I've got a problem resolving a particular external Internet address on all the (internal domain) DNS servers in one of my domains.
I do not use forwarders, only root hints (no forwarders). We switched ISPs about 2 weeks ago and have had this problem since.
I've configured several DNS servers like this, and slogged me way many other problems, but I've never had an issue with the root hints - so I've never really learned how they work in any detail.
I know they are well known established servers that somehow, mysteriously help DNS find a NS authoritative for whatever address you are trying to resolve. I think this has something to do with breaking down the address (i.e. www.yahoo.com
to www and yahoo and com). That is about the extent of what I know.
I've examined debug logs on DNS servers from the effected domain and a domain that CAN resolve the address. What I can't figure out is what is wrong, because I don't really understand how root hints work in detail.
Now that I've said a mouthful, I'm looking for a good place online where I can find out some detail so I can figure out these debug logs.
Anyone have good recommendation(s) on a site with details on how root hints work?
Thanks in advance!!!