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From Boris B <>
Subject [users@httpd] Apache proxy server - in case of wrong credentials, getting 401 instead of 407
Date Wed, 16 Nov 2011 00:26:08 GMT

I have a very simple setup: Apache back-end server running behind Apache reverse proxy server.

Using 2.2.21 and running on Windows XP.
Generally, it is working as expected - traffic reaching back-end via proxy and responses from
back-end server returning to the client. 
Basic and Digest authentication working fine (based on AuthType value) 
The problem:    When I send wrong credentials, proxy server replies with error 401 instead
of 407, and sending "Authentication" header instead of "Proxy-Authentication" header. 
Below the changes I added to default configuration file: 
LoadModule auth_digest_module modules/ 
LoadModule proxy_module modules/ 
LoadModule proxy_http_module modules/ 
LoadModule ssl_module modules/ 
ProxyRequests off 
<Location /mirror/1/> 
 AuthType Basic 
 AuthDigestDomain / 
 AuthDigestAlgorithm MD5 
 AuthDigestNcCheck Off 
 AuthName "WS Group@ipoffice" 
 AuthUserFile C:/pwd.txt 
 Require valid-user 
Include conf/extra/httpd-ssl.conf 
Any ideas, suggestions would be greatly appretiated. 
Thank you.   		 	   		  
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