Add the following to the /etc/sysconfig/httpd
<sxh bash>
OPTIONS="-DSLAVE"
export MASTER_SERVER="SERVICENET IP HERE"
</sxh>
\\
Now you add the following to the apache configuration file
\\
Example wordpress lsync apache configuration entry:
<sxh bash>
        <IfDefine SLAVE>
          RewriteEngine On
          ProxyPreserveHost On

          ProxyPass /wp-admin/ http://${MASTER_SERVER}/wp-admin/
          ProxyPassReverse /wp-admin/ http://${MASTER_SERVER}/wp-admin/

          RewriteCond %{REQUEST_METHOD} =POST
          RewriteRule . http://${MASTER_SERVER}%{REQUEST_URI} [P]
        </IfDefine>
</sxh>
==Note:== 
You will need to make sure the proxy_http is enabled!