I don't know what type of php applications you are using with apache, but with php I would recommend to use something like 'modsecurity' for apache, configuring modsecurity to your needs and have apache chrooted. For iptables, something like firehol can help you to setup iptables quickly.
-- -JM. Estos días azules y este sol de la infancia (Antonio Machado-1939) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]