From the course: LPIC-2 Linux Engineer (202-450) Cert Prep

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Using iptables as a firewall

Using iptables as a firewall - Linux Tutorial

From the course: LPIC-2 Linux Engineer (202-450) Cert Prep

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Using iptables as a firewall

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- Most Linux firewalls are just using iptables in the background. So let's cut out the middleman and learn how to configure iptables directly. - [Announcer] You are watching ITPRO TV. (upbeat music) - Welcome back. We've got more LPIC-2 more on iptables. And this episode is all about using iptables as a firewall. So what are we going to learn today? - Well, we are going to dive into iptables itself. There's a lot of front ends that are available for iptables that are out there. But if you know how to configure the iptable system itself, you'll be much more ready when you jump onto systems you've never used before. So, really cool thing to do. That's what we're going to look at here. We're going to learn how to write firewall rules to allow traffic, to block traffic. And we'll talk a little bit about the organization of those rules and how they're stored in the iptables configuration. - So let's start with chains and actions. How do they work within iptables? - Alright, so if you've…

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