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about dns round robin

From: Peng Terry Wang <>
Date: Wed, 28 Oct 2015 05:05:56 +0000


For a web server has multiple DNS name(DNS round robin),I found c-ares-1.10/libcurl7.39 doesn't cache the server dns in a same session, the round robin still works in the session, look like it always query dns server for the web server fqdn instead of use dns cache. The libcurl7.32/c-ares1.9.1 doesn't has the issue, could you please comment if there are the DNS query related changes around the area between the two c-ares/libcurl version? Thanks!

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Received on 2015-10-28