Who changed the Authentication mode? ##@$%$

  • Hello,

    My team supports a large group of servers, and unfortunately, sometimes the customer has SYSADMIN access to the server.

    We just found a server that "someone" changed the Authentication mode from SQL Auth. to Windows Auth. So the next time the server restarted, a bunch of people weren't too happy.

    My question is...

    From the default trace, or ErrorLog, or Event Viewer... how can I tell who did that monstrosity?

    We don't have custom audit in place, and I guess I can set up something on MS SQL 2008 Policies... but right now I would like to find out who did it.

    I try testing it on my test env. but I can figure out where it might be logged.

    Thank you

    MS SQL 2008 SP1 Enterprise Edition

    Thank you

    Miguel

  • If you don’t have audits / policies / alerts in place it’s hard to figure out. I would suggest you to take actions on it ASAP before *someone* just drops a database (or something similar) by mistake.

    Also, it’s good idea to put this as a business case in front of Management & convince them on revoking sysadmin privileges from customer.

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