security risks... ( a bit OT )

[Steve Holdoway]

Hi folks,

I'm just about to build up a server to take over about 100 smallish
drupal sites. I've found that it is better to share a lot of resources
between sites if possible, rather than allocate small slices to each.

I am talking about the php-fpm backend that I'll be using here, not
nginx directly. What security implications do you see when sharing a php
backend across some / all of the sites - I will also be using APC.

Apologies for asking it here, but here is so much noise on the php sites
I know, and I find that there's a far more knowledgeable bunch here!

Thanks for your forbearance in advance!

Steve
-- 
Steve Holdoway BSc(Hons) MIITP
http://www.greengecko.co.nz
Linkedin: http://www.linkedin.com/in/steveholdoway
Skype: sholdowa