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How does that work in practice? Even if I set NS records pointing to two different DNS providers, I don't think a DNS client would automatically switch and retr
by St-Clock 10y ago
How does that work in practice? Even if I set NS records pointing to two different DNS providers, I don't think a DNS client would automatically switch and retry if one is too slow to respond/times out.
- 6d6b73 10y agoWhy not? That's the whole idea behind having more than one NS server isn't it?
- acdha 10y agoMost DNS resolvers will automatically try each NS record until they get a response. That might be your ISP rather than your iPhone but that's an old practice going back to when the internet was even less reliable because some random Sun box under someone's desk failed. Modern web browsers will also do the same thing if a query returns multiple A records and they get a connection error.