Hi guys,

I have smoothwall firewall running behind my adsl router. My smoothwall firewall have DMZ area for my server, I've got apache server, ssh server, and mysql server running as single server with different internal DMZ IP.

So my question is do I have to make another firewall to hardened my servers inside the dmz?? cause I think I can install guarddog firewall (internally) on every servers (all of them running linux except ssh server running OpenBSD 3.9) .

Or.. just smoothwall firewall (hardware firewall) already enough protection for my dmz ..?? it means I just hardened my servers without another firewall...



Thanks