Windows Server 2003 - R2
Dedicated IIS server
It's been requested that I make a site public. This site accesses a SQL database which is hosted on a second server. The data stored is considered sensitive. I'm going to put the IIS server in the DMZ and keep the SQL DB on the inside. Only SSL connections allowed to IIS from the outside. From the IIS server to the inside of the network, only those ports required will be opened. (SQL, etc.)
What other "key" steps should I be taking to make this as secure as possible? I can, and have, googled around and found plenty of sites talking about hardening IIS (rename admin acct, good passwords, etc.). I will follow those but I'm just making sure I'm not missing something else that I should be doing. If anyone has done this and wishes to share, I appreciate the feedback. Thanks!