COREDNS-QUIC(7) CoreDNS Plugins COREDNS-QUIC(7) NAME quic - configures DNS-over-QUIC (DoQ) server options. DESCRIPTION The quic plugin allows you to configure parameters for the DNS-over-QUIC (DoQ) server to fine-tune the security posture and performance of the server. This plugin can only be used once per quic Server Block. SYNTAX quic { max_streams POSITIVE_INTEGER worker_pool_size POSITIVE_INTEGER } * max_streams limits the number of concurrent QUIC streams per connec- tion. This helps prevent DoS attacks where an attacker could open many streams on a single connection, exhausting server resources. The de- fault value is 256 if not specified. * worker_pool_size defines the size of the worker pool for processing QUIC streams across all connections. The default value is 512 if not specified. This limits the total number of concurrent streams that can be processed across all connections. EXAMPLES Enable DNS-over-QUIC with default settings (256 concurrent streams per con- nection, 512 worker pool size): quic://.:8853 { tls cert.pem key.pem quic whoami } Set custom limits for maximum QUIC streams per connection and worker pool size: quic://.:8853 { tls cert.pem key.pem quic { max_streams 16 worker_pool_size 65536 } whoami } CoreDNS March 2026 COREDNS-QUIC(7)
NAME | DESCRIPTION | SYNTAX | EXAMPLES
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