I had to write a sample query test to ensure that those servers can be
reached. They can't from the my corporate network, for example:
QDEBUG : tst_QDnsLookup::setNameserver(normal) QHostAddress("8.8.8.8") discarded: "Network operation timed out"
QDEBUG : tst_QDnsLookup::setNameserver(normal) QHostAddress("2001:4860:4860::8888") discarded: "Network unreachable"
QDEBUG : tst_QDnsLookup::setNameserver(normal) QHostAddress("1.1.1.1") discarded: "Connection refused"
QDEBUG : tst_QDnsLookup::setNameserver(normal) QHostAddress("2606:4700:4700::1111") discarded: "Network unreachable"
This will also take care of ignoring the IPv6 servers on systems without
it (as above).
Change-Id: I3e3bfef633af4130a03afffd175de18af24add70
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
282b078fca