Iptables is an application that allows system administrators to manipulate the tables used by the Linux kernel firewall. It works with IPv4 and needs elevated privileges to operate, meaning that it must be executed by the user root. This forum is all about Iptables. In case you have any questions related to Iptables, click on “Ask a new question” and post the question. If you have an answer to questions posted by other forum members, click on the “Answer a question” link and answer. Sharing knowledge on this forum with other Iptables users from around the world will hone your skills in using Iptables.