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When caching delegation NS data, only use A/AAAA glue records if the resolver has the corresponding IPv4/IPv6 dispatcher configured. If IPv4 or IPv6 is disabled, ignore glue for that family and fall back to caching the nameserver name if there is no glue from the other supported family. The new `cache_delegns` system test is covering delegation NS caching with dual-stack resolver, IPv4-only, IPv6-only configurations. It also set up an authoritative sever with zones with A-only, AAAA-only, and dual-stack glue, which are all queried, and checks the delegation database dump to confirm that the cached delegation data correspond to the resolver configuration. |
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| delv | ||
| dig | ||
| dnssec | ||
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| named | ||
| nsupdate | ||
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| rndc | ||
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| meson.build | ||