The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

25.3.4 Deleting Rules in a Chain

Use the iptables -D command to delete a rule in a chain. For example, the following command deletes rule 4 from the INPUT chain: 

# iptables -D INPUT 4

To delete all rules in a chain, enter: 

# iptables -F chain

To delete all rules in all chains, enter: 

# iptables -F

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