Samba gets Microsoft code contribution
On 10 October 2011, a Microsoft developer contributed a GPL licensed patch to the Samba project. The patch, which was part of a proof of concept for extended protection for NTLM and presented by Stephen A. Zarko of Microsoft’s Open Source Technology Center, has now been noted as the passing of a milestone by Chris Hertel of the Samba team. Samba provides tools and servers which enable interoperability with Windows' SMB and CIFS networking on Linux and Unix based systems.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump