ANYBODY? WE STILL NEED THAT!

...am giving away everything I have.

layout: we'd like to use mod_proxy with mod_rewrite together to replace hostname before submitting it to upstream proxy.

that is, user types, for example, http://www.icq.com/; then we rewrite it with http://10.0.2.7/.

so far we've managed to set up mod_proxy (it worx like any normal proxy). Now, when we add
<IfModule mod_rewrite.c>
 RewriteEngine On

 RewriteCond     %{HTTP_HOST}     ^.*\.icq\.com
 RewriteRule  ^/(.*)$  http://10.0.2.7/$1  [R]
</IfModule>

nothing happens. what should be correct rewrite rules/conditions ?
LVL 3
andYetAnotherLoginNameAsked:
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LunchyConnect With a Mentor Commented:
Closed, 260 points refunded.
Lunchy
Friendly Neighbourhood Community Support Admin
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rjkimbleCommented:
What are you trying to accomplish exactly? You can incorporate proxying into your rewrite rules, but I have never done that. It seems to me that the point of mod_proxy is to make the browser think it's talking to one server while behind the scenes the conversation is being handed off to a second server. The point of mod_rewrite is to explicitly redirect the browser from the first server to the second.

You might consider adding an "L" to the "R" in your RewriteRule. Otherwise mod_rewrite keeps on looking for other rules to match, which is probably not what you want.
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andYetAnotherLoginNameAuthor Commented:
We need to "filter" out some of addresses and replace them with ours before submitting to mod_proxy.
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rjkimbleCommented:
How about using the P flag as a rewrite rule?

For example:

<IfModule mod_rewrite.c>
 RewriteEngine On

 RewriteCond     %{HTTP_HOST}     ^.*\.icq\.com
 RewriteRule  ^/(.*)$  http://10.0.2.7/$1  [R,L]

 RewriteRule (your proxy rules goes here)
</IfModule>

The Apache docs for mod_rewrite give examples on using the P flag.
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andYetAnotherLoginNameAuthor Commented:
In this case 10.0.2.7 is local address. But, even if it was not, mod_rewrite is envolved before mod_proxy and the key problem is, as rewrite log shows, that no changes to URL are made.

Thus, it is about conditions/rules.
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rjkimbleCommented:
Are you sure that mod_rewrite is involved before mod_proxy? The order in which the modules are loaded affects the order in which they process requests. Is it possible that mod_proxy is firing first and sending the request along its way before mod_rewrite gets a chance to chime in? You might try inverting the order in which the two modules are loaded in httpd.conf (or whatever included file the import statements occur).
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andYetAnotherLoginNameAuthor Commented:
When I do that, rewrite log gets empty - because all URLs were processed by mod_proxy, I think. So I guess it is not the reason.
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andYetAnotherLoginNameAuthor Commented:
we have solved this. the key was "proxy:" part.

RewriteCond %{HTTP_HOST} ^(www\.)icq\.com [NC]
RewriteRule   ^proxy:http://www.icq.com/(.*)  http://205.188.248.121/$1 [P]

i want my points refunded.
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rjkimbleCommented:
That's one I haven't seen before. You deserve your points back. Please don't ask to delete the question, however. The answer is good to know.
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