protected override void OnServerStarting(ApplicationConfiguration configuration)
{
Opc.Ua.Com.ComUtils.InitializeSecurity();
Utils.Trace("The server is starting.");
base.OnServerStarting(configuration);
// it is up to the application to decide how to validate user identity tokens.
// this function creates validators for SAML and X509 identity tokens.
CreateUserIdentityValidators(configuration);
}