D9 Fix Permissions chmod chown - pierregermain/MyDrupal GitHub Wiki
#!/bin/bash
#sudo chmod 555 web/sites/default
sudo chmod 775 -R web/sites/default/files
sudo chmod 444 web/sites/default/settings.php
#sudo chown -R www-data:www-data web/sites/default
sudo chown -R www-data:www-data web/sites/default/files
sudo chown -R www-data:www-data web/sites/default/settings.php
sudo chmod 755 private-files
sudo chown -R www-data:www-data private-files