Red Hat System Administrator: Firewalls

Managing firewall settings is a vital skill for Linux system administrators, especially those preparing for the RHCSA certification. Firewalld provides a dynamic and zone-based approach to controlling network traffic and securing systems. In this course, discover how to manage firewall rules using firewalld and the firewall-cmd utility, list active zones, assign interfaces, and enable/disable access to services and ports. Next, learn how to configure custom zones and rich rules to fine-tune access control. Finally, explore how to back up firewall settings and troubleshoot rule conflicts.This course is part of a series that prepares learners for the Red Hat Certified System Administrator (RHCSA) exam (EX200). In the spirit of exploring the exciting possibilities of generative AI, this course narration was created using AI text-to-speech services.