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[master] clarify auth ECS is not meant for production use

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Evan Hunt 2016-12-26 16:51:55 -08:00
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commit c5b8b74113
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doc/arm/Bv9ARM-book.xml
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@ -17205,6 +17205,18 @@ zone "example.com" {
in ACLs that are not prefixed with "ecs" are matched only
against the source address.
</para>
<note>
<simpara>
(Note: The authoritative ECS implementation in
<command>named</command> is based on an early version of the
specification, and is known to have incompatibilities with
other implementations. It is also inefficient, requiring
a separate view for each client subnet to be sent different
answers, and it is unable to correct for overlapping subnets in
the configuration. It can be used for testing purposes, but is
not recommended for production use.)
</simpara>
</note>
<para>
When <acronym>BIND</acronym> 9 is built with GeoIP support,
ACLs can also be used for geographic access restrictions.