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Over 1600 hours of self research and teamwork - theory and hands-on Practical Cyber Knowledge Networking: OSI and TCP/IP model, communication protocols (DHCP, ARP, DNS, TCP/UDP, etc), Firewall logics, routing, client-server architecture, etc Cryptography and certificates Cyber kill chain, host/network based defense, siem/soc known attacks: DDos, Ransomware, Brute force, MiTM, SQLi, etc Practical exercises in Linux: VPN (Python), Command And Control (C)