compile flag to disable AAAA responses is unrecognized

[Mark Andrews]

AAAA filtering is now a plug-in (as of 9.14).  This is documented in the ARM.

> On 7 Jul 2021, at 05:05, Scott Strattner <sstrattn at us.ibm.com> wrote:
> 
> I successfully built 9.16.18 on my RH8.4 ppc64el VM. But after doing so I wanted to set it up so that if it receives a query over IPv4 it will not return any AAAA records in the reply.
>  
> I found this: https://kb.isc.org/docs/aa-00576
>  
> Which mentions using --enable-filter-aaaa and then applying the right option in named.conf. However when I added this to my configure flags, it says it is not recognized (see below).
>  
> What is the current way to enforce this behavior? I tried adding the "filter-aaaa-on-v4 yes;" in named.conf (perhaps that compile option was now enabled by default?) but did not work (queries still return both A and AAAA results).
>  
> Configuration summary:
> -------------------------------------------------------------------------------
> Optional features enabled:
>     GSS-API (--with-gssapi)
>     Allow 'fixed' rrset-order (--enable-fixed-rrset)
>     Print backtrace on crash (--enable-backtrace)
>     Use symbol table for backtrace, named only (--enable-symtable)
>     Use GNU libtool (--with-libtool)
>     CMocka Unit Testing Framework (--with-cmocka)
>     DNSSEC validation active by default (--enable-auto-validation)
>     Dynamically loadable zone (DLZ) drivers:
>         Filesystem (--with-dlz-filesystem)
> -------------------------------------------------------------------------------
> Features disabled or unavailable on this platform:
>     Small-system tuning (--with-tuning)
>     Allow 'dnstap' packet logging (--enable-dnstap)
>     GeoIP2 access control (--enable-geoip)
>     DNS Response Policy Service interface (--enable-dnsrps)
>     Using PKCS#11 for Public-Key Cryptography (--with-native-pkcs11)
>     Very verbose query trace logging (--enable-querytrace)
>     IDN support (--with-libidn2)
> -------------------------------------------------------------------------------
> Configured paths:
>     prefix: /usr/local
>     sysconfdir: ${prefix}/etc
>     localstatedir: ${prefix}/var
> -------------------------------------------------------------------------------
> Compiler: gcc
>     gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1)
>     Copyright (C) 2018 Free Software Foundation, Inc.
>     This is free software; see the source for copying conditions.  There is NO
>     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> Unrecognized options:
>     --enable-filter-aaaa
> Scott Strattner
> 
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka at isc.org