DNS filtering

Started by Jeffrey, December 06, 2019, 01:02:20 AM

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I like many others have run into a problem with using an IPv6 tunnel broker and Netflix where Netflix rejects the IPv6 connection.

I attempted to configure and DNS server on the firewall and everything was working fine until I attempted to use the command in bind "filter-aaaa-on-v4 yes;" it turns out that in order to use the command bind has to be built with the option "--enable-filter-aaaa".  The supplied version of bind9 for OPNsense doesn't have that option compiled in.

I'm not necessarily against recompiling bind however given the choice I would rather stay with the pre-built programs as it will make my life a lot easier in the future when it comes time to upgrading.

In case I was going about this the wrong way I was simply going to use unbound to query bind on port 10053 for anything in the netflix.com domain and allow bind to filter out the aaaa responses.

Jeff