What are these for?

[Michael Cronenworth]

lee wrote:
> what is auditd for?  The manpage doesn't tell me, and I can't find any
> documentation about it telling me what the purpose is.  Is there
> anything that speaks against disabling it?

$ man auditd

>
> Similar with mcelog:  What do I need that for?  And benefits from it?  I
> can probably just disable it.

$ man mcelog

>
> Do I need polkitd?  It doesn't make sense to me; if I want to do
> something for which more permissions are required, I do it as root.  So
> what's the benefit I would have from polkitd?

$ man polkitd

PolicyKit allows you to access/perform things without becoming root.