Iptables

With Unix/Linux, iptables is a command used to configure the Linux kernel firewall. It is a powerful utility that allows system administrators to set up and control the network traffic on a Linux server by defining rules and policies for packet filtering. More plainly, iptables is a tool that controls what is allowed in and out of a Linux server.

For example, with iptables, you can allow or block specific network traffic based on criteria like a source or destination IP address, port number, and protocol. Essentially, iptables is used for system security, managing network traffic, and implementing NAT (network address translation).

Command, Configure, Destination, Firewall, IP, Network terms, Source, Tool