An Easy Tutorial on IP Tables and Port Knocking Feb 5, 2008, 11 :15 UTC (1 Talkback[s]) (4951 reads) (Other stories by Matt Waldo)
"Do you wish you had access to your home file server without leaving your firewall wide open to attacks? Well today's your lucky day! While you can implement this on any OS its easiest to do this on Linux. This article will show you how to lock down your firewall and implement a port knocker to let you in.
"We are going to achieve this using a Linux firewall and server, SLED 10.1 to be exact. Yes, you will be playing around with config files, but I'll give you a template you can work with so you can just copy/paste and change the things you need to change..."
