无法在 ec2 实例上安装 ezproxy答案

【问题标题】：cannot install ezproxy on ec2 instance无法在 ec2 实例上安装 ezproxy
【发布时间】：2016-11-14 21:20:09
【问题描述】：

无法在 ec2 实例上安装 ezproxy 似乎有问题，因为它具有公共和私有 IP。我使用这种方法从 url 安装 https://www.oclc.org/support/services/ezproxy/documentation/download/install-linux.en.html 它在第 4 步和第 5 步失败错误

Checking ability to directly connect to iptest.ezproxy.com
Attempting to contact iptest.ezproxy.com by name
Connection established, sending my IP address (10.135.235.34) for testing
Waiting for response on port 0
The test results follow:

If you are using multiple IP interfaces on your system, some of
the information provided by this test may be inaccurate.

You claim to be ip-10-135-235-34.ec2.internal at address 10.135.235.34
To me, you appear to be 54.242.97.3
Since those don't match, there may be a proxy server between us.

I am now attempting to connect to your server to check for intervening
firewalls.  If there is a firewall, this may take a little while.

Trying ip-10-135-235-34.ec2.internal
Connection to ip-10-135-235-34.ec2.internal failed, trying 10.135.235.34
Connection to 10.135.235.34 failed, trying 54.242.97.3
Connection to 54.242.97.3 failed

I am unable to connect to you.  There may be a firewall between us.

Your system claims that its host name is ip-10-135-235-34.ec2.internal
That name failed to work, which may indicate a problem or may
have occurred if you have multiple IP addresses on this server.

【问题讨论】：

安装 ezproxy 时您使用了什么命令或遵循了哪些步骤？

标签： linux amazon-web-services amazon-ec2 rhel rhel6

【解决方案1】：

54.242.97.3 是你的公网 IP 地址吗？如果是这样，EZProxy 应该能够连接。仔细检查您的 EC2 安全组，确保它允许 EZProxy 需要的端口上的流量。

如果 54.242.97.3 不是您的公共 IP 地址，则您可能通过 NAT 网关进行连接。按照说明在 NAT 网关后面设置 EZProxy。

【讨论】：