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by beevek
4220 days ago
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http://blog.cloudflare.com/introducing-cname-flattening-rfc-... is a reasonable explanation. fundamentally a CNAME says "when you get queries for this name, go look at this other name instead". among other things, doing a CNAME at the zone apex means resolvers can't then find your NS, MX, or other records at the apex, which is problematic. |
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