iptables

Configures Netfilter firewall rules for Linux.

Last updated: 2026-07-05 Report error

Syntax

$iptables [OPTIONS]

Examples

$iptables -L

Examples

$iptables -A INPUT -p tcp --dport 80 -j ACCEPT

Typical use cases

Show rules

iptables -L

Add rule

iptables -A CHAIN RULE

Note Legacy Firewall Tool, replaced by nftables.

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