As a matter of fact, yes. I am familiar with SQL/RDBMS, serving WAR/EAR files via JBoss/WebLogic/etc, WSDL and SOA based service calls, and all that stuff, as well as Kerberos, LDAP, and just about every other web and network based acronym out there.
I work for a major software company, and we deal with App Servers delivering content from Oracle/DB2/MSSQL all the time, to both our Rich Client (Eclipse RCP app) and also to a Thin Client (web browser).
I also would certainly NOT want to re-write any of the middle tier code, or re-create any RDBMS tables, or anything of that nature. I simply want to be able to install the already written server logic on my servers.
I want to point to my RDBMS database instead of theirs. I want to put that WAR file on my AppServer.
Much like our software. Our company will host everything for you if you want. You can subscribe to our cloud-based servers. Or you can pay Amazon to do it. Or you can install everything yourself and maintain it yourself on your own hardware, in your own datacenter. The choice is yours, we don't care. We'll come in to set everything up, if you want to pay us to do it, or you can do it on your own.