Defensive Cybersecurity: How to Stay Invisible to Malicious Traffic. скачать в хорошем качестве

Defensive Cybersecurity: How to Stay Invisible to Malicious Traffic.

Stop network reconnaissance before it starts. In this defensive cybersecurity tutorial, we dive deep into the Ping (ICMP) command—not just as a connectivity tool, but as a potential vulnerability. Attackers use "ping sweeps" to map out active systems on a network. If they find you, they target you. I’ll show you exactly how to configure your firewall to drop incoming packets from a specific attacker (Ubuntu) while maintaining seamless access for your trusted environments, including Windows 7, Metasploitable 2, and Kali Linux. 🔍 What You’ll Learn: The Risks of ICMP: Why "ping-positive" systems are the first targets in a breach. Targeted Blocking: Using iptables or ufw to blacklist a specific malicious IP or OS (Ubuntu). Whitelisting Essentials: How to ensure your authorized security tools (Kali) and legacy systems (Win7) remain connected. Verification: Testing the defense to ensure the attacker is "blind" while the network remains functional. #CyberSecurity#NetworkSecurity#BlueTeam#EthicalHacking#Firewall #cybersecurityornothing