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Transparent Proxy with URL Rewriting

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Special Forums IP Networking Transparent Proxy with URL Rewriting
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Old 03-05-2012
Transparent Proxy with URL Rewriting
All traffic on the LAN is routed through a single machine and filtered using iptables. I'd like to redirect this traffic to a transparent proxy running on the same machine that will rewrite the URL if it matches a specified regex, in which case the user will be redirected to a local server. In other words, all HTTP requests should flow through as usual unless the user attempts to navigate to, say, "xyz.com," in which case the proxy will send the user to Apache running locally with a page displaying something like "Sorry, you can't go here." I have already investigated Squid and its URL rewriting component, but it seems terribly complicated to configure and a bit overkill since I won't be using 98% of its other features. Is there a free program other than Squid I could use, or perhaps someone could provide me with some resources for writing a program myself if it isn't too complicated?
Last edited by crottyan; 03-05-2012 at 05:46 PM..
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LEARN ABOUT DEBIAN

pacparser_find_proxy

pacparser_find_proxy(3) 				     Library Functions Manual					   pacparser_find_proxy(3)

NAME

       pacparser_find_proxy - Finds proxy for a given URL and Host.

SYNOPSIS

       #include <pacparser.h>

       char *pacparser_find_proxy
       (
	    const char *url,
	    const char *host
       );

PARAMETERS

       const char *url
	      URL to find proxy for.

       const char *host
	      Host part of the URL.

DESCRIPTION

       Finds  proxy  for  a  given  URL  and  Host.  This  function  should be called only after pacparser engine has been initialized (using pac-
       parser_init) and pac script has been parsed (using pacparser_parse_pac_file or pacparser_parse_pac_string).

RETURNS

       Proxy string on sucess and NULL on error.

SEE ALSO

       pacparser_version(3),   pacparser_init(3),   pacparser_parse_pac_file(3),   pacparser_parse_pac_string(3),   pacparser_parse_pac(3),   pac-
       parser_just_find_proxy(3), pacparser_cleanup(3), pacparser_setmyip(3), pacparser_enable_microsoft_extensions(3)

c2man pacparser.h						   14 March 2011					   pacparser_find_proxy(3)