Course 44 - RH Security Specialist | Episode 12: Securing Linux with Nessus and IPTables

Podcast: CyberCode Academy · CyberCode Academy

Opublikowano: 2026-10-02

How can you determine whether a Linux server contains known security weaknesses—and how can you control the network traffic reaching those services?In this episode, we focus on two essential pillars of Linux server defense: proactive vulnerability assessment and active firewall protection.We begin with Nessus, exploring how vulnerability scanners identify operating systems, software versions, exposed services, and known security weaknesses. We then move into the defensive side of the equation with IPTables and the Linux netfilter framework, examining how host-based firewall rules can control network traffic and reduce the system's attack surface.The episode concludes with practical ru...