Linux Samba 4 Active Directory over Kerberos Heimdal expert ongoing

We use Linux Samba 4 AD using Heimdal Kerberos at its core. The freelancer we occasionally rely upon is regrettably moving on. We are putting out feelers here for someone who has specific experience in the area in our title. We create a Linux small / medium business server. A typical install for us as the Ubuntu Server at its core running Samba 4 AD over Heimdal KDC with various opensource websites authenticating over LDAP. It would have a variety of Windows / Apple workstations authenticating over via AD. We are looking for someone with: * Primary: Intricate knowledge of how Samba / KDC works under the hood in case something breaks. * Secondary: Intricate knowledge of Microsoft Active Directory If this is you, please provide some way I would specific examples that would allow me to sense your knowledge within the context of your reply to me? Please do not copy / paste material on the Internet search :-) There are many other aspects of our server project that we may weave you into, however, this one is a core knowledge piece for us. Sincerely, Jay Lepore CompuMatter