The top two rules of my iptables config file:
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
What are they saying ? First open everything up from anywhere to anywhere but
what am I opening up besides udp and tcp protocols what does all include exactly??
Also on the same page I would love to find a book that only covers iptables which is not a cheat sheet book. I mean something that really explains how it functions would be nice.
I have a basic understanding but more knowledge never hurts