Earlier quoted context omitted.
If you give the person you're interviewing access to the same tools they'd have in a regular day on the job (Google, manpages, etc.), I'd say that's a fair and probably relatively enjoyable interview. Rejecting someone because they can't recall the correct netstat syntax doesn't seem like good hiring practice, but I assume in good faith that's not what you meant :)
Exactly, all man pages and google is fair. We want to see how they think not rote memorization .
I'm quite happy to try to demonstrate how I think, but I hate hate hate leet code because A) it's not relevant to showing how one thinks and B) I've read so much dunking on it on HN that I'm now stopping interviews when they pull out the hackerrank or live code to say 'without using the library, reverse this linked list'.