This software script can reset the Linux firewall, iptables, to its default values, effectively wiping any previous configurations.
The script makes use of the IPTABLES variable to ensure that the firewall is reset correctly. It first sets the default policies in the filter, nat, and mangle tables to accept packets, then flushes all the rules in the filter and nat tables. Finally, all chains that aren't default in the filter and nat tables are erased.
Overall, the script is a simple yet effective tool for anyone looking to reset their Linux firewall to its default settings. Its ease of use and reliable performance make it a must-have for anyone concerned about the security of their system. So why not give it a try and see for yourself how well it works?