> > >Two things can be done to avoid this : > > > >1 - Change the ACL on sensitive databases ( /mail/* , names.nsf ) to : > > Anonymous - No access > > [Default] - No access > > In my opinion, a Domino webserver configured with these ACLs still allows enumeration of > valid users. > > If you try to GET a file named /mail/toto.nsf : > - toto doesn't exist => 404 > - toto exists => redirection to the login page ("200 OK") > > I'm not aware of any ACL configuration which forbid this behaviour. If you've configured the Domino server to use form based logins/cookies you'll get a 200 response. Else you'll get a 401 Unauthorized. Either way you can still determine if the .nsf or .box file exists. Cheers, David Litchfield http://www.ngssoftware.com/