This is a continuation of my latest thread “DSL and Firewalls”.
Every so often, I will be asked a question by a peer or coworker regarding security and firewalling concepts that I would deem “shareable knowledge”. That is, I beleive others wouldbe interested in knowing the answer.
Today, I was asked by a co-worker what a Stateful Firewall was. He has heard the term but really did not fully grasp the ‘full’ concept behind it.
I say ‘full’ because he understood the state of flags suchas syn-syn/ack-ack. But that was his limit to his understanding.
So I thought I would share my answer to him here with you.
It is my hope that if you have had a yearning to know this answer or have been generally clueless about firewalling and the concept, that this helps you.
If you have a question, please feel free to ask.