Implementing and configuring FirewallD in Red Hat environments

Speakers:

Antonio Bayonas, IT Technical Consultant at PUE

Description:

Red Hat has been promoting the corporate and educational use of Open Source solutions in the world for more than two decades. It is the world leader in the implementation of open source technology in industry and society.

In this practical session, we present one of the novelties of RHEL 7 and Centos 7, the new configuration interface of iptables: firewallD. The firewallD service allows to manage in a less complex way the iptables rules, both for IPv4 and IPv6, protecting in a more robust way our Linux environments.

Netfilter management using firewalld takes a new dimension, based on the definition of zones and services. Services can have a single port like HTTP, or multiple ports like DNS. In addition, it allows adding kernel modules for the correct filtering, such as the FTP service and the nf_conntrack_ftp module.

In the workshop we will discuss the configuration of firewallD, both from its graphical interface, firewall-config, and from the command line, firewall-cmd. For this, we will use a virtualized environment based on KVM with several Red Hat instances, creating a small network that allows us to see in detail how each of the rules affects the traffic between them.

This activity is part of the Red Hat Academy (RHA) initiative. Red Hat has designed the RHA program with the aim of bringing educational institutions closer to the possibility of training their students in an official and recognized way in Linux, JBoss and Openstack technologies with more demand from companies.

From a practical perspective, based on cases of use of thousands of business implementations, students of RHA centers will be able to acquire the knowledge that is demanded from the corporate world through the teaching resources available to their centers: curricula, exercises, laboratories, etc.

PUE is the Red Hat partner for the exclusive management of its Red Hat Academy initiative in Spain.

More information:
www.pue.es/educacion/red-hat-academy