How secure is the SOAP API, between servers running in JAIL?

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http://serverfault.com – We where working on a project in order to link our own 2 different websites. Then we (my dept. and IT) decided for one of it to take over its others content and user data. (The "master" site had CMS, the "slave" site doesn't) So without replace it, or take it down, we wanted to collect and use personal information from one website in order to provide personalized information and unique user journeys and also a better User Experience on the other website. Also to have by it's CMS a way to run personalized campaigns by our own, without the help of IT department. The 2 websites where on di (HowTos)