Configuration Proxy/Reverse Apache

<VirtualHost url.domain.com>
ErrorLog /logs/HTTPServer/url.domain_error.log
CustomLog /logs/HTTPServer/url.domain_acces.log common

ProxyRequests On
ProxyPass / http://backend.domain.com/

ProxyRequests Off
ProxyPassReverse / http://backend.domain.com/

<Proxy http://url.domain.com>
        Order deny,allow
        Allow from All
</Proxy>
</VirtualHost>