CompTIA CYSA+ CS0-002 – Vulnerability Scanning Part 1
1. Identifying Vulnerabilities (OBJ 1.3) Identifying vulnerabilities. In this lesson, we’re going to talk about the importance of identifying vulnerabilities. And the way we do this is through a vulnerability assessment. Now, it is really important to identify vulnerabilities so that you can then mitigate those vulnerabilities. Remember, every vulnerability in your system represents a… Read More »
CompTIA CYSA+ CS0-002 – Mitigating Vulnerabilities Part 2
4. Hardening and Patching (OBJ 1.3) Hardening and patching. In this lesson we’re going to talk about two key terms. And I know I’ve used these words before, but we’ve never really defined them. These are hardening and patching. Now, when I talk about system hardening, this is the process by which a host or… Read More »
CompTIA CYSA+ CS0-002 – Mitigating Vulnerabilities Part 1
1. Mitigating Vulnerabilities (Introduction) In this section of the course, we’re going to cover how to analyze output from vulnerability scanners. We’re going to stay in domain one in this section of the course, but we are going to cover multiple objectives this time, including objective 1213 and one four. Now, objective one two states… Read More »
CompTIA CYSA+ CS0-002 – Detection and Containment Part 2
5. Impact Analysis (OBJ 3.1) Impact analysis. When we talk about impact analysis, this is a really important concept as part of our triage function. Now, when we talk about triage, really what we’re focused on is how do you look at an event and decide how severe it is and how much priority you… Read More »
CompTIA CYSA+ CS0-002 – Detection and Containment Part 1
1. Detection and Containment (Introduction) In this section of the course, we’re going to continue our discussion of incident responses by focusing on two phases the detection and analysis phase and the containment phase. We’re going to be covering domain three and domains four in this section of the course, specifically focusing on objectives 4.… Read More »
CompTIA CYSA+ CS0-002 – Analyzing Output from Vulnerability Scanners Part 3
6. OpenVAS and Qualys (OBJ 1.4) Openvoss and qualis. In the last lesson we talked about Nessus, which is a commercially available scanner. In this lesson, I want to talk about two more OpenVAS and Qualis. Now, Nessus began its life as an open source software project, which means it was available for anybody to… Read More »
CompTIA CYSA+ CS0-002 – Analyzing Output from Vulnerability Scanners Part 2
4. Vulnerability Reports (OBJ 1.3) Vulnerability reports. In this lesson we’re going to dig into those vulnerability reports and understand a little bit more about them. Now before we do that, we have to remember that a vulnerability report that is not validated is essentially useless. If I run the scanning tool and I take… Read More »
CompTIA CYSA+ CS0-002 – Analyzing Output from Vulnerability Scanners Part 1
1. Scan Reports (OBJ 1.4) Scan reports. In this lesson we’re going to start looking at some scan reports from our different vulnerability assessment tools. Now these scan reports are going to contain colorcoded vulnerabilities in terms of their criticality. This allows you to very quickly identify what is the most important things that need… Read More »
Cisco CCNA 200-301 – Wireless Networking Fundamentals Part 4
8. Switch Configuration for Wireless – Lab Demo Lecture. You’ll see how to configure a switch to support wireless networks with wireless LAN controller, with a lab demo. I’m going to use packet tracer for this demo, so you can see that I’ve got it open here. I’ve got my switch here in the middle.… Read More »
Cisco CCNA 200-301 – Wireless Networking Fundamentals Part 3
6. Wireless Channels and Radio Frequencies In this lecture you’ll learn about RF, that’s radio frequencies and channels. WiFi services operate in the two 4 frequency spectrum that’s allocated for ism industrial, scientific and medical use. You’ll see more about what that means in a second. Because of this, a radio operator’s license is not… Read More »
