CCNA Security Training

  7. Content & Endpoint Security (basic awareness) Less configuration-heavy, more theory. Topics: Email security (spam, phishing) Web filtering Antivirus concepts Endpoint protection Data loss prevention (DLP basics) 👉 Goal: Protect users and applications from threats 📧 Email Security (Spam & Phishing) — 10 Key Points 1. Spam Emails Spam emails are unwanted bulk messages sent for advertising or malicious purposes. They often flood inboxes and reduce productivity. 👉 Example: Fake lottery, ads, unknown promotions. 2. Phishing Emails Phishing is a fraudulent attempt to steal sensitive information like: Passwords OTPs Bank details 👉 They look like real emails from banks or companies. 3. Spoofed Sender Address Attackers often fake the sender email address to look legitimate. Example: support@paypaI.com (fake “I” instead of “l”) 4. Malicious Links Phishing emails contain fake links that: Redirect to fake login pages Steal credentials Ins...

  🔐 CCNA Security Curriculum (Main Modules) 🧩 1. Network Security Fundamentals This is the base of security knowledge. Topics: Security concepts (CIA triad: Confidentiality, Integrity, Availability) Types of attacks: DoS / DDoS Man-in-the-Middle Malware (virus, worm, trojan) Security policies and risk management Network vulnerabilities 👉 Goal: Understand what threats exist and why security is needed 🔑 2. Cryptography & VPNs Very important module. Topics: Encryption concepts (symmetric vs asymmetric) Hashing (MD5, SHA) Public Key Infrastructure (PKI) IPsec fundamentals IKE (Phase 1 & Phase 2) VPN types: Site-to-Site VPN Remote Access VPN (AnyConnect) 👉 Goal: Secure communication over public networks 🔥 3. Cisco ASA Firewall (Very important) Focus on Cisco ASA devices like ASA 5505. Topics: Firewall concepts (stateful inspection) ASA basic configuration NAT on ASA Access Control Lists (ACLs) Modular Policy Fram...