48 lines
949 B
Groff
48 lines
949 B
Groff
.\" Generated by Mmark Markdown Processer - mmark.miek.nl
|
|
.TH "COREDNS-LOADBALANCE" 7 "October 2020" "CoreDNS" "CoreDNS Plugins"
|
|
|
|
.SH "NAME"
|
|
.PP
|
|
\fIloadbalance\fP - randomizes the order of A, AAAA and MX records.
|
|
|
|
.SH "DESCRIPTION"
|
|
.PP
|
|
The \fIloadbalance\fP will act as a round-robin DNS load balancer by randomizing the order of A, AAAA,
|
|
and MX records in the answer.
|
|
|
|
.PP
|
|
See Wikipedia
|
|
\[la]https://en.wikipedia.org/wiki/Round-robin_DNS\[ra] about the pros and cons of this
|
|
setup. It will take care to sort any CNAMEs before any address records, because some stub resolver
|
|
implementations (like glibc) are particular about that.
|
|
|
|
.SH "SYNTAX"
|
|
.PP
|
|
.RS
|
|
|
|
.nf
|
|
loadbalance [POLICY]
|
|
|
|
.fi
|
|
.RE
|
|
|
|
.IP \(bu 4
|
|
\fBPOLICY\fP is how to balance. The default, and only option, is "round_robin".
|
|
|
|
|
|
.SH "EXAMPLES"
|
|
.PP
|
|
Load balance replies coming back from Google Public DNS:
|
|
|
|
.PP
|
|
.RS
|
|
|
|
.nf
|
|
\&. {
|
|
loadbalance round\_robin
|
|
forward . 8.8.8.8 8.8.4.4
|
|
}
|
|
|
|
.fi
|
|
.RE
|
|
|