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DNSSEC support for Windows #338

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foxcpp opened this issue Mar 7, 2021 · 2 comments
Open

DNSSEC support for Windows #338

foxcpp opened this issue Mar 7, 2021 · 2 comments
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good first issue Easy to do, good for newcomers. help wanted We need your help with this one.

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@foxcpp
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foxcpp commented Mar 7, 2021

The problem is obtaining system DNS configuration for use in resolver code. The relevant function is NewExtResolver in framework/dns/dnssec.go.

According to https://stackoverflow.com/a/13417318 comments it can be read from registry (DhcpNameServer or NameServer for each interface). Need to figure out which value should be preferred if there are multiple interfaces (or just use them all?).
@foxcpp foxcpp added help wanted We need your help with this one. good first issue Easy to do, good for newcomers. labels Mar 7, 2021
@foxcpp
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foxcpp commented Jul 5, 2021

I did some reason and it seems like Windows's DNS API does not expose information about DNSSEC status even for Windows versions that have the security-aware client implementation.

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foxcpp commented Jul 5, 2021

Therefore extracting DNS configuration from registry and querying servers directly seems to be the only way to obtain security information necessary for maddy security policies.

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