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Runtime configuration options for networking

  • Artikkeli

HTTP/2 protocol

  • Configures whether support for the HTTP/2 protocol is enabled.
  • If you omit this setting, support for the HTTP/2 protocol is enabled. This is equivalent to setting the value to true.
Setting name Values
runtimeconfig.json System.Net.Http.SocketsHttpHandler.Http2Support false - disabled
true - enabled
Environment variable DOTNET_SYSTEM_NET_HTTP_SOCKETSHTTPHANDLER_HTTP2SUPPORT 0 - disabled
1 - enabled

This configuration setting doesn't have a specific MSBuild property. However, you can add a RuntimeHostConfigurationOption MSBuild item instead. Use the runtimeconfig.json setting name as the value of the Include attribute. For an example, see MSBuild properties.

SPN creation in HttpClient (.NET 6 and later)

  • Impacts generation of service principal names (SPN) for Kerberos and NTLM authentication when Host header is missing and target is not running on default port.
  • .NET 6 and later versions don't include the port in the SPN, but the behavior is configurable.
Setting name Values
runtimeconfig.json System.Net.Http.UsePortInSpn true - includes port number in SPN, for example, HTTP/host:port
false - does not include port in SPN, for example, HTTP/host
Environment variable DOTNET_SYSTEM_NET_HTTP_USEPORTINSPN 1 - includes port number in SPN, for example, HTTP/host:port
0 - does not include port in SPN, for example, HTTP/host

This configuration setting doesn't have a specific MSBuild property. However, you can add a RuntimeHostConfigurationOption MSBuild item instead. Use the runtimeconfig.json setting name as the value of the Include attribute. For an example, see MSBuild properties.