Login or Register to Ask a Question and Join Our Community


IP Networking

Transparent Proxy with URL Rewriting

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Special Forums IP Networking Transparent Proxy with URL Rewriting
# 1  
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..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Issue setup Transparent proxy and Gateway using Squid on CentOS 7

Hello, We are migrating our gateways from CentOS 6 to CentOS 7 and for setting up a transparent proxy using squid and Firewalld i am using below configuration. #Firewalld configurations firewall-cmd --permanent --zone=public --add-forward-port=port=80:proto=tcp:toport=3128:toaddr=LAN_IP... (4 Replies)
Discussion started by: sunnysthakur
4 Replies

2. Shell Programming and Scripting

Reading URL using Mechanize and dump all the contents of the URL to a file

Hello, Am very new to perl , please help me here !! I need help in reading a URL from command line using PERL:: Mechanize and needs all the contents from the URL to get into a file. below is the script which i have written so far , #!/usr/bin/perl use LWP::UserAgent; use... (2 Replies)
Discussion started by: scott_cog
2 Replies

3. UNIX for Dummies Questions & Answers

Awk: print all URL addresses between iframe tags without repeating an already printed URL

Here is what I have so far: find . -name "*php*" -or -name "*htm*" | xargs grep -i iframe | awk -F'"' '/<iframe*/{gsub(/.\*iframe>/,"\"");print $2}' Here is an example content of a PHP or HTM(HTML) file: <iframe src="http://ADDRESS_1/?click=5BBB08\" width=1 height=1... (18 Replies)
Discussion started by: striker4o
18 Replies

4. Shell Programming and Scripting

Need help with a shell script:Config Transparent Proxy using Shell

I want to config Transparent Proxy using Shell Script. I have more questions<exercise of me :D>: + Check that the squid is installed or not install and version is installed +Allows users to choose to run a transparent proxy or not +Perform configuration and turn on service in accordance... (0 Replies)
Discussion started by: kaka287
0 Replies

5. IP Networking

Software/tool to route an IP packet to proxy server and capture the Proxy reply as an

Hi, I am involved in a project on Debian. One of my requirement is to route an IP packet in my application to a proxy server and receive the reply from the proxy server as an IP packet. My application handles data at the IP frame level. My application creates an IP packet(with all the necessary... (0 Replies)
Discussion started by: Rajesh_BK
0 Replies

6. Shell Programming and Scripting

url calling and parameter passing to url in script

Hi all, I need to write a unix script in which need to call a url. Then need to pass parameters to that url. please help. Regards, gander_ss (1 Reply)
Discussion started by: gander_ss
1 Replies

7. UNIX for Advanced & Expert Users

url calling and parameter passing to url in script

Hi all, I need to write a unix script in which need to call a url. Then need to pass parameters to that url. please help. Regards, gander_ss (1 Reply)
Discussion started by: gander_ss
1 Replies

8. IP Networking

SQUID Transparent Proxy Server

hi guys! We are setting up Squid Server. we want the server to be transparent. But I don't know how will i be able to set the network up. is it possible to set the squid server in the same LAN with the Squid Client and still functions as a transparent server? if so, can anybody help me do it? ... (1 Reply)
Discussion started by: init6_
1 Replies

9. IP Networking

Squid Proxy URL rewriting

I have an architecture as below <> <> There is a program in the AIX server which sends SMS to the internet, by sending HTTP request to the SMS processing server. Like, http://smsserver/mysms=test However the application does not have an option to specify where the Proxy server... (1 Reply)
Discussion started by: firdousamir
1 Replies

10. Cybersecurity

IPNAT / Transparent proxy loops...

Hi! My situation: I have an OpenBSD firewall/proxy (192.168.0.1), running IPF/IPNAT w/ Squid as transparent proxy. This machine is configured to be gateway to the network. This works great, all the clients WWW-requests on the internal network are rerouted to the proxyport by this... (0 Replies)
Discussion started by: indo1144
0 Replies
Login or Register to Ask a Question

LEARN ABOUT MOJAVE

curlopt_proxy

CURLOPT_PROXY(3)					     curl_easy_setopt options						  CURLOPT_PROXY(3)

NAME

       CURLOPT_PROXY - set proxy to use

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY, char *proxy);

DESCRIPTION

       Set the proxy to use for the upcoming request. The parameter should be a char * to a zero terminated string holding the host name or dotted
       numerical IP address. A numerical IPv6 address must be written within [brackets].

       To specify port number in this string, append :[port] to the end of the host name. The proxy's port number may optionally be specified with
       the separate option CURLOPT_PROXYPORT(3). If not specified, libcurl will default to using port 1080 for proxies.

       The proxy string may be prefixed with [scheme]:// to specify which kind of proxy is used.

	      http://
		     HTTP Proxy. Default when no scheme or proxy type is specified.

	      https://
		     HTTPS Proxy. (Added in 7.52.0 for OpenSSL, GnuTLS and NSS)

	      socks4://
		     SOCKS4 Proxy.

	      socks4a://
		     SOCKS4a Proxy. Proxy resolves URL hostname.

	      socks5://
		     SOCKS5 Proxy.

	      socks5h://
		     SOCKS5 Proxy. Proxy resolves URL hostname.

       Without a scheme prefix, CURLOPT_PROXYTYPE(3) can be used to specify which kind of proxy the string identifies.

       When  you  tell	the library to use a HTTP proxy, libcurl will transparently convert operations to HTTP even if you specify an FTP URL etc.
       This may have an impact on what other features of the library you can use, such as CURLOPT_QUOTE(3) and similar FTP  specifics  that  don't
       work unless you tunnel through the HTTP proxy. Such tunneling is activated with CURLOPT_HTTPPROXYTUNNEL(3).

       libcurl	respects the environment variables http_proxy, ftp_proxy, all_proxy etc, if any of those are set. The CURLOPT_PROXY(3) option does
       however override any possibly set environment variables.

       Setting the proxy string to "" (an empty string) will explicitly disable the use of a proxy, even if there is an environment  variable  set
       for it.

       A proxy host string can also include protocol scheme (http://) and embedded user + password.

       The application does not have to keep the string around after setting this option.

DEFAULT

       Default is NULL, meaning no proxy is used.

       When you set a host name to use, do not assume that there's any particular single port number used widely for proxies. Specify it!

PROTOCOLS

       All except file://. Note that some protocols don't do very well over proxy.

EXAMPLE

       TODO

AVAILABILITY

       Since 7.14.1 the proxy environment variable names can include the protocol scheme.

       Since 7.21.7 the proxy string supports the socks protocols as "schemes".

       Since 7.50.2, unsupported schemes in proxy strings cause libcurl to return error.

RETURN VALUE

       Returns CURLE_OK if proxies are supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

       CURLOPT_PROXYPORT(3), CURLOPT_HTTPPROXYTUNNEL(3), CURLOPT_PROXYTYPE(3)

libcurl 7.54.0							 February 06, 2017						  CURLOPT_PROXY(3)