I'm trying to redirect port 80 to 3000 and I'm having trouble combining it to my filter rules. Both *nat and *filter rules work correctly when used separately, but not when applied together *nat ...

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

you can use iptables-save and iptables-restore if you make complicated policies. On my personal machine, I used to just dump the rules in /etc/init.rc (before I started using iptables-restore in the ...

Most of us think of iptables strictly as a firewall tool for keeping remote attackers at bay. But did you know it also can be used to keep local users in line? The experimental match extension owner ...