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.TH "COREDNS-HTTPS" 7 "March 2026" "CoreDNS" "CoreDNS Plugins"

.SH "NAME"
.PP
\fIhttps\fP - configures DNS-over-HTTPS (DoH) server options.

.SH "DESCRIPTION"
.PP
The \fIhttps\fP plugin allows you to configure parameters for the DNS-over-HTTPS (DoH) server to fine-tune the security posture and performance of the server.

.PP
This plugin can only be used once per HTTPS listener block.

.SH "SYNTAX"
.PP
.RS

.nf
https {
    max\_connections POSITIVE\_INTEGER
}

.fi
.RE

.IP \(bu 4
\fB\fCmax_connections\fR limits the number of concurrent TCP connections to the HTTPS server. The default value is 200 if not specified. Set to 0 for unbounded.


.SH "EXAMPLES"
.PP
Set custom limits for maximum connections:

.PP
.RS

.nf
https://.:443 {
    tls cert.pem key.pem
    https {
        max\_connections 100
    }
    whoami
}

.fi
.RE

.PP
Set values to 0 for unbounded, matching CoreDNS behaviour before v1.14.0:

.PP
.RS

.nf
https://.:443 {
    tls cert.pem key.pem
    https {
        max\_connections 0
    }
    whoami
}

.fi
.RE