The BackLink attribute is used to maintain NDS External References has two parts:
  • The Distinguished Name(s) of the server(s) holding the external reference; this name is commonly referred to as the Remote Server Name.
  • The Entry ID of the remote server, usually referred to as the Remote ID.

The BackLink has mostly been replaced by the Distributed Reference Links which use the UsedBy attribute for all versions since NetWare 5.x.

The BackLink AttributeTypes is defined as: There might be more information for this subject on one of the following: