PowerDNS
Using dnsdist as a stub resolver #14811
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Hello. I am using dnsmasq as a local stub resolver, but I start hitting some limits with what dnsmasq can do. (It's an amazing tool btw, but it has its limits because of what it is.) I realized I can be using dnsdist a stub resolver pretty effectively. It has a cache; I can use other recursors as "backends"; I can even force use of DNS-over-HTTPS easily. I know that dnsdist is intended as a load balancer, but... I don't see any downside of using it as a local stub resolver? It seems like a more robust solution than using something like stubby. I don't see anyone on the internet writing about this usecase so maybe I am missing something |
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Replies: 2 comments 3 replies
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It seems folks at Cloudflare had exactly the same idea and it seems to be working for them!
Nice |
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Reading it more closely, it seems like they use it for some more advanced usage. But at least I am not the only one to think of dnsdist as a local stub resolver |
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Maybe people are not posting about this because it is kinda obvious? At least for me using dnsdist as a local caching stub resolver seems a pretty obvious use-case. You can throw in some extra resolver backends for added redundancy. |
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One thing that I have hit now is that it's impossible to set up servfail on timeouts with dnsdist |
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It's possible to write retry rules https://dnsdist.org/reference/dq.html#DNSResponse:restart but those are NOT hit with timeouts. |
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Maybe people are not posting about this because it is kinda obvious?
At least for me using dnsdist as a local caching stub resolver seems a pretty obvious use-case. You can throw in some extra resolver backends for added redundancy.