[NuGet.org FAQ] DNS failures from V3 API, for Alpine Linux customers. (…

…#3305) * nuget.org faq * update * update * Address feedback * Trigger CI * Trigger CI --------- Co-authored-by: zhhyu <[email protected]>
NuGet · Jun 11, 2024 · 070022c · 070022c
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diff --git a/docs/nuget-org/nuget-org-faq.yml b/docs/nuget-org/nuget-org-faq.yml
@@ -86,6 +86,9 @@ sections:
           > [!Note]
           > These environment variables are available since [.NET CLI](https://learn.microsoft.com/nuget/reference/dotnet-commands) (.NET SDK) 6.0.100, [NuGet CLI](https://learn.microsoft.com/nuget/reference/nuget-exe-cli-reference) 6.0, Visual Studio 2022 version 17.0 and corresponding MSBuild version. See [NuGet Release Notes](https://learn.microsoft.com/nuget/release-notes/).
 
+          > [!Important]
+          > NuGet.org recommends Alpine Linux users to upgrade to Alpine Linux 3.18.0 or newer. These versions support TCP fallback in the DNS resolver. If you use older versions of Alpine Linux that only support DNS over UDP, you may encounter DNS failures when accessing the [V3 API](https://learn.microsoft.com/nuget/nuget-org/overview-nuget-org#api-endpoint-for-nugetorg).
+
           If that version of NuGet client continues to fail, [contact support](https://www.nuget.org/policies/Contact) and provide additional connection troubleshooting information including:
 
           - The package sources you're using