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2019-01-27test: replace Google servers with localhostRich Trott
Replace Google DNS servers with 127.0.0.1 in test-dns-setserver-when-querying. Refs: https://github.com/nodejs/node/issues/25664 PR-URL: https://github.com/nodejs/node/pull/25694 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Khaidi Chu <i@2333.moe> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
2017-12-06dns: fix crash while setting server during queryXadillaX
Fix this issue follow these two points: 1. Keep track of how many queries are currently open. If `setServers()` is called while there are open queries, error out. 2. For `Resolver` instances, use option 1. For dns.setServers(), just create a fresh new default channel every time it is called, and then set its servers list. PR-URL: https://github.com/nodejs/node/pull/14891 Fixes: https://github.com/nodejs/node/issues/14734 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Tobias Nießen <tniessen@tnie.de>