- Coursera: Network Security & Database Vulnerabilities (Free/Paid) - This course covers core principles of network security, network vulnerabilities, and countermeasures.
- Cybrary: Network Security Fundamentals - Free video-based training on network security basics, threat modeling, and various network attack methods.
- Udemy: The Complete Cyber Security Course - Network Security (Paid) - Comprehensive course on network security, including encryption, VPNs, firewalls, and malware protection.
- edX: Network Security (Paid) - A full course that covers network security principles, including firewalls, intrusion detection, and more.
- TryHackMe
- HackTheBox
- Cisco Networking Academy Labs (Free) - Free labs covering network security principles, firewall configurations, and intrusion prevention systems.
- Pentester Academy (Paid) - A paid service offering network labs focused on penetration testing, network security analysis, and malware forensics.
- nmap
- wireshark
- openVAS
- snort
- netcat
- metasploit
- kismet
- ettercap
- Nessus
- aircrack-ng
- openssl
- Nagios
- SSCP by ISC2
- Network+ by CompTIA
- EC-Council Certified Network Defender
- OSCP
- Cisco Certified CyberOps Associate
- CCNP-Security