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我到现在没在技术文档中找到迭代查询的概念。最大的可能是递归查询另一个叫法
llzqq 发表于 2010-08-12 20:48
恩,我看到的是在RFC1034 4.3.1中有这样的描述:
•The simplest mode for the server is non-recursive, since it can answer queries using only local information:
the response contains an error, the answer, or a referral to some other server "closer" to the answer.
All name servers must implement non-recursive queries.
•The simplest mode for the client is recursive, since in this mode the name server acts in the role of a resolver
and returns either an error or the answer, but never referrals. This service is optional in a name server, and
the name server may also choose to restrict the clients which can use recursive mode.
我把这里说的non-recursive就称为迭代查询,把recursive称为递归查询。 |
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