iis - Unable to get authenticationType in ASP.NET Core Web API -


i'm writing simple asp.net core web api needs return "true" if authentication type of logged in user "kerberos", , "false" otherwise. code works is:

public ienumerable<string> get() {     if(user?.identity?.isauthenticated == true)     {         return new string[] { "true" };     }     return new string[] { "false" }; }

however, if change "isauthenticated" "authenticationtype" , check string value "kerberos" follows:

public ienumerable<string> get() {     if(user?.identity?.authenticationtype == "kerberos")     {         return new string[] { "true" };     }     return new string[] { "false" }; }

then starts throwing error 500 if run on windows server 2012 r2 based iis server. if run within visual studio (on localhost - domain-joined windows 10 machine), produces right result.

what doing wrong?


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