How to give a user full rights to several programs and directories?

Question

linux

OS - Debian 8
Added the user TestUser, created a directory for him in the /home/ directory
Made him the owner chown -R TestUser /home/TestUser/
You also need to give permission to edit files in the /var/www/*/*
directory Since the /var/www directory belongs to the www- user and group data - chown -R www-data:www-data /var/www/
Added a user to this group as well gpasswd -a TestUser www-data
But I can't do anything in this directory under this user
How can I give full rights to this user (users) over this directory
And also access to use nginx and mysql services

Answer 1

You also need to give permission to edit files in the directory.

acl
https://serversforhackers.com/c/linux-acls
https://wiki.archlinux.org/index.php/Access_Control...
sudo
https://wiki.archlinux.org/index.php/Sudo_(%D0%A0%...

Answer 2

man getacl, man setacl
uh? For use? Add a separate user to the mysql database, I didn’t understand about nginx - I think everyone is allowed to use it from 127.0.0.1