Create SFTP only user in Linux

Create user

• -s /sbin/nologin: disable login
• -M: don't create home directory
• -d <home directory>: home directory

# sudo user <user> -s /sbin/nologin -M -d <home directory>
sudo user sftp-user -s /sbin/nologin -M -d /var/www/html/

Set password

# sudo passwd <user>
sudo passwd sftp-user

Add this to /etc/ssh/sshd_config

# Match User <user>
Match User sftp-user
   ForceCommand internal-sftp
   AllowTcpForwarding no
   X11Forwarding no