Taken from Apache module mod_rewrite:
[quote]‘proxy|P’ (force proxy)
This flag forces the substitution part to be internally forced as a proxy request and immediately (i.e., rewriting rule processing stops here) put through the proxy module. You have to make sure that the substitution string is a valid URI (e.g., typically starting with http://hostname) which can be handled by the Apache proxy module. If not you get an error from the proxy module. Use this flag to achieve a more powerful implementation of the ProxyPass directive, to map some remote stuff into the namespace of the local server.
Notice: To use this functionality make sure you have the proxy module compiled into your Apache server program. If you don’t know please check whether mod_proxy.c is part of the
httpd -l'' output. If yes, this functionality is available to mod_rewrite. If not, then you first have to rebuild thehttpd’’ program with mod_proxy enabled.[/quote]
To my knowledge, mod_proxy is not installed on DreamHost servers.
– si-blog –
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