Just thought I’d put these here for my own easy reference. I keep forgetting these records and when there’s an issue I end up Googling and trying to find them! These are DNS records you can query to see if clients are able to lookup the PDC, GC, KDC, and DC of the domain you specify via DNS. If this is broken nothing else will work. :)
You would look this up using
nslookup -type=SRV <Record>.
As a refresher, SRV records are of the form
_Service._Proto.Name TTL Class SRV Priority Weight Port Target. The
_Service._Proto.Name is what we are looking up above, just that our name space is