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Iptables is a firewall that plays an essential role in network security for most Linux systems. While many iptables tutorials will teach you how to create firewall rules to secure your server, this one will focus on a different aspect of firewall management: listing and deleting rules.
In this tutorial, we will cover how to do the following iptables tasks:
- List rules
- Clear Packet and Byte Counters
- Delete rules
- Flush chains (delete all rules in a chain)
- Flush all chains and tables, delete all chains, and accept all traffic