want a straight connection to the SFTP
 ForceCommand internal-sftp   #We want to use the new one (sftp-server is used just for backward compatibility) And with Chroot we don't need to setup anything else
 
#### assign SFTP group  and prevent ssh login and
sudo usermod -g sftpusers username  
sudo usermod -s /bin/nologin username  

#### chroot user (so they only see their directory after login)  
sudo mkdir /home/username/
sudo mkdir /home/username/uploads  
sudo chown username:username /home/username/uploads  
sudo chmod 755 /home/username/uploads  

sudo chown root:username /home/username  
sudo chmod 755 /home/username