Create FTP user and lock user directory under Linux

Linux To create an FTP user on:
Useradd-s/sbin/nologin-g ftp-d/Your directory-M user name
passwd users

-s/sbin/nologin Disable user SSH login
To which group-G is added
-G can be added to multiple groups with comma-separated names
-D Specify user directory

to lock the root directory:
1, modify the vsftpd.conf
Chroot_list_enable=yes
Chroot_list_file=/etc/vsftpd/chroot_list
2. Create the/etc/vsftpd/chroot_list file and add the user name to the file (one user name per line).
3. In the/etc/vsftpd/user_list file, add the user name to the file, one line at a time.
4. Restart the FTP service

Create FTP user and lock user directory under Linux