As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.
As far as I can tell, at least in 2.9 labs release, http://hostort/alfresco/service doesn't list services (although http://hostort/alfresco/service/index does).
Try http://hostort/alfresco/service/
