How to enable and disable the iptables feature in Linux?

To enable or disable the iptables feature in Linux, you can follow these steps:

1. Enable the iptables function.
2. To check if iptables has been enabled, enter the command “sudo iptables -L”. If it displays “iptables: Firewall is not running.”, it means that it is not enabled.
3. To start the iptables service, enter the command sudo systemctl start iptables.
4. Use the command “sudo systemctl enable iptables” to automatically start the iptables service upon system boot.
5. Disable the iptables function.
6. Use the command sudo systemctl stop iptables to halt the iptables service.
7. Enter the command “sudo systemctl disable iptables” to prevent the iptables service from starting automatically at system boot.

Please note that the above operation may require root privileges. If the current user does not have sufficient permissions, you can use the sudo command to temporarily obtain root privileges.