Most of the stuff I learned about UNIX required actually buying books, not much different from Windows.
Drop someone on a proper UNIX just with man to see how far they go joining a NFS server or logging in via yellow pages.
If on workgroup, you just have to have the same user name on different machine and it works like in domain.
> Discoverability of this stuff on Windows is terrible
Meh... matter of taste and adequate Windows social skills, not a fact.
... and password. ... and no it doesn't really because an AD has a few other extras, such as Kerberos and an LDAP database with some odd ideas to chat to. You can of course spin up a Samba AD DC or two for a cheaper alternative.
And really, if you want to talk about discoverability between Linux in a server role and a Windows Server... Windows Server wins by an absolute landslide. But I don't think discoverability is all that important when you're talking about server administration.
Funny, I've seen people saying exactly that when newbies bounce off some aspect of Linux, and in both cases it's a usability failure.
Discoverability of this stuff on Windows is terrible. Things like powershell remoting exist but getting them working between two random machines is opaque. Yes, some of it gets easier in a domain, and that's one of the big Windows wins (since the NIS/YP era), but domains are an extremely premium feature.