* core: Reject conflicting TLS policies on shared listeners.
This PR tries to fix the issue when multiple zones share a DoT listener, CoreDNS can apply one sibling block’s tls.Config to all zones, allowing weaker TLS or client-auth settings to override a stricter zone.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* Fix ACME
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
---------
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>