I've been using a mid 2010 Mac Mini as an SMB file server. It took me a while to realize the built in SMB didn't work with a Windows client. So I tried samba3 from MacPorts. Everything was working, but when I did the Mavericks 10.9.2 update, samba3 hasn't worked right since. I had it working yesterday, but decided to reboot the Mini to see if samba3 would still work, and it did NOT. Apparently there are some settings that were temporarily enabled, but lost on reboot. I left File Sharing turned on in Preferences, but unchecked SMB under options. I am beside myself, and really would like to get SMB working again with MacPorts samba3. I could describe all of the steps I've tried, including the configuration. But I'd rather see what insight other forum members might have first.