Respuesta :

Answer:

iptables

Explanation:

On a Linux system, iptables command allows us to modify settings of the built-in packet filtering firewall.

Iptables is used to set up, maintain, inspect and update the tables of IP packet filtering rules on Linux.

For example,

  • To view the current rule settings we can use the command:

# iptables -L -n -v

  • To add new firewall rules:

# iptables -I INPUT <rule number> -s <source-ip address> -j DROP