4083852b70
Prevent future; "remove trailing whitespace" PR, but adding a simple presubmit that checks for this. This presubmit flagged quite some offenders, remove all trailing whitespace from. Apart from that there aren't any other changes. Signed-off-by: Miek Gieben <miek@miek.nl>
33 lines
758 B
Markdown
33 lines
758 B
Markdown
# loadbalance
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## Name
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*loadbalance* - randomize the order of A, AAAA and MX records.
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## Description
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The *loadbalance* will act as a round-robin DNS loadbalancer by randomizing the order of A, AAAA,
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and MX records in the answer.
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See [Wikipedia](https://en.wikipedia.org/wiki/Round-robin_DNS) about the pros and cons on this
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setup. It will take care to sort any CNAMEs before any address records, because some stub resolver
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implementations (like glibc) are particular about that.
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## Syntax
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~~~
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loadbalance [POLICY]
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~~~
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* **POLICY** is how to balance, the default, and only option, is "round_robin".
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## Examples
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Load balance replies coming back from Google Public DNS:
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~~~ corefile
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. {
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loadbalance round_robin
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forward . 8.8.8.8 8.8.4.4
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}
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~~~
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