diff --git a/samples/ActionConstraintSample.Web/Startup.cs b/samples/ActionConstraintSample.Web/Startup.cs
index 6a06bce863..d8f69e66e4 100644
--- a/samples/ActionConstraintSample.Web/Startup.cs
+++ b/samples/ActionConstraintSample.Web/Startup.cs
@@ -30,7 +30,7 @@ namespace ActionConstraintSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/CustomRouteSample.Web/Startup.cs b/samples/CustomRouteSample.Web/Startup.cs
index 829b432e2f..df5518d9fd 100644
--- a/samples/CustomRouteSample.Web/Startup.cs
+++ b/samples/CustomRouteSample.Web/Startup.cs
@@ -27,7 +27,7 @@ namespace CustomRouteSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/EmbeddedViewSample.Web/Startup.cs b/samples/EmbeddedViewSample.Web/Startup.cs
index 36885ac8c4..0daadfcba4 100644
--- a/samples/EmbeddedViewSample.Web/Startup.cs
+++ b/samples/EmbeddedViewSample.Web/Startup.cs
@@ -44,7 +44,7 @@ namespace EmbeddedViewSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/FormatFilterSample.Web/Startup.cs b/samples/FormatFilterSample.Web/Startup.cs
index bd76a8d0c8..95a2f19177 100644
--- a/samples/FormatFilterSample.Web/Startup.cs
+++ b/samples/FormatFilterSample.Web/Startup.cs
@@ -40,7 +40,7 @@ namespace FormatFilterSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/InlineConstraintSample.Web/Startup.cs b/samples/InlineConstraintSample.Web/Startup.cs
index ae380cd715..473893592b 100644
--- a/samples/InlineConstraintSample.Web/Startup.cs
+++ b/samples/InlineConstraintSample.Web/Startup.cs
@@ -39,7 +39,7 @@ namespace InlineConstraintSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/JsonPatchSample.Web/Startup.cs b/samples/JsonPatchSample.Web/Startup.cs
index 4cb04c6e9c..dab9518a0c 100644
--- a/samples/JsonPatchSample.Web/Startup.cs
+++ b/samples/JsonPatchSample.Web/Startup.cs
@@ -25,7 +25,7 @@ namespace JsonPatchSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/LocalizationSample.Web/Startup.cs b/samples/LocalizationSample.Web/Startup.cs
index 9d195ccc91..930a1d15c6 100644
--- a/samples/LocalizationSample.Web/Startup.cs
+++ b/samples/LocalizationSample.Web/Startup.cs
@@ -43,7 +43,7 @@ namespace LocalizationSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/MvcSandbox/Startup.cs b/samples/MvcSandbox/Startup.cs
index d7f3fcafdf..3c11e4f72e 100644
--- a/samples/MvcSandbox/Startup.cs
+++ b/samples/MvcSandbox/Startup.cs
@@ -33,7 +33,7 @@ namespace MvcSandbox
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/MvcSubAreaSample.Web/Startup.cs b/samples/MvcSubAreaSample.Web/Startup.cs
index e7c3d5f169..3e5a375ea3 100644
--- a/samples/MvcSubAreaSample.Web/Startup.cs
+++ b/samples/MvcSubAreaSample.Web/Startup.cs
@@ -39,7 +39,7 @@ namespace MvcSubAreaSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/TagHelperSample.Web/Startup.cs b/samples/TagHelperSample.Web/Startup.cs
index 56e2de4fe1..d67dae48ef 100644
--- a/samples/TagHelperSample.Web/Startup.cs
+++ b/samples/TagHelperSample.Web/Startup.cs
@@ -37,7 +37,7 @@ namespace TagHelperSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseIISPlatformHandlerUrl()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
diff --git a/samples/UrlHelperSample.Web/Startup.cs b/samples/UrlHelperSample.Web/Startup.cs
index cac4203062..53538feb25 100644
--- a/samples/UrlHelperSample.Web/Startup.cs
+++ b/samples/UrlHelperSample.Web/Startup.cs
@@ -38,7 +38,7 @@ namespace UrlHelperSample.Web
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/ApiExplorerWebSite/Startup.cs b/test/WebSites/ApiExplorerWebSite/Startup.cs
index 45c8e6eb71..3a797eeae5 100644
--- a/test/WebSites/ApiExplorerWebSite/Startup.cs
+++ b/test/WebSites/ApiExplorerWebSite/Startup.cs
@@ -45,7 +45,7 @@ namespace ApiExplorerWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseStartup<Startup>()
                 .Build();
diff --git a/test/WebSites/ApplicationModelWebSite/Startup.cs b/test/WebSites/ApplicationModelWebSite/Startup.cs
index 551903a93f..ab5395b6e8 100644
--- a/test/WebSites/ApplicationModelWebSite/Startup.cs
+++ b/test/WebSites/ApplicationModelWebSite/Startup.cs
@@ -35,7 +35,7 @@ namespace ApplicationModelWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/BasicWebSite/Startup.cs b/test/WebSites/BasicWebSite/Startup.cs
index 45aedb2504..0efc336fce 100644
--- a/test/WebSites/BasicWebSite/Startup.cs
+++ b/test/WebSites/BasicWebSite/Startup.cs
@@ -57,7 +57,7 @@ namespace BasicWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/ControllersFromServicesWebSite/Startup.cs b/test/WebSites/ControllersFromServicesWebSite/Startup.cs
index 14d5741a68..eb2057849d 100644
--- a/test/WebSites/ControllersFromServicesWebSite/Startup.cs
+++ b/test/WebSites/ControllersFromServicesWebSite/Startup.cs
@@ -40,7 +40,7 @@ namespace ControllersFromServicesWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/CorsWebSite/Startup.cs b/test/WebSites/CorsWebSite/Startup.cs
index a5154e0376..6915a0c58b 100644
--- a/test/WebSites/CorsWebSite/Startup.cs
+++ b/test/WebSites/CorsWebSite/Startup.cs
@@ -81,7 +81,7 @@ namespace CorsWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/ErrorPageMiddlewareWebSite/Startup.cs b/test/WebSites/ErrorPageMiddlewareWebSite/Startup.cs
index 95892a76f3..b7e0c4e13b 100644
--- a/test/WebSites/ErrorPageMiddlewareWebSite/Startup.cs
+++ b/test/WebSites/ErrorPageMiddlewareWebSite/Startup.cs
@@ -26,7 +26,7 @@ namespace ErrorPageMiddlewareWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/FilesWebSite/Startup.cs b/test/WebSites/FilesWebSite/Startup.cs
index 9ff9f0faf4..5c2e9bb344 100644
--- a/test/WebSites/FilesWebSite/Startup.cs
+++ b/test/WebSites/FilesWebSite/Startup.cs
@@ -28,7 +28,7 @@ namespace FilesWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/FiltersWebSite/Startup.cs b/test/WebSites/FiltersWebSite/Startup.cs
index 7055b7f103..f791479fb0 100644
--- a/test/WebSites/FiltersWebSite/Startup.cs
+++ b/test/WebSites/FiltersWebSite/Startup.cs
@@ -70,7 +70,7 @@ namespace FiltersWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/FormatterWebSite/Startup.cs b/test/WebSites/FormatterWebSite/Startup.cs
index 66ec272cc3..25e0c13a67 100644
--- a/test/WebSites/FormatterWebSite/Startup.cs
+++ b/test/WebSites/FormatterWebSite/Startup.cs
@@ -37,7 +37,7 @@ namespace FormatterWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/HtmlGenerationWebSite/Startup.cs b/test/WebSites/HtmlGenerationWebSite/Startup.cs
index c3a65c121f..b29827ba28 100644
--- a/test/WebSites/HtmlGenerationWebSite/Startup.cs
+++ b/test/WebSites/HtmlGenerationWebSite/Startup.cs
@@ -45,7 +45,7 @@ namespace HtmlGenerationWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/RazorPageExecutionInstrumentationWebSite/Startup.cs b/test/WebSites/RazorPageExecutionInstrumentationWebSite/Startup.cs
index ee1e18c4a9..07170cab4d 100644
--- a/test/WebSites/RazorPageExecutionInstrumentationWebSite/Startup.cs
+++ b/test/WebSites/RazorPageExecutionInstrumentationWebSite/Startup.cs
@@ -47,7 +47,7 @@ namespace RazorPageExecutionInstrumentationWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/RazorWebSite/Startup.cs b/test/WebSites/RazorWebSite/Startup.cs
index fea427a65e..6368d9a798 100644
--- a/test/WebSites/RazorWebSite/Startup.cs
+++ b/test/WebSites/RazorWebSite/Startup.cs
@@ -64,7 +64,7 @@ namespace RazorWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/RoutingWebSite/Startup.cs b/test/WebSites/RoutingWebSite/Startup.cs
index 98d5e1c64a..ab5813152d 100644
--- a/test/WebSites/RoutingWebSite/Startup.cs
+++ b/test/WebSites/RoutingWebSite/Startup.cs
@@ -44,7 +44,7 @@ namespace RoutingWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/SimpleWebSite/Startup.cs b/test/WebSites/SimpleWebSite/Startup.cs
index bc8ad4ff91..829b9b67bd 100644
--- a/test/WebSites/SimpleWebSite/Startup.cs
+++ b/test/WebSites/SimpleWebSite/Startup.cs
@@ -32,7 +32,7 @@ namespace SimpleWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/TagHelpersWebSite/Startup.cs b/test/WebSites/TagHelpersWebSite/Startup.cs
index 6506bfdf2c..0645408635 100644
--- a/test/WebSites/TagHelpersWebSite/Startup.cs
+++ b/test/WebSites/TagHelpersWebSite/Startup.cs
@@ -25,7 +25,7 @@ namespace TagHelpersWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/VersioningWebSite/Startup.cs b/test/WebSites/VersioningWebSite/Startup.cs
index e6311cbe02..7085eb79e5 100644
--- a/test/WebSites/VersioningWebSite/Startup.cs
+++ b/test/WebSites/VersioningWebSite/Startup.cs
@@ -29,7 +29,7 @@ namespace VersioningWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/WebApiCompatShimWebSite/Startup.cs b/test/WebSites/WebApiCompatShimWebSite/Startup.cs
index f6c11fce8a..b0c553f20d 100644
--- a/test/WebSites/WebApiCompatShimWebSite/Startup.cs
+++ b/test/WebSites/WebApiCompatShimWebSite/Startup.cs
@@ -36,7 +36,7 @@ namespace WebApiCompatShimWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();
diff --git a/test/WebSites/XmlFormattersWebSite/Startup.cs b/test/WebSites/XmlFormattersWebSite/Startup.cs
index a50ae9218a..78a97c0749 100644
--- a/test/WebSites/XmlFormattersWebSite/Startup.cs
+++ b/test/WebSites/XmlFormattersWebSite/Startup.cs
@@ -80,7 +80,7 @@ namespace XmlFormattersWebSite
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultConfiguration(args)
+                .UseDefaultHostingConfiguration(args)
                 .UseStartup<Startup>()
                 .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .Build();