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From Axel-Stéphane SMORGRAV <Axel-Stephane.SMORG...@europe.adp.com>
Subject FW: [users@httpd] Re: problem with mod_rewrite rewiterule with [P](internal proxying)
Date Mon, 10 Jul 2006 17:06:11 GMT
Very strange... Apparently the list software omitted to insert the Reply-To header.

-----Original Message-----
From: Axel-Stéphane SMORGRAV 
Sent: Monday, July 10, 2006 8:23 AM
To: 'Ravish Agarwal'
Subject: RE: [users@httpd] Re: problem with mod_rewrite rewiterule with [P](internal proxying)



The entry in the rewrite log that says "go-ahead with proxy request", indicates that the request
is indeed proxied through to mgtpdma3.rau.valmet.com:7003. Now what you need to do is check
the logs on mgtpdma3.rau.valmet.com:7003 to see if the request actually came through. If it
did, what was the URL requested, and do the error logs say anything that would give a clue
about why it returned a 404 ?

-ascs

-----Original Message-----
From: Ravish Agarwal [mailto:Ravish_Agarwal@infosys.com]
Sent: Friday, July 07, 2006 5:03 PM
To: users@httpd.apache.org
Cc: Axel-Stéphane SMORGRAV
Subject: RE: [users@httpd] Re: problem with mod_rewrite rewiterule with [P](internal proxying)


Hi,

The entry in my httpd.conf file is

ProxyPassReverse /metso http://mgtpdma3.rau.valmet.com:7003/metso
SetEnv proxy-nokeepalive 1
ProxyPreserveHost On
RewriteCond %{REQUEST_URI} (.*\.jsp$)|(.*/servlet/.*)|(.*/workspace/.*)|(.*\.do$)
##WANWhitepaper.doc Page 4
###Proprietary and Confidential WAN Performance Architecture
RewriteRule ^/metso/(.*) http://mgtpdma3.rau.valmet.com:7003/metso/$1 [P]

The ewrite log shows
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(2) init rewrite engine with requested uri /metso/login.jsp
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(3) applying pattern '^/metso/(.*)' to uri '/metso/login.jsp'
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(4) RewriteCond: input='/metso/login.jsp' pattern='(.*\.jsp$)|(.*/servlet/.*)|(.*/workspace/.*)|(.*\.do$)'
=> matched
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(2) rewrite /metso/login.jsp -> http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(2) forcing proxy-throughput with http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(9) Request filename after rewrite rules: proxy:http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(9) Request path info after rewrite rules:
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(9) Request args after rewrite rules:
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(1) go-ahead with proxy request proxy:http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
[OK]

The access log of the apache shows
192.168.251.211 - - [07/Jul/2006:17:52:58 +0300] "GET /metso/login.jsp HTTP/1.1" 404 209

However If I don't use [P] tag then the external direction happens. And the entries in rewrite.log
are:
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(2) init rewrite engine with requested uri /metso/login.jsp
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(3) applying pattern '^/metso/(.*)' to uri '/metso/login.jsp'
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(4) RewriteCond: input='/metso/login.jsp' pattern='(.*\.jsp$)|(.*/servlet/.*)|(.*/workspace/.*)|(.*\.do$)'
=> matched
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(2) rewrite /metso/login.jsp -> http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(2) implicitly forcing redirect (rc=302) with http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(9) Request filename after rewrite rules: http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(9) Request path info after rewrite rules:
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(9) Request args after rewrite rules:
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(1) escaping http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp for redirect
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] [mgtpdma3.rau.valmet.com/sid#400b6420][rid#40284070/initial]
(1) redirect to http://mgtpdma3.rau.valmet.com:7003/metso/login.jsp [REDIRECT/302]

And the entries in the access log are
192.168.251.211 - - [07/Jul/2006:18:01:04 +0300] "GET /metso/login.jsp HTTP/1.1" 302 371

I am not able to understand that if I am able to use external redirection then what is the
issues with internal proxy redirection. I am stuck up since last 1 week.
Please help me.



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