Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

LearnKartS
Skills you'll gain: Incident Response, Vulnerability Management, Cybersecurity, Computer Security Incident Management, Cyber Threat Intelligence, Security Controls, Threat Management, Business Risk Management, Cyber Attacks, Cyber Operations, Threat Detection, Cloud Security, Risk Management, Cyber Governance, Security Strategy, Security Awareness, Vulnerability, Governance Risk Management and Compliance, Vulnerability Scanning, Vulnerability Assessments
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Malware Protection, Endpoint Security, Mobile Security, Cloud Security, Application Security, Cloud Computing, Threat Detection, Cybersecurity, Information Systems Security, Virtualization, Virtual Machines, Intrusion Detection and Prevention, Encryption
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Role-Based Access Control (RBAC), Authorization (Computing), Identity and Access Management, AWS Identity and Access Management (IAM), Geographic Information Systems, Geospatial Information and Technology, Encryption, Data Security, Network Security, Public Key Infrastructure, Wireless Networks, Extensible Markup Language (XML)
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Risk Management Framework, Infrastructure Security, Cyber Attacks, Cyber Risk, Cyber Security Policies, Public Safety and National Security, Cyber Security Assessment, Cyber Operations, Cyber Governance, Security Management, NIST 800-53, Incident Response, Security Strategy, Technology Roadmaps, Network Infrastructure, Technology Solutions, Transportation Operations, Legal Risk
Beginner · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Data Security, System Design and Implementation, Data Ethics, Cybersecurity, Safety and Security, Information Technology, Information Privacy, Computer Literacy, Software Development Tools, Data Sharing, Technology Strategies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Security Assessment, Security Testing, Vulnerability Assessments, Penetration Testing, Vulnerability Scanning, Threat Modeling, Vulnerability Management, Application Security, Security Strategy, Security Controls, Security Requirements Analysis, Data Security, Security Information and Event Management (SIEM)
Intermediate · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Intrusion Detection and Prevention, Security Controls, Incident Response, Vulnerability Assessments, Software Development Life Cycle, Cybersecurity, Cyber Security Assessment, Threat Detection, Information Assurance, Network Security, Risk Management Framework, Cloud Security, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OSI Models, TCP/IP, Network Protocols, Linux, Dynamic Host Configuration Protocol (DHCP), Network Analysis, Linux Administration, Virtual Machines, General Networking, Virtualization and Virtual Machines, System Configuration, Computer Networking, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Incident Response, Network Security, Vulnerability Scanning, Computer Security Incident Management, Security Management, Penetration Testing, Cybersecurity, Authentications, Vulnerability Assessments, Encryption, Firewall, Identity and Access Management, Hardening, Threat Detection, Disaster Recovery, Public Key Infrastructure, Mobile Security, Risk Management Framework, Risk Management
Beginner · Course · 1 - 3 Months

Royal Holloway, University of London
Skills you'll gain: Computer Security Incident Management, Cyber Governance, Incident Management, Incident Response, Security Management, Cyber Security Strategy, Cyber Security Policies, Human Factors (Security), Security Awareness, Cybersecurity, ISO/IEC 27001, Cyber Risk, Security Strategy, Risk Management Framework, Human Factors
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Encryption, OSI Models, IT Security Architecture, Network Performance Management, Network Architecture, Computer Networking, Network Monitoring, Remote Access Systems, TCP/IP, Network Infrastructure, Network Troubleshooting, Network Protocols, Infrastructure Security, Wireless Networks, Virtual Private Networks (VPN), Endpoint Security, Cloud Security, Routing Protocols, Software-Defined Networking
Intermediate · Course · 1 - 4 Weeks
Microsoft
Skills you'll gain: Prompt Engineering, Microsoft Copilot, Security Information and Event Management (SIEM), Cyber Threat Hunting, Security Software, Microsoft Azure, Security Controls, Cyber Security Assessment, Incident Response, Generative AI, Artificial Intelligence, Query Languages
Intermediate · Course · 1 - 3 Months