The command “iptables -t filter -L” is used to list the current firewall rules in the “filter” table of the “iptables” utility. “iptables” is a command-line tool used for managing firewall rules in Linux systems.
When you run the command “iptables -t filter -L”, it will display a list of rules configured in the “filter” table, which is responsible for filtering network packets. These rules determine how the system handles incoming and outgoing network traffic based on various criteria such as source IP address, destination IP address, port numbers, and protocols.
The output of the command will show the chain name, target, and matching criteria for each rule defined in the “filter” table.
Please note that to view the firewall rules using the “iptables” command, you might need administrative or root privileges.