问题描述
我在Rackspace上有一个托管的Exchange服务器。我正在使用它来测试与我的个人Web应用程序集成的Exchange Web服务。 Rackspace提供了一个自动发现URL，通过它可以建立EWS连接。
I have a hosted Exchange server on Rackspace. I am using it to test Exchange Web Services integrated with my personal web application. Rackspace provides an Autodiscovery URL through which EWS connections can be made.
我可以在本地连接得很好。但是，当我尝试在我的登台服务器（Amazon ec2实例）上测试相同的功能时，我没有得到API响应。实际上，为最终用户提供服务的httpd线程只是无限期挂起，这意味着即使在超时间隔之后，
用户也无法在我的应用中加载任何其他页面。
I can connect just fine locally. However, when I try to test the same functionality on my staging servers (which are Amazon ec2 instances), I do NOT get an API response. In fact, the httpd thread serving the end user just hangs indefinitely, which means the user is not able to load ANY other pages in my app, even after the timeout interval.
我已经检查了apache，php甚至我的负载均衡器访问日志的错误/访问日志。这些资源都没有提供对此问题的任何见解。
I have checked the error/access logs for apache, php, and even my load balancer's access logs. None of these resources provided any insight to the problem.
正如我所说的，从我的本地副本连接到Exchange服务器没有问题网络应用。为什么会这样呢？我需要做些什么来修复我的登台服务器上的连接？
As I said, I have no problem connecting to the exchange server from my local copy of my web app. Why would this be the case? What do I need to do to fix connectivity on my staging servers?
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