Re:A guide to writing a DNS Server from scratch in Rust
by DougBTX on Sunday June 07, 2020 @04:38AM
(#23445804)
From the RFC link in a sibling comment[1]:
> No uses for this have been found that cannot be better accomplished in other ways. This can, however, cause partial replies (not marked "truncated") from a caching server, where the TTLs for some but not all the RRs in the RRSet have expired.
So the cache could be split up like that, but then it could produce partial results, which is worse than reducing the effective TTL.
> No uses for this have been found that cannot be better accomplished in other ways. This can, however, cause partial replies (not marked "truncated") from a caching server, where the TTLs for some but not all the RRs in the RRSet have expired.
So the cache could be split up like that, but then it could produce partial results, which is worse than reducing the effective TTL.
[1] https://tools.ietf.org/html/rfc2181#section-5.2