The name or address of the LDAP server.
This property specifies the IP address (IP number in dotted internet format) or Domain Name of the directory server. It is set before a connection is attempted and cannot be changed once a connection is in progress.
If this property is set to a Domain Name, a DNS request is initiated and upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, an error is returned.