You must add a Log In User server behavior to the login page to make sure the user name and password a user enters are valid.
The Log In User dialog box appears.
For instructions, see Setting the Log In User dialog box options.
Dreamweaver adds a server behavior to the login page that makes sure the user name and password entered by a visitor are valid.
When a user clicks the Submit button on the login page, the Log In User server behavior compares the values entered by the user against the values for registered users. If the values match, the server behavior opens one page (usually the sites start page). If the values do not match, the server behavior opens another page (usually a page alerting the user that the login attempt failed).