
Packt
Skills you'll gain: Microsoft Servers, Network Infrastructure, Network Protocols, Performance Tuning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Metasploit, Penetration Testing, Exploitation techniques, Brute-force attacks, Cyber Security Assessment, Intrusion Detection and Prevention, Network Security, Remote Access Systems, Network Protocols, Command-Line Interface, Network Analysis
Mixed · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Public Key Infrastructure, Public Key Cryptography Standards (PKCS), Key Management, Cryptography, Encryption, Authentications, Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Wireless Networks, Network Performance Management, Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Ansible, Network Administration, Firewall, Software-Defined Networking, Network Planning And Design, Network Infrastructure, Network Protocols, Infrastructure as Code (IaC), Terraform, Configuration Management, Encryption
Advanced · Course · 3 - 6 Months

Skills you'll gain: Exploitation techniques, Penetration Testing, Open Web Application Security Project (OWASP), Proxy Servers, Security Testing, Vulnerability Assessments, Web Servers
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Computer Security Incident Management, Endpoint Security, Incident Management, Incident Response, ISO/IEC 27001, Security Management, Vulnerability Scanning, Digital Forensics, Risk Management, Personally Identifiable Information, Linux, Linux Administration, Infrastructure Security, Network Security, Threat Management, Event Monitoring, Enterprise Risk Management (ERM), Business Risk Management, Security Information and Event Management (SIEM), Security Strategy
Beginner · Specialization · 1 - 3 Months