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COREDNS-HTTPS3(7)		 CoreDNS Plugins	       COREDNS-HTTPS3(7)

NAME
     https3 - configures DNS-over-HTTPS/3 (DoH3) server options.

DESCRIPTION
     The  https3  plugin  allows  you  to configure parameters for the DNS-over-
     HTTPS/3 (DoH3) server to fine-tune the security posture and performance  of
     the server. HTTPS/3 uses QUIC as the underlying transport.

     This plugin can only be used once per HTTPS3 listener block.

SYNTAX
	    https3 {
		max_streams POSITIVE_INTEGER
	    }

     *	 max_streams  limits  the  number of concurrent QUIC streams per connec-
	 tion. This helps prevent unbounded streams on a single connection,  ex-
	 hausting  server  resources. The default value is 256 if not specified.
	 Set to 0 to use underlying QUIC transport default.

EXAMPLES
     Set custom limits for maximum streams:

	    https3://.:443 {
		tls cert.pem key.pem
		https3 {
		    max_streams 50
		}
		whoami
	    }

     Set values to 0 for QUIC transport default, matching CoreDNS behaviour  be-
     fore v1.14.0:

	    https3://.:443 {
		tls cert.pem key.pem
		https3 {
		    max_streams 0
		}
		whoami
	    }

CoreDNS 			   March 2026		       COREDNS-HTTPS3(7)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=coredns-https3&sektion=7&manpath=FreeBSD+Ports+15.1.quarterly>

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