I still get asked quite a few questions about how to secure Oracle Applications when running through a firewall. This is a very common request for iRecruitment customers who want to have Candidate and Agency functionality available outside of their firewall, and is also a fairly common request from SSHR customers these days, who want to have functionality like the Employee Verification available outside of their firewall. I thought it would therefore be useful to put a note here to let people know where to find that information. There is a great note on metalink, number 287176.1, which has all of the information which you need to know about configuring 11i to run through a DMZ, and note 380490.1 for configuring R12.