Certified - CompTIA Network + Audio Course

Cable problems can often look like application issues, but they require a different kind of troubleshooting. In this episode, we review cable specifications like length limits, signal loss, impedance…

Once you’ve confirmed the cause of a network issue, it's time to solve it. This episode covers the final stages of the troubleshooting methodology: establishing a plan of action, implementing the sol…

The foundation of effective troubleshooting is a structured approach. In this episode, we introduce the CompTIA troubleshooting methodology, focusing on the first few steps: identifying the problem, …

In this final domain, we turn our focus to troubleshooting—a skill that ties together everything you’ve learned so far. This episode introduces Domain 5 and outlines the key areas it covers, includin…

Security tools can’t catch every threat—but informed users often can. This episode looks at the balance between technical detection methods and user-driven prevention. We start by examining detection…

While cyber defenses are critical, physical security is just as important. In this episode, we explain how physical access controls protect infrastructure from unauthorized tampering, theft, or sabot…

Wireless networks require layered security controls to keep unauthorized users out and ensure a clean client experience. In this episode, we cover advanced wireless protections including MAC filterin…

Firewalls and access control lists are the gatekeepers of your network, and understanding how to configure them correctly is essential. This episode explains how to structure firewall rules and ACLs …

Securing the network starts with securing its devices. In this episode, we focus on hardening best practices for routers, switches, and firewalls. This includes disabling unused interfaces, enforcing…

Advanced network protection mechanisms focus on securing internal traffic and device behavior. This episode introduces three such features: Dynamic ARP Inspection (DAI), DHCP Snooping, and Control Pl…

Hardening your network means reducing its attack surface and securing its services. In this episode, we look at three high-priority hardening practices: securing SNMP, managing router advertisements,…

Security doesn’t stop at the firewall—physical access and social manipulation play a major role in network compromise. In this episode, we explore phishing in its many forms, including spear phishing…

Some of the most dangerous network threats don’t rely on malware—they rely on deception. In this episode, we explore IP spoofing, a method where attackers forge source IP addresses to disguise their …

Malicious software remains one of the most common and destructive threats to networks and users alike. In this episode, we examine different types of malware, focusing on ransomware, spyware, and tro…

When devices pretend to be something they’re not, serious security problems can follow. This episode focuses on spoofing attacks—specifically ARP spoofing and MAC address spoofing—that allow attacker…

VLANs offer segmentation—but they’re not invulnerable. In this episode, we look at how attackers can bypass VLAN boundaries using VLAN hopping techniques like double-tagging and switch spoofing. You’…

On-path attacks, formerly known as man-in-the-middle attacks, are some of the most dangerous network threats. In this episode, we explain how attackers insert themselves into the communication path b…

Denial-of-Service attacks aim to disrupt services by overwhelming a system’s resources—and understanding how they work is key to protecting against them. This episode covers the types of DoS attacks,…

Every security decision is about balancing risk, and in this episode, we dive into how organizations identify, measure, and manage those risks. You’ll learn the components of a risk management framew…

802.1X is the gatekeeper of modern enterprise networks, ensuring only authenticated users and devices can connect. This episode explains how 802.1X works as a port-based network access control mechan…