Fran Bull 914528c654 feature/conn25: follow CNAMEs when rewriting DNS response
If a DNS query for a domain that should be routed through a connector
results in CNAME records in the response, collapse the CNAME chain to an
A/AAAA record for the domain -> magic IP.

Fixes tailscale/corp#39978

Signed-off-by: Fran Bull <fran@tailscale.com>
2026-05-01 13:58:43 -07:00
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