[CentOS] named server

I started the named server on CentOS and it seems to resolve DNS request OK, but it does not seem to retain the info for very long. From what I can tell using "dig", a domain's ip address is retained for less than 12 hours. So in the morning, it takes 4+ seconds to resolve again the first time. Is there an adjustment somewhere for this or is the caching named support not enabled by default?

Also, I thought it would be faster if I set named to use my ISP's named server as the first choice. Where do I set this up, in root.hints?

Anyone who knows more about "named" please feel free to comment!

Thanks! Lee

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