What is a Firewall and Why Do We Need It? | Network Security Basics
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What is a Firewall and Why Do We Need It? | Network Security Basics
A firewall is the first line of defense in your network — but what exactly does it do, and why is it so critical in cybersecurity? In this short video, we explain what a firewall is, how it works, and why every organization and home network needs one — in simple, beginner-friendly terms. For Any Queries please connect on below contact ...
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सागर साळवी on Instagram: "📘 Palo Alto Firewall – Beginner Content 1. Introduction to Palo Alto Firewall Palo Alto Networks is a Next-Generation Firewall (NGFW). Works on Layer 3, Layer 4, and Layer 7. Provides advanced security features like: Application Identification (App-ID) User Identification (User-ID) Content Inspection (Content-ID) Threat Prevention (Antivirus, Anti-Spyware, URL Filtering, IPS/IDS) 2. Firewall Modes L2 Mode (Switching) → Works like a switch, doesn’t route. L3 Mode (Routi
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