如何配置 apache 服务器以允许 wget 使用代理?

How to configure apache server to allow wget with proxy?

我对 apache httpd 完全陌生

我将主机 ServerHost1 设置为带有 h​​ttpd

的文件服务器
# httpd -v
Server version: Apache/2.4.6 (Red Hat Enterprise Linux)
Server built:   Dec  2 2014 08:09:42

我已经把文件 TestFile.txt 放在了 /var/www/html/TestDir/TestFile.txt

我修改了部分httpd.conf如下

<Directory />
    Order deny,allow
    Allow from all
</Directory>

在具有完全 Internet 访问权限的测试主机 TestHost1 上,我可以使用 wget

下载我的文件
TestHost1]# wget http://ServerHost1/TestDir/TestFile.txt
--2016-03-17 13:39:12--  http://ServerHost1/TestDir/TestFile.txt
Resolving ServerHost1 (ServerHost1)... <IP address>
Connecting to ServerHost1 (ServerHost1)|<IP address>|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2859976598 (2.7G) [application/octet-stream]
Saving to: ‘TestFile.txt’

2% [>                                                            ] 60,645,376  24.0MB/s 

在位于半隔离网络 TestHost2 上的主机上,我必须使用代理才能使 wget 工作。它适用于 google

TestHost2]# wget google.ca
--2016-03-17 13:53:26--  http://google.ca/
Resolving proxy.com (proxy.com)... <ProxyIP>
Connecting to proxy.com (proxy.com)|<ProxyIP>|:3128... connected.
Proxy request sent, awaiting response... 301 Moved Permanently
Location: http://www.google.ca/ [following]
--2016-03-17 13:53:26--  http://www.google.ca/
Reusing existing connection to proxy.com:3128.
Proxy request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘index.html’

    [ <=>                                   ] 19,928      --.-K/s   in 0.1s

2016-03-17 13:53:27 (159 KB/s) - ‘index.html’ saved [19928]

但是,当我尝试从 ServerHost1 获取我的文件时,出现错误 503:服务不可用

TestHost2]# wget http://ServerHost1/TestDir/TestFile.txt
--2016-03-17 13:57:13--  http://ServerHost1/TestDir/TestFile.txt
Resolving proxy.com (proxy.com)...<ProxyIP>
Connecting to proxy.com (proxy.com)|<ProxyIP>|:3128... connected.
Proxy request sent, awaiting response... 503 Service Unavailable
2016-03-17 13:57:13 ERROR 503: Service Unavailable.

所以问题是

(1) 为什么我在文件明显可用时看到 503 ServiceUnavailable(因为我可以从 testhost1 下载)?

(2) 如何配置我的 httpd.conf 文件以便 TestHost2 可以从 ServerHost1 获取文件?

也许可以尝试使用 ProxyRequests,如 Apache 文档 https://httpd.apache.org/docs/2.4/mod/mod_proxy.html

中所述