Use SSL. You can check it out from the Admin Guide.

I try to configure  profile import  and I get the
following errors:

"This page  is not encrypted for secure  communication.
User names, passwords, and any other information  will
be sent in clear text. For more information about how
to secure the pages  on this server  farm, see the
SharePoint Portal Server Administrator's Guide.

Failed to retrieve the current domain name from the
Active Directory directory services.

One or more values typed on this page are not valid.
Check the text  for the indicated fields.

Settings from the following sections have been
successfully saved : (1) Source"


I did proper installation and logged in as domain user
which has the Power user  Rights. Along with the above
error i get this too:-"The specified account cannot be
validated at corresponding domain controller."