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Alright, I'm going out on a limb to suggest we need an aggressive approach to DNS resolvers. Someone should build a RESOLVBL of resolvers that don't respect RR
by jjoe 11y ago
Alright, I'm going out on a limb to suggest we need an aggressive approach to DNS resolvers. Someone should build a RESOLVBL of resolvers that don't respect RR TTL. I'm certain resolvers will rethink their approach when end users complain.
- rahimnathwani 11y agoIs this a widespread problem? Is it mainly ISP's DNS servers which don't respect TTLs? Does anyone gain (e.g. by saving bandwidth) by caching DNS entries for longer?
- jjoe 11y agoIt's only a problem when you need to switch IPs urgently. Some browsers also maintain their own cache but it's not as aggressive as resolvers. Caching (e.g. overriding TTLs) cuts down RU on space, power, hardware, and latency (having to travel all the way down to the root NS for answers). There's definitely incentive in caching stuff.