Re: [users@httpd] IP based redirect with mod_rewrite

[Priya Vadlakonda (Contractor)]

If I remember right, I think when I set the log for debugging

The rule does not seem to work as expected and is checking proxy ip instead of 
client ip

Anyway, to be sure I will set up the rule yet again and send you the log 
snippet.

Thanks
Priya

________________________________

From: Igor Cicimov 
To: users@httpd.apache.org 
Sent: Wed May 05 18:27:11 2010
Subject: Re: [us...@httpd] IP based redirect with mod_rewrite 


I wonder why the %{REMOTE_ADDR} approach is failing? Are you getting a wrong 
REMOTE_ADDR or your rule is not working? Can you please post your rewrite rule 
for that case and appropriate rewrite logs with RewriteLogLevel set as high as 
possible for debugging?

You can also try to combine SetEnvIf and mod_rewrite for Remote_Addr parameter 
but if the above try is failing this one should be failing too since 
practically both are checking the same variable.

Igor 


On Thu, May 6, 2010 at 6:09 AM, Priya Vadlakonda (Contractor) 
<priya.vadlako...@ucop.edu> wrote:


        Hi

         

        How do I set up a rule in Apache( If at all that is possible) to 
redirect traffic based on the IP address of the client.

         

        Here is the set up of the env

         

        There is a reverse proxy (F5 LTM) that does SSL offloading and this is 
the first point the user hits and this does load balancing across our Apache 
Web Servers.

         

        So, we have Apache as a proxy server that sits behind the firewall and 
this is the second entry point.

         

        The problem is I would need to set up a rewrite rule in Apache that 
diverts user to a web page depending on the original IP address of the client.

         

        We run Apache v2 and use {X-Forwarded-For}i feature that enables us to 
record the IP address of the client in the access log.

         

        In the access log I get both  the F5 proxy IP and also the original 
client IP.

         

        wsad...@dolores:/etc/apache2> rpm -qa | grep apache2

        apache2-2.0.49-27.38

        apache2-worker-2.0.49-27.38

         

        Now the condition and rule

         

        As soon as the client hits the F5 and the request is sent to Apache, I 
need Apache to make a decision by getting the actual client IP and routing to 
the appropriate web page.

         

        Say if the user is accessing a URI /* and the request is coming from 
within 128.48.0.0/16 or ucop.edu domain

         

        I need users to get to https://sseqa.ucop.edu/* 

         

        For any other client IP requesting the same URI, Apache should make a 
decision to re route the request to a different site https://--------

         

        How do I do that?

         

        Any support is appreciated.

         

        I tried several ways to establish this but each time it fails. I don’t 
have the failure logs for one particular attempt.

         

        %{REMOTE_ADDR}  

        %{HTTP:X-FORWARDED-FOR}

        %{REMOTE_HOST}  - When trying for a domain based redirect

         

        Thanks

        Priya