(09-09-2016, 04:57 AM)TheAnachron Wrote: Can you give me an example application where this username is fix? Because I have not heard of a program yet where I cannot change its daemon/agent username.

Services and daemon users but also system users.
What about the "bin" and "sys" users.

I'm thinking about what would happen with the package manager upon installation of a daemon that will create a user with a specific name, let's say "postgres".