Permissions issue Ubuntu 24/Apache2/PHP-FPM

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Hello;

I have a private net that runs non-rountable domain names of .internal.  
I use the hosts files for DNS.

This is for PHP development and testing.

Desktop is Kubuntu. Have installed Virtual Studio Code (VSC).

I have a Win10 laptop running VirtualBox and multiple VMs of which only 
one runs at a time. As I complete a configuration I clone the last 
successful VM to take it to the next level.

The Goal is to be able to remote edit using VSC.

My config

Ubuntu 24.04lts
Apache2
PHP 8.3
MySQL
PHP-FPM

I think I have a complete PHP-FPM config, user is lamp, group is lamp.

PHP Info shows Server API FPM/FastCGI which I understand the config is 
correct.

I can access the server using VSC and am able to add/edit/delete/save 
code files.

My permissions and ownership is:

- sudo chown -R lamp:lamp /var/www/lamp.internal
– sudo find /var/www/lamp.internal -type d -exec chmod 755 {} \;
– sudo find /var/www/lamp.internal -type f -exec chmod 644 {} \;

When I run : http://lamp.internal/php-write-edit-delete.php it reports:

The file does not exist. It will be created shortly.

Error writing to the file.

Error appending to the file.

Error deleting the file.

---

When I change permissions : sudo find /var/www/lamp.internal -type d 
-exec chmod 777 {} \;

The script reports:

The file does not exist. It will be created shortly.

Successfully written to the file: 'test_file.txt'

Successfully appended content to the file: 'test_file.txt'
File Content (After Modifying):

This is the initial content of the file.
Appended content: 2024-12-05 16:37:21

Successfully deleted the file: 'test_file.txt'

---

Interestingly I can edit files using VSC however I have difficulty 
running a script from a browser.

Any help much appreciated!!

Thanks!!

Keith