33 lines
760 B
Markdown
33 lines
760 B
Markdown
# loadbalance
|
|
|
|
## Name
|
|
|
|
*loadbalance* - randomizes the order of A, AAAA and MX records.
|
|
|
|
## Description
|
|
|
|
The *loadbalance* will act as a round-robin DNS load balancer by randomizing the order of A, AAAA,
|
|
and MX records in the answer.
|
|
|
|
See [Wikipedia](https://en.wikipedia.org/wiki/Round-robin_DNS) 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.
|
|
|
|
## Syntax
|
|
|
|
~~~
|
|
loadbalance [POLICY]
|
|
~~~
|
|
|
|
* **POLICY** is how to balance. The default, and only option, is "round_robin".
|
|
|
|
## Examples
|
|
|
|
Load balance replies coming back from Google Public DNS:
|
|
|
|
~~~ corefile
|
|
. {
|
|
loadbalance round_robin
|
|
forward . 8.8.8.8 8.8.4.4
|
|
}
|
|
~~~
|