It's odd that there seems to be no definitive instructions for nginx or apache for enabling PFS. Given that it's clearly not obvious how to set this up, how many here are inadvertently running non-PFS without knowing it?
Funny, I think in part it's because few people care. Maybe I didn't have the right keywords, but I just wrote an article about this for nginx/stud, and it got 2 upvotes on HN.