This is my first post here, and I am by no means qualified as a Windows Server or Storage Server 2008 or SQL Server 2008 administrator. I am mostly a Unix guy, however tasked with a job to investigate if our firm (a small software startup), IT infrastructure, which includes Windows Server 2008, Windows Storage Server, and SQL Server used exclusively by Finance, HR, Sales, Legal and Administration depts. Devs are all on Unix.
What I need to get some ideas around is, how to protect the Windows based infrastructure from insider attacks. More precisely, against rogue system-administrators. Our current system administration role is played by a temp. In theory, having access to all (or most) passwords/login credentials, he can do whatever he likes. Is there then some technology (s.a. audit logs, tamper-proof backups etc.), that can be setup (like onetime), whose credentials are available only with an extremely trusted person (maybe CEO himself), and all other system admin tasks can be performed by this temp chap. In worst case, if the admin removes, deliberately corrupts/modifies certain files, or alters database content, such acts can be -- 1) Tracked down 2) Proven 3) Rectified
PS> I understand that this is probably not a pure DBA question, and pardon me for willfully posting this, but I didn't find a more appropriate SE forum, but found quite a few interesting Windows Server infrastructure discussions here.