As seen above: use of su vs sudo
I'm a little... lets say thoughtful, about the use of 'su' discussed at some points in this list.
I have a strong opinion about su, which is, avoid it whenever it is possible and use 'sudo' instead. This is the case in close to a 100% in all cases I can think of.
This opinion is based on how both programs work and deal with pam and environmental variables. Not to forget: You will not need to share (or in my case, not even set, but lock that account) a root password.
And I'm curious why Debian still prefers the use of su over sudo?