Useful site on webserver with Synology DSM

Glad to have found this site: https://tech.setepontos.com/2016/07/06/synology-dsm-6-web-station-virtual-hosts-settings/

Linux login as www-data user

If you ever need to login as apache (www-data) user to test permissions on a file share, you can use the following command to impersonate yourself as the Apache user:

root@rp:~# su - www-data -s /bin/bash
www-data@rp:~$ cd /var/lib/phpfina
www-data@rp:/var/lib/phpfina$ vi test