querying TLD nameservers - limitations
blrmaani
blrmaani at gmail.com
Mon Mar 25 00:31:16 UTC 2013
hmm.. I see delay in response to some of my queries.. wondering if its our network?
On Sunday, March 24, 2013 5:02:57 PM UTC-7, Liu Mingxing wrote:
> According to my experience, less restriction is imposed by TLD operator
> because TLD servers have sufficient ability and it is not secure for their
> service to limit, especially when too much limitations are added.
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> Liu Mingxing
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> From: blrmaani
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> Date: 2013-03-25 07:55
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> To: comp-protocols-dns-bind
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> Subject: querying TLD nameservers -
> limitations
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> I am developing a monitoring script for internal use and this requires extensive querying of TLD nameservers (a .. m).tld servers.
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> Questions:
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> 1. Are there any rate limitations imposed by TLD servers i.e these servers allows only certain number of DNS queries per IP per second?
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> 2. Are there other limitations I should be aware of while developing my script?
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> Any experience among this group members in developing these kind of scripts using Net::DNS::Resolver perl module?
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> Thanks!
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> Blr
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