iptables articles

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Getting Started with iptables in Linux iptables command add a rule (-A --append -I --insert) allow ICMP allow lo interface Allow or deny a connection on an interface allow SSH Disable DNS resolution (-n --numeric) drop rule flush rules (-F or --flush) iptables-save command listing rules (-L --list --list-rules) reload iptables using the iptables-restore command remove a rule (-D --delete)