>> Add a user as system user (which will prevent to create home directory) but without login capability
$ sudo adduser moderpatshala –system –shell /usr/sbin/nologin
>> That user need a password to login, you can skip it if you want to use public key authentication which is more secured than password login
$ sudo passwd moderpatshala
>> Now fix jail directory as root owned
$ sudo chown root:root /home/moderpatshala
>> Provide a writable directory under jailed directory for your sftp user
$ sudo chown -R moderpatshala /home/moderpatshala/public_html
>> Now you need to change SSH demon settings. You can add (if your sshd configuration settings allowed) a different file which I prefer
$ sudo vi /etc/ssh/sshd_config
————- or ———————-
$ sudo vi /etc/ssh/sshd_config.d/80-user-moderpatshala.conf
Match User moderpatshala PasswordAuthentication yes PubkeyAuthentication no ChrootDirectory /home/moderpatshala ForceCommand internal-sftp X11Forwarding no AllowTcpForwarding no
>> Finally it’s time to restart your sshd
$ sudo systemctl restart ssh