https://coredns.io/tags/header/ Recent content in header on CoreDNS: DNS and Service Discovery Hugo -- gohugo.io en-us CoreDNS - All Rights Reserved Tue, 09 Sep 2025 18:54:52 +0000 https://coredns.io/plugins/header/ Tue, 09 Sep 2025 18:54:52 +0000 https://coredns.io/plugins/header/ Description header ensures that the flags are in the desired state for queries and responses. The modifications are made transparently for the client and subsequent plugins. Syntax header { SELECTOR ACTION FLAGS... SELECTOR ACTION FLAGS... } SELECTOR defines if the action should be applied on query or response. ACTION defines the state for DNS message header flags. Actions are evaluated in the order they are defined so last one has the most precedence.