Jail only a specific user with vsftpd [Linux]

You have 2 options:

 

chroot_local_user=YES

chroot_list_enable=YES

chroot_list_file=/etc/vsftpd/nonchroot.list

 

# Where file /etc/vsftpd/nonchroot.list should contail the users you don’t want to chroot.

 

OR

 

chroot_list_enable=YES

chroot_list_file=/etc/vsftpd/chroot.list

 

Where the file /etc/vsftpd/chroot.list should contain the users you want to be chrooted to their home. By default all other users should have access to the / (root)