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73 lines
1.6 KiB
Groff
73 lines
1.6 KiB
Groff
.\" Generated by Mmark Markdown Processer - mmark.miek.nl
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.TH "COREDNS-HTTPS" 7 "October 2026" "CoreDNS" "CoreDNS Plugins"
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.SH "NAME"
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.PP
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\fIhttps\fP - configures DNS-over-HTTPS (DoH) server options.
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.SH "DESCRIPTION"
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.PP
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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.
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.PP
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This plugin can only be used once per HTTPS listener block.
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.SH "SYNTAX"
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.PP
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.RS
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.nf
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https {
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max\_connections NON\_NEGATIVE\_INTEGER
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max\_streams NON\_NEGATIVE\_INTEGER
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}
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.fi
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.RE
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.IP \(bu 4
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\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.
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.IP \(bu 4
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\fB\fCmax_streams\fR limits the number of concurrent HTTP/2 streams per HTTPS connection. This helps prevent unbounded streams on a single connection, exhausting server resources. The default value is 250 if not specified. Set to 0 to use the underlying HTTP/2 transport default.
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.SH "EXAMPLES"
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.PP
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Set custom limits for maximum connections and streams:
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.PP
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.RS
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.nf
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https://.:443 {
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tls cert.pem key.pem
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https {
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max\_connections 100
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max\_streams 100
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}
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whoami
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}
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.fi
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.RE
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.PP
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Set both values to 0 to disable the CoreDNS limits (unbounded connections and the underlying HTTP/2 transport stream default), matching CoreDNS behaviour before v1.14.0:
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.PP
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.RS
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.nf
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https://.:443 {
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tls cert.pem key.pem
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https {
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max\_connections 0
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max\_streams 0
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}
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whoami
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}
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.fi
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.RE
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