I have noticed something curious that I could use some help explaining. I decided to add some logging rules to the firewall on one of my web servers and have noticed about 8 or 9 packets per minute ...

iptables -A firewall-output -p udp -m state --state NEW -m udp --dport 6666 -j ACCEPT </pre><BR><BR>With them (along with others) I can use netcat to do basic communication over UDP. However, when I ...

Iptables, more properly referred to as “iptables/netfilter” because of the two modules that are involved — the userspace module “iptables” and the kernel ...

For those of you who have taken the plunge and upgraded from kernel 2.2.X (or even 2.0.X) to 2.4.X, congratulations. If, like a number of folks, you're running some form of firewall using either ...