XAMPP changed the group, now MySQL does not start - how to fix it?

Question

linux

Hi all.
Changed XAMPP permissions and group, MySQL doesn't start after restart,
my actions are:
sudo chmod -R 777 /opt/lampp
sudo chown -hR nobody /opt/lampp
sudo chmod -R 755 /opt/lampp
Question - how to get everything back?

Answer 1

I can be wrong. Try making www-data the owner.
sudo chown -R www-data:www-data /opt/lampp