設置Apache使用內部代理服務器（代理鏈？）

Question

我有一種情況，我需要通過內部代理服務器將請求路由到Apache之前重定向到外部網站，設置是這樣的：

Browser Request --> Apache --> Internal Proxy Server --> External Site 

沒有代理服務器我使用的代理服務器處理的改寫（[P]）

RewriteRule ^/somepath/(.*) http://www.externalsite.com/$1 [P,QSA,L] 

我發現setting up apache behind a forward proxy這看起來好像是我想要的設置完成重定向，並建議我試試以下指令：

ProxyPass /somepath/ http://www.externalsite.com/ 
ProxyPassReverse /somepath/ http://www.externalsite.com/ 
ProxyRemote http://www.externalsite.com/ http://internal.proxy.ip.addy:8080 

當我設置此我有一個503和下面的Apache日誌條目：在代理服務器日誌

[Thu Apr 11 07:47:14 2013] [debug] mod_proxy_http.c(1973): proxy: HTTP: serving URL http://www.externalsite.com/somefile.html 
[Thu Apr 11 07:47:14 2013] [debug] proxy_util.c(2011): proxy: HTTP: has acquired connection for (www.externalsite.com) 
[Thu Apr 11 07:47:14 2013] [debug] proxy_util.c(2067): proxy: connecting http://www.externalsite.com/somefile.html to www.externalsite.com:80 
[Thu Apr 11 07:47:14 2013] [debug] proxy_util.c(2193): proxy: connected http://www.externalsite.com/somefile.html to internal.proxy.ip.addy:8080 
[Thu Apr 11 07:47:14 2013] [debug] proxy_util.c(2444): proxy: HTTP: fam 2 socket created to connect to www.externalsite.com 
[Thu Apr 11 07:47:35 2013] [error] (OS 10060)A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. : proxy: HTTP: attempt to connect to internal.proxy.ip.addy:8080 (www.externalsite.com) failed 

沒有被記錄下來，我知道代理服務器的工作，如果我將它設置明確在瀏覽器和加載externalsite.com

任何想法？

Answer 1

當連接到代理服務器時，最終導致vmware IP地址問題......上述指示似乎正確代理Apache到代理服務器。