How to check the status of iptables in Linux?

To check the status of iptables in Linux, you can use the following command:

sudo iptables -L -n

This will display a list of current firewall rules. The option “-L” indicates listing the rules, “-n” shows IP addresses and port numbers in numerical form instead of resolving to domain names and service names. Using the sudo command is necessary because the iptables command requires root permissions to run.