How do I create an ftp server on Ubuntu and lock the user in the site folder?

Question

FTP

Hello!
I want to use vsftpd to create an ftpadmin user with the qqq password, which, when entered into filezilla ip and its login, will fall into the /var/www/wordpress folder and will be able to do whatever it wants in it, without having the right to go higher.
vsftpd installed, set these settings

listen=YES 
anonymous_enable=NO 
local_enable=YES 
write_enable=YES 
local_umask=022 
dirmessage_enable=YES 
use_localtime=YES 
connect_from_port_20=YES 
secure_chroot_dir=/var/run/vsftpd/empty 
virtual_use_local_privs=YES 
guest_enable=YES 
user_sub_token=$USER 
chroot_local_user=YES 
hide_ids=YES

I spent the whole evening delving into the instructions, but they all give out one continuous error (
Nothing connects, nothing works, my hands have already dropped, I deleted all the files and reinstalled vsftpd.
I beg you to help me and tell me step by step how to solve this after all problem
Thank you!

Answer 1

Thanks for the answer. But it didn't help me.
Apparently, I had some kind of problem with vsftpd on the server.
I did everything with a clean head in the morning using proftpd. This guide
helped

Answer 2

here is the instruction for your case. You either need to change the home directory for your ftpadmin or go the user_sub_token path. The first way is preferable, in my opinion.