[Dnsmasq-discuss] extend filter-A to filter specific domains

Ruijie Yu ruijie at netyu.xyz
Thu Jan 12 23:30:57 UTC 2023


> On Jan 5, 2023, at 13:06, Peter Tirsek <peter at tirsek.com> wrote:
> 
> On Wed, 4 Jan 2023, Olaf Hering wrote:
> 
>> ignore AAAA responses for a specific domain during DNS lookup. This allows it to continue with IPv6 for other connections, and use IPv4 only for such DNS domains.
>> 
>> Unfortunately dnsmasq apparently lacks such feature.
> 
> Hi everyone, new subscriber here. :-)
> 
> What a coincidence: I have had the same need for quite a while, and tonight I decided to finally sit down and implement it.
> 
> […]
> 
> I think I have a patch that allows dnsmasq to do this. I've implemented it as an extension to the --address option, similar to how you can use --address=/domain.com/# to respond with the all-zeroes addres, I suggest using --address=/domain.com/!6 to block AAAA queries, or .../!4 to block A queries for the specified domain name(s). Dnsmasq will then respond with NXDOMAIN for the requested records.
> 
> I'm not 100% happy with the patch, but I hope to be able to submit it tomorrow to get some suggestions and feedback.
> 
> -- 
> Peter Tirsek

Hi Peter, 

Just found this email thread from my inbox. Did you forget to attach your patch(es) or sent them off-list? I don’t see any attachments on this thread. 

Best,


RY






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