What "primary_ns" for?

"JWD" <[email protected]> Fri, 22 Oct 2010 01:25:12 +0800
Newsgroups gmane.network.dns.bind9.dlz
Message-ID <[email protected]>
It looks like ""primary_ns" filed is useless.
When do I need to intert "primary_ns" filed?

 				
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JWD
2010-10-22



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