Linux iptables Tables (Batch 8) Cheat Sheet

Filter, NAT, and raw

Last Updated: November 21, 2025

Focus Areas

Focus
Inspect chain policies
Log dropped packets

Commands & Queries

iptables -L -v
List
iptables-save > /etc/iptables.rules
Persist
iptables -A INPUT -j LOG
Log

Summary

Tables manage Linux traffic flows.

💡 Pro Tip: Persist configs with `iptables-save`.
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