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The following page has been changed by pctony:
http://wiki.apache.org/httpd/ScratchPad/ProxyForOWA

The comment on the change is:
added new scratchpad for apache and owa proxy

New page:
(!) '''This is still in progress.  Please do not modify''' (!)

= Enable Apache as a Proxy For OWA =

If you want to use Apache as a Front-End proxy for an OWA service you are going 
to need several modules.

 1. mod_SSL
 1. mod_proxy
 1. mod_proxy_http
 1. mod_proxy_connect

In this recipe we will not go into detail on how to configure an SSL enabled 
!VirtualHost, or on how to install modules.  If you need help with any of these 
please consult the Apache Docs.


== Load Modules ==
You will need to modify your Apache config file (usually httpd.conf) to include 
the following lines to enable the modules:

{{{
LoadModule   proxy_module            modules/mod_proxy.so
LoadModule   proxy_http_module       modules/mod_proxy_http.so
LoadModule   proxy_connect_module    modules/mod_proxy_connect.so
LoadModule   ssl_module              modules/mod_ssl.so
}}}


== Proxy Directives ==
Now in your SSL enabled !VirtualHost add the following:

{{{
RequestHeader set Front-End-Https "On"

ProxyPass /exchange http://owa.yourdomain.tld/exchange/
ProxyPass /exchweb http://owa.yourdomain.tld/exchweb/
ProxyPass /public http://owa.yourdomain.tld/public/
ProxyPass /iisadmpwd http://owa.yourdomain.tld/iisadmpwd/

ProxyPassReverse /exchange http://owa.yourdomain.tld/exchange/
ProxyPassReverse /exchweb http://owa.yourdomain.tld/exchweb/
ProxyPassReverse /public http://owa.yourdomain.tld/public/
ProxyPassReverse /iisadmpwd http://owa.yourdomain.tld/iisadmpwd/

CacheDisable *
}}}
''n.b. Make sure that you replace owa.yourdomain.tld with your domain name.''


== Hosts File ==
Now you need to modify your local hosts file, this is too make the server pass 
the traffic to the internal server, on a different IP address.

In ''/etc/hosts'' add:

{{{
192.168.1.1     owa.yourdomain.tld
}}}

Now in your ''/etc/host.conf'' ensure that the hosts file is checked before any 
other name resolution service, i.e.:

{{{
order hosts, bind
multi on
}}}

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