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System.Net.NameResolution.Tests.GetHostEntryTest.DnsGetHostEntry_LocalhostWithTrailingDot_ReturnsLoopback fails with System.Net.Sockets.SocketException : Name does not resolve #129204
Description
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1456728
Build error leg or test failing: System.Net.NameResolution.Tests.GetHostAddressesTest.DnsGetHostAddresses_LocalhostWithTrailingDot_ReturnsLoopback
Pull request: #129188
Error Message
DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.
Fill the error message using step by step known issues guidance.
{
"ErrorMessage": "System.Net.Sockets.SocketException : Name does not resolve",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1456728
Error message validated: [System.Net.Sockets.SocketException : Name does not resolve]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 6/10/2026 1:23:17 AM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 2 | 12 |
Activity
MihuBot commentedon Jun 10, 2026
I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):
MihuBot commentedon Jun 10, 2026
cc: @dotnet/ncl
[System.Net.NameResolution] Fall back to localhost when `localhost.` …
[System.Net.NameResolution] Fall back to localhost when `localhost.` …