With this login type an LDAP server will be used for authentication. The list of URLs represents a connection to the same replicated LDAP environment on different servers. The list will be checked top down if a server is not accessible, e.g. due to updates.
LDAP servers will searched in the DNS of the current domain using the keys _ldap._tcp.<domain>
and _ldaps._tcp.<domain>
if the list is left empty.
Sample login URLs look like: ldap://MyLdapServer:389/
or ldaps://MyLdapServer:636/
(with SSL).
If username does not contain a domain name then this Windows domain name will be added to the beginning of the username followed by a backslash (Windows domain name\username). It is not necessary for the user to provide the Windows domain name any more during authentication.