This tutorial explains how you can list all current iptables rules on a RedHat / CentOS Linux server, and how you can clear / flush current iptables rules.
How to list current iptables rules
Below command will list of current iptables rules of your CentOS / RedHat Linux server.
iptables -L
How to Clear / Flush iptables rules
Use below command to delete / clear / flush all current iptables rules of your CentOS / RedHat Linux server.
iptables -F
If your server went down after flushing iptables, please refer to following tutorials:
Solution – Server Down after Flushing IPtables
