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.

Infosec
Skills you'll gain: Network Analysis, Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Network Monitoring, Anomaly Detection, Network Protocols
Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Microsoft Windows, Data Analysis Software, User Accounts, USB, File Systems, System Configuration, Software Installation, Computer Security Incident Management, File Management, Data Access, Encryption
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Security Management, Risk Management Framework, Incident Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Malware Protection, Data Security, Intrusion Detection and Prevention, Network Security, Cyber Attacks, Event Monitoring, Threat Detection, Cyber Threat Intelligence, Operating System Administration, Computer Security Awareness Training, Network Monitoring, Network Analysis, Operating Systems, Data Integrity, Microsoft Windows, Mac OS, File Systems, Linux, Email Security
Beginner · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Virtual Local Area Network (VLAN), Network Protocols, Network Security, Network Routing, Network Troubleshooting, Network Administration, Computer Networking, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Border Gateway Protocol, Network Performance Management, Firewall, Proxy Servers, Encryption, Authentications
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Secure Coding, Agile Methodology, Security Management, Cyber Security Policies, Cyber Security Assessment, Technical Management, Performance Metric, Risk Management
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Data Ethics, Responsible AI, Emerging Technologies, Business Ethics, Big Data, Information Privacy, Personally Identifiable Information, Diversity Awareness, Data Security, Artificial Intelligence
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Business Risk Management, Risk Management, Cyber Governance, Penetration Testing, Personally Identifiable Information, Information Privacy, Vendor Management, Governance Risk Management and Compliance, Security Management, Cyber Risk, Vulnerability Assessments, Cyber Security Policies, Security Strategy, Compliance Management, Cybersecurity, Regulatory Requirements, Security Controls, Security Awareness
Intermediate · Course · 1 - 4 Weeks

Howard University
Skills you'll gain: Business Software, Information Systems, Business Systems, Business Technologies, Management Information Systems, Information Technology, Enterprise Resource Planning, E-Commerce, Systems Analysis, Computer Hardware, Data Warehousing, Disaster Recovery, Networking Hardware, Business Ethics, Operating Systems, Business Process Management, Customer Relationship Management, Security Management, Business-To-Consumer, Data Security
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: C (Programming Language), Software Documentation, Programming Principles, Computer Programming, Embedded Software, Human Computer Interaction, Debugging, Development Environment, Engineering Calculations
Beginner · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Journalism, Media and Communications, International Relations, Interviewing Skills, Ethical Standards And Conduct, Storytelling, Safety and Security, Content Creation, Writing and Editing, Digital Publishing, Emerging Technologies, Business Modeling
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Vulnerability Management, Penetration Testing, Vulnerability Assessments, Intrusion Detection and Prevention, Security Testing, Network Security, System Testing, Threat Detection, Firewall, Cybersecurity, Cloud Security, Microsoft Azure, Virtual Private Networks (VPN), Windows PowerShell, Command-Line Interface
Beginner · Course · 1 - 4 Weeks