Azure Front Door 配置了最低 TLS 1.2。后端 Azure 应用服务也配置为使用最低 TLS 1.2。
在 Windows Server 2012 R2 上使用以下代码运行 .Net Framework 4.7.1 控制台应用程序时:
class Program
{
static async Task Main(string[] args)
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
var client = new HttpClient();
try
{
var OK = await client.GetAsync("https://foo-appservice.azurewebsites.net/"); // App service.
var NotOK = await client.GetAsync("https://foo.myfoo.io/"); // Front door.
}
catch (Exception e)
{
Console.WriteLine(e);
}
Console.ReadKey();
}
}
我在第二次通话中收到以下异常。
An error occurred while sending the request.
The underlying connection was closed: An unexpected error occurred on a send.
Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
但是,在同一台服务器上使用 curl 运行它是可行的:
curl https://foo.myfoo.io/ -i --tlsv1.2 --tls-max 1.2
相同的 .net 代码在我的其他 Windows 10 笔记本电脑上运行良好。
windows server box上调用失败的原因是什么?
编辑:
我认为这与自定义域有关,因为对前门分配的域执行简单的 GET 即可。