WCF wsDualHttpBinding无法在Internet上工作 [英] WCF wsDualHttpBinding not working over internet

问题描述

您好专家，

我使用wsDualHttpBinding开发了一个应用程序，其中WCF服务托管在IIS上，客户端是Windows应用程序.
我的应用程序在Intranet中运行正常，但我不是
有防火墙问题.
请告诉我如何在我的服务和客户端位于防火墙后面的情况下通过Intranet进行工作.

Hello Experts,

I have developed an application using wsDualHttpBinding  where WCF Service is hosted on IIS and client is windows application.
My application is working fine in intranet, but I am not able to make it working over internet.
There is firewall issue.
Please tell me how can I make working it over intranet while my service as well as client are behind the firewall.

推荐答案

问题是WSDualHttpBinding使用两个连接:一个从客户端到服务的出站连接，一个从服务到客户端的入站连接.

出站连接不是问题，但是，通常将防火墙配置为阻止与任意计算机的入站连接-您可能会遇到两个问题:

1)防火墙将阻止入站连接
2)客户端可能位于非公共IP地址上

，由于这些问题，WSDualHttpBinding并不真正适用于以太网部署.您真的需要使用HTTP吗? NetTcpBinding使用单个客户端启动的连接，该连接允许双工

The problem is that the WSDualHttpBinding uses two connections: one outbound from the client to the service and one inbound to the client from the service.

In general the outbound connection is not a problem, however, normally firewalls are configured to prevent inbound connections to arbitrary machines - you are likely to have two issues:

1) the firewall will prevent the inbound connection
2) the client is likely to be on a non-pulblic IP address

Because of these issues WSDualHttpBinding is not really suitable for internet deployment. Do you really need to use HTTP? The NetTcpBinding uses a single client initiated connection that allows duplex

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