What is an API? | Northbound & Southbound APIs Explained

🚀 Demystifying the World of APIs: An Overview! 🚀

In the ever-evolving landscape of technology, understanding the backbone of digital communication is crucial. 🌐 Have you ever found yourself pondering over what APIs really are? Or what sets Northbound APIs apart from Southbound APIs? 🤔

Look no further! In my latest video, I unveil the mystique surrounding APIs, providing you with a comprehensive guide through the fundamentals of Application Programming Interfaces (APIs), the critical roles of Northbound and Southbound interfaces, and much more, including NETCONF and RESTCONF. 🛠️💡

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Why so many SDN Solutions? ACI vs DNAC vs Viptela

Have you ever been confused by the variety of SDN solutions available or struggled to understand Cisco's SDN portfolio? 🤔

If so, you're in luck. This video will guide you through the different SDN solutions offered by Cisco, starting with the ACI Solution for the Data Center Networking, followed by the SDA Solution for the Campus/Branch Networking, and concluding with the Viptela SD-WAN Solution for the Wide Area Networking. By the time you are done watching this video, you will have a clear understanding of why such a variety of SDN solutions exist 😎

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Naj Qaziapplication centric infrastructure, cisco aci, cisco sdn, software defined networkingComment
What is IPS? | Traditional IPS vs Next-Gen IPS

Have you ever wondered how you can block malicious traffic in its tracks before it reaches your network endpoints? Wonder no more! 🚫💻

In this video, I delve into the world of IPS, offering a high-level explanation that unveils its significance in fortifying your network defenses. 💡 From understanding the core functions of a traditional IPS to exploring its limitations, I illuminate the pathway towards embracing the next-generation IPS. 🌟

Join me on this journey as I unravel why a conventional IPS might fall short in today's ever-evolving threat landscape and the critical need for a more advanced approach. 🛡️💪 I'll provide valuable insights into what constitutes a next-generation IPS and how it equips your organization with enhanced capabilities to combat sophisticated cyber threats. 🔒🔍

Don't miss out on this opportunity to stay ahead in the cybersecurity game! Watch the video now and empower yourself with the knowledge to safeguard your network infrastructure effectively. 💼💬

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Difference between Firewall and Next Generation Firewall

Do you think you require a next-generation firewall (NGFW)? Do you know what distinguishes a traditional firewall from an NGFW? 🤔

I just dropped a new video on my YouTube Channel, and in this video, I will elaborate on the differences between a traditional firewall and an NGFW. Furthermore, I will highlight the shortcomings of the traditional firewall and how the NGFW tackles those issues 😎

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What is a Firewall: Why do you need it?

Are you concerned about the security of your network? Are there people trying to breach it, either from the outside or within your organization? These are no longer just fictional scenarios; they can have real and significant consequences for your business, finances, and reputation. How can you protect your network infrastructure from these cyber threats? 🤔

If you find yourself worrying about these questions, you've come to the right place. Fortunately, there are ways to protect your network infrastructure from these threats. One of the most effective tools for network security is a firewall. But if you're not familiar with this technology, it can be difficult to understand how it works and how it can be implemented in your organization 👨‍🏫

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What is DHCP Snooping and Dynamic ARP Inspection?

Imagine a scenario where an attacker launches a DDoS (Distributed Denial of Service) attack on your network's Dynamic Host Configuration Protocol (DHCP) infrastructure. At the same time, they poison the Address Resolution Protocol (ARP) entries in your gateway switch, causing significant damage to your entire network. This type of attack could potentially disrupt your network's connectivity, leading to serious consequences such as data loss, service downtime, or even financial losses  🤔

I just dropped a new video on my YouTube Channel, and in this video, you will learn about the effective use of DHCP Snooping and Dynamic ARP Inspection to safeguard your network against DDoS and Man-in-the-Middle (MITM)attacks. The video will guide you through the process of setting up and configuring these security measures, helping you to ensure the safety and reliability of your network infrastructure  😎

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What is Port Security and How to Configure it?

If a hacker walks into your office, they take an Ethernet cable and physically plug it into their laptop. Does that mean you are toast? 🤔

Unfortunately, this is a reality for many organizations today. But this doesn't have to be your fate. I just dropped a new video on my YouTube Channel, and in this video, I show you how to protect yourself against physical infrastructure attacks. I provide a high-level overview of Cisco switch port security, and then I jump directly into the configuration details. All Cybersecurity starts with physical security 😎

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What is AAA Security?

First, I wish you a happy new year. May God make this your most successful year yet filled with peace and happiness.

Second, as cyber threats continue to evolve, AAA in cybersecurity has become more crucial than ever before. In cybersecurity, AAA stands for Authentication, Authorization, and Accounting. It's a security framework that helps control and track user access to a computer network 🔐

I just dropped a new video on my YouTube Channel, and in this video, I provide a high-level overview of AAA. I then walk you through RADIUS and TACACS+, which are both AAA protocols used for network access control. This is all part of Zero Trust Security Architecture 😎

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Cyber Security Defense Techniques (Part 2)

With all these global Cybersecurity threats out there, how do you protect yourself? 🤔

If this thought keeps you up at night, you have come to the right place. In this video, I walk you through various Authentication Mechanisms. I cover topics like Password Policy, Multi-Factor Authentication (MFA), Digital Certificates, and last but not least, Biometric Security. This is all part of Zero Trust Security Architecture 😎

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Cyber Security Defense Techniques (Part 1)

With all these global Cybersecurity threats out there, how do you protect yourself? 🤔

If this thought keeps you up at night, you have come to the right place. In this video, I walk you through various strategies for dealing with Cybersecurity threats. I cover topics like Security Policy, Security Standards, User Awareness and training, and Physical Access Control. Finally, I wrap it up with a concept of Defense-in-Depth. This is all part of Zero Trust Security Architecture 😎

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Naj Qazicybersecurity threats, cyber security basics, cyber security, cybersecurity attacks, types of cyber attacks, cybersecurity for beginners, cybersecurity 101, cybersecurity 101 course, cybersecurity 101 for dummies, zero trust, zero trust security, zero trust security architectureComment
Most Common Security Threats (Part 3)

Did you know how hackers prey on human vulnerabilities to take networks hostage?  🤔

If this thought keeps you up at night, you have come to the right place. I just dropped a new video on my YouTube Channel, and in this video, I cover various attacks related to the human psyche, such as Social Engineering Attacks and Phishing Attacks. I also talk about Brute Force Attacks and Physical Security Attacks. This is the finale in a 3-Part Series, and I saved the best for the last  👨‍🏫

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Naj Qazicybersecurity threats, cyber security basics, cyber security, cybersecurity attacks, types of cyber attacks, cybersecurity for beginners, cybersecurity 101, Social Engineering, Phishing, Brute Force Attack, Dictionary Attack, Physical Security AttackComment
Most Common Security Threats (Part 2)

Have you ever wondered how hackers break into networks?  🤔

If this thought keeps you up at night, you have come to the right place. I just dropped a new video on my YouTube Channel, and in this video, I jump right into various types of attacks, such as Reflection and Amplification Attacks, Man-in-the-Middle (MITM) Attacks, and ARP Poisoning. I then define the anatomy of Malware, describing terms like Virus, Worm, Trojan Horse and Ransomware. This is Part 2 of a 3-Part Series. Stay tuned for the next episode  👨‍🏫

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Most Common Security Threats (Part 1)

What are the most common network security threats? 🤔

I am glad you asked.  I just dropped a new video on my YouTube channel, and in this video, I provide a high-level overview of the cybersecurity threat landscape.  I then walk you through address spoofing attacks, DoS attacks & DDoS attacks.  👨‍🏫

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Overview of Network Security

Do you find Cybersecurity complicated and cryptic?  🤔

No doubt, Cybersecurity is a diverse topic covering many aspects of IT security, but it doesn't have to be difficult.  In this video, I demystify Cybersecurity as it relates to securing networks.  First, I provide a high-level overview of Cybersecurity.  I then get into Cybersecurity terminology, covering terms like Vulnerability, Exploit, Threat and Risk.  All that in about 10 minutes  👨‍🏫

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Wildcard Masks: What Are They And How Do They Work?

Have you ever struggled to understand the concept of a Wildcard Mask?  🤔

If you did, you are in luck. I just dropped a new video on my YouTube channel, and in this video, I explain in detail what a Wildcard Mask is and how it relates to a Subnet Mask - in about 5 minutes  👨‍🏫

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Access Control List Explained

ACL stands for Access Control List. ACL either permits or denies traffic. You can think of an ACL as a traffic cop. It inspects every packet coming in and going out of a network device on a per-interface basis and either permits or denies traffic based on a predefined checklist 🤓

I just dropped a new video on my YouTube channel, and in this video, I explain ACLs at a high level.  I also provide an overview of various types of ACLs.  All in about 5 minutes  👨‍🏫

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What does Network Address Translation (NAT) do?

Did you know at home or on a corporate LAN (Local Area Network), we can only use private IP address space defined in RFC 1918?  How can we communicate over the Internet if we can't use public IP addresses on our LAN devices?  🤔

Well, I am glad you asked.  I just dropped a new video on my YouTube channel, and in this video, I explain how NAT (Network Address Translation) allows private IP address devices on the LAN to communicate over the Internet.  I start with a high-level overview of NAT, then jump into NAT concepts and terminology.  By the time you are done watching this video, you'll have a fairly good understanding of the terms like "Inside Local Address," "Inside Global Address," "Outside Global Address," and "Outside Local Address."  🤓

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Quality of Service (QoS): Sales Engineer Perspective

How do you develop a QoS policy? Where do you start? What are the best practices for implementing QoS in the real world?  🤔

I answer these questions and more in this video:

  1. I show you step-by-step how to develop a QoS policy and implement QoS in the real world.

  2. I provide a high-level overview of QoS tools and techniques.

  3. I bring it all together by showing you a best-practice end-to-end QoS design.

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What is Quality of Service (QoS) in Computer Networks?

Do you know how much one-way network delay can a voice packet handle before your voice gets garbled on the other end? 🤔

The answer is Quality of Service or QoS. In this video, I show you how QoS impacts the way traffic is treated within your network. Real-time traffic such as voice & video is sensitive to delay, jitter & packet loss. To ensure your next Zoom meeting goes well, voice & video traffic must get the highest priority on your network. That's where QoS comes in. By adhering to the best practice Voice & Video QoS SLAs or Service Level Agreements, you can protect the most precious traffic on your network. 🤓

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What is FTP and How it Works?

FTP stands for File Transfer Protocol and TFTP stands for Trivial File Transfer Protocol.  Both FTP and TFTP are application layer protocols.  They operate on the Client/Server model.  These protocols allow a client to connect to a server and transfer files.  FTP uses reliable TCP Ports 20 & 21 and TFTP uses an unreliable UDP Port 69  🤔

I just dropped a new video on my YouTube channel.  In this video, I provide a high-level overview of FTP & TFTP in about 5 minutes  🤓

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