DnsResolver uses hardcoded DNS server

Question

DnsResolver uses hardcoded DNS server

Closed this issue 3 years ago · 10 comments

Hi,

I am using Xamarin Forms and recently updated with latest Nuget package, it works fine in simulator but on connection it is crashing when I run on physical device.

Thanks

Answer 1 · 2020-09-21T20:46:16.000Z

Please provide a traceback

Answer 2 · 2020-09-23T17:05:42.000Z

Hi,

Following is the exception which I am facing

List of configured name servers must not be empty.
Parameter name: servers..

Answer 3 · 2020-09-24T06:38:04.000Z

Do you mean Android emulator or iOS simulator? Which version? Which os version is on device?

Answer 4 · 2020-09-24T10:21:09.000Z

Hi,

Everything is working fine in Android/IOS Simulator, I am facing this crash in physical devices in Android/iois.

Answer 5 · 2020-09-24T10:44:42.000Z

I need the exact OS version for simulators and physical devices you are using

Answer 6 · 2020-09-24T11:19:56.000Z

Hi,

Physical Devices
iPhone 11 Pro , iPhone 11 Pro MAX, iPhone 6.

Simulators
iPhone 6 - iPhone 11 Pro max.

Answer 7 · 2020-09-24T11:21:36.000Z

This is NOT operating system version, let me know operating system version on simulator (e.g. iOS 13.7) and on physical device (e.g. iOS 14.0)

Answer 8 · 2020-09-24T11:22:41.000Z

I have tested on 13.7 and 14.0 as well both on simulators and physical devices.

Answer 9 · 2020-09-24T12:55:49.000Z

OK I see DnsClient package does not work on Xamarin correctly for both Android and iOS. Reverted back to own DNS resolver. Issue fixed on master, fixed version should be released on NuGet shortly

Answer 10 · 2021-09-23T19:00:14.000Z

We should revert back to DnsClient, but not use no-args constructor and pass hardcoded DNS server on mobile platforms, see MichaCo/DnsClient.NET#17 (comment)