I've seen often Veeam users to configure their repositories using administrative permissions. This is a really bad practice as the most precious part of a Veeam environment, the backup files, are then exposed to security risks, in case anyone can obtain those credentials. And with the raise of cryptolockers and ransomware this behavior has become even more dangerous. For Linux repositories, users can configure their servers to use common users.
The original post of this article is here: Permissions for Veeam backup Linux repositories