The documentation said
http://3cx.org/item/46
My configuration is
<VirtualHost 192.168.1.12>
RequestHeader set Front-End-Https "On"
ProxyRequests Off
ProxyPreserveHost On
AddDefaultCharset ISO-8859-1
ProxyPass /exchange http://hera.conama.local/exchange
ProxyPassReverse /exchange http://hera.conama.local/exchange
ProxyPass /exchweb http://hera.conama.local/exchweb/
ProxyPassReverse /exchweb http://hera.conama.local/exchweb/
ProxyPass /public http://hera.conama.local/public/
ProxyPassReverse /public http://hera.conama.local/public/
ProxyPass /iisadmpwd http://hera.conama.local/iisadmpwd/
ProxyPassReverse /iisadmpwd http://hera.conama.local/iisadmpwd/
ServerAdmin psilva@conama.cl
ServerName correos.conama.cl
ErrorLog logs/correos.conama.cl-error_log
CustomLog logs/correos.conama.cl-access_log common
CacheDisable *
Options Indexes MultiViews
</VirtualHost>
I get the following errors in apache logs
[Wed Nov 22 09:14:36 2006] [error] [client 10.100.104.100] proxy: error reading status line from remote server hera.conama.local, referer: http://correos.conama.cl/exchange/psilva/?Cmd=navbar
[Wed Nov 22 09:14:36 2006] [error] [client 10.100.104.100] proxy: Error reading from remote server returned by /exchweb/img/task-lg.gif, referer: http://correos.conama.cl/exchange/psilva/?Cmd=navbar
[Wed Nov 22 09:15:21 2006] [error] [client 10.100.104.100] proxy: error reading status line from remote server hera.conama.local, referer: http://correos.conama.cl/exchange/psilva/Inbox/?Cmd=contents
[Wed Nov 22 09:15:21 2006] [error] [client 10.100.104.100] proxy: Error reading from remote server returned by /exchweb/img/dumpster.gif, referer: http://correos.conama.cl/exchange/psilva/Inbox/?Cmd=contents
[Wed Nov 22 09:16:36 2006] [error] [client 10.100.104.100] proxy: error reading status line from remote server hera.conama.local, referer: http://correos.conama.cl/exchange/psilva/Inbox/?Cmd=contents
[Wed Nov 22 09:16:36 2006] [error] [client 10.100.104.100] proxy: Error reading from remote server returned by /exchweb/img/flg-empty.gif, referer: http://correos.conama.cl/exchange/psilva/Inbox/?Cmd=contents