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argocd-apps/apps/base
unkin-agent 9188ef9ac3 bind-resolvers: stop querying IPv6 nameservers (#553)
The in-cluster BIND resolvers have no IPv6 route but still try every AAAA nameserver. Each attempt fails with "network unreachable" yet counts toward the per-query recursion budget, so cold lookups of names with many dual-stack NS (registry.opentofu.org, cloudfront, crates.io, gcr.io) hit `quota reached` and SERVFAIL, surfacing as transient DNS errors in CI.

- mark all IPv6 servers bogus in the openforwarder view so recursion is IPv4-only

Reviewed-on: #553
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
2026-10-16 22:34:48 +11:00
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