https://coredns.io/tags/bufsize/ Recent content in bufsize on CoreDNS: DNS and Service Discovery Hugo -- gohugo.io en-us CoreDNS - All Rights Reserved Tue, 15 Aug 2023 20:06:20 +0000 https://coredns.io/plugins/bufsize/ Tue, 15 Aug 2023 20:06:20 +0000 https://coredns.io/plugins/bufsize/ Description bufsize limits a requester’s UDP payload size to within a maximum value. If a request with an OPT RR has a bufsize greater than the limit, the bufsize of the request will be reduced. Otherwise the request is unaffected. It prevents IP fragmentation, mitigating certain DNS vulnerabilities. It cannot increase UDP size requested by the client, it can be reduced only. This will only affect queries that have an OPT RR (EDNS(0)).