Need to create a user with FTP/SFTP access only?

Question

linux

There is a folder /home/bitrix/www/images_canonical/
There is a user tltltl with a home directory /home/bitrix/www/images_canonical/ It is
necessary to make access only to this folder. Those. prevent the user from going to the directory above, etc.
How to do?

Answer 1

Create a group sftpusers
add the necessary users to this group
change the shell for these users to nologin
Configure sshd for this group:
/etc/ssh/sshd_config

Match Group sftpusers
        ChrootDirectory /sftp/%u
        ForceCommand internal-sftp

ready. (don't forget to reboot sshd)

Answer 2

man chroot

Answer 3

Like this:

Match User ftpuser
        ForceCommand internal-sftp
        ChrootDirectory /sftp

in sshd_config