I've just had a debate on the issue queue for core about Fast 404s and how to route around the issue of having Drupal be the 404 handler by default. The debate was enlightening for everyone involved I think. But the consequence should be a documentation page addressing the issue and the multiples available strategies for solving it.
Right now, it seems that the documentation is very thin on server and performance stuff. I use Nginx as the web server. There's no handbook page for it I believe. Well there's a group but it's more for someone already having the server up and running and wishing to proceed further.
I think that a set of pages related to servers, performance and security issues around each one is of great interest. AFAIK no other CMS project has documentation regarding those issues and it will function not only as a Drupal guide, bit also as a sort of general guide for someone trying to deploy a site with a specific server. There are generic things that relate to being a PHP app and others more specific to Drupal.
As an example of a generic thing that's server related, I could not find a page that advised a particular setting for PHP runtime parameters in production servers. If we had one, perhaps we can avoid someone publishing crappy advisories and including Drupal in it.
What's your take on the proposal? Mind you that I can write the fast 404s page regardless of this proposal being accepted, I just think that we can all benefit if there's more server and performance info in the handbook, hence my proposal.