This guide covers managing iptables firewall rules on Linux systems, focusing on listing and deleting rules rather than creating them. It explains how to view rules using both specification format (iptables -S) and table format (iptables -L), including packet and byte counters. The tutorial demonstrates deleting individual

18m read timeFrom digitalocean.com
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Table of contents
IntroductionPrerequisitesListing Rules by SpecificationListing Rules as TablesResetting Packet Counts and Aggregate SizeDeleting Rules by SpecificationDeleting Rules by Chain and NumberFlushing ChainsFlushing All Rules, Deleting All Chains, and Accepting AllDifferences between iptables -D and iptables -FDeleting Rules in Custom ChainsCommon Errors and DebuggingFAQsConclusion

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