Permissions and group:owner levels for /mnt/raid5

🚧 Installation
1

I have a Ubuntu 16.04 with hardware raid5 which is at /mtn/raid5.
Are my group:owner and permissions levels set properly for security?

Owncloud Data Location
/mnt/raid5/owncloud/data/owncloud/files/Photos

/755/755/750/750/755/755/755

/root:root/root:root/www-data:www-data/www-data:www-data/www-data:www-data/www-data:www-data/www-data:www-data

2

Doesn’t look bad. As root you can impersonate a different user and check if this user has access to it:

sudo -u nobody ls -lisa /mnt/raid5/owncloud/data/owncloud/files/Photos

or

sudo -u nobody touch /mnt/raid5/owncloud/data/owncloud/files/Photos/test.txt

3

Permission denied in both cases.