Add the following to the /etc/sysconfig/httpd

OPTIONS="-DSLAVE"
export MASTER_SERVER="SERVICENET IP HERE"

Now you add the following to the apache configuration file
Example wordpress lsync apache configuration entry:

        <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>

Note: