al mapping of domain names to IP addresses. If the request can be handled by the sidecar, it will directly return a response to the application, avoiding a roundtrip to the upstream DNS server. Otherwise, the request is forwarded upstream following the standard <code>/etc/resolv.conf</code> DNS configuration.</p><p>While Kubernetes provides DNS resolution for Kubernetes <code>Service</code>s out of the box, any custom <code>ServiceEntry</code>s will not be recognized. With this feature, <code>ServiceEntry</