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Multiple upstream servers #143

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kristoftorok opened this issue Dec 22, 2022 · 3 comments
Open

Multiple upstream servers #143

kristoftorok opened this issue Dec 22, 2022 · 3 comments

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@kristoftorok
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Hi,

is there a way to specify multiple upstream servers and, in case of fail, switch to another one?
@Showfom
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Showfom commented Dec 22, 2022

You can use dnsdist as your upstream for load balancer and failover

@kristoftorok
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Hmm, I'll show you what I'd like to do.

Screenshot from 2022-12-22 16-09-59

@kristoftorok
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If you connect to only one dns server(dnsdist) then it is a Single Point of Failure.

Nginx will not know whether DoH Proxy 1 can resolve or not if DNSdist 1 dies. Therefore, in case of a fail, it will still route traffic to the "faulty" DoH server.

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@Showfom @kristoftorok