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: Salesforce, Authentications, Salesforce Development, Role-Based Access Control (RBAC), Identity and Access Management, Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Data Sharing, Security Information and Event Management (SIEM), Responsive Web Design, User Accounts, Mobile Development, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Security Assessment, Cybersecurity, Security Testing, Cyber Risk, Vulnerability Management, Incident Response, Network Architecture
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Remote Access Systems, Network Troubleshooting, Network Administration, Virtual Private Networks (VPN), Hardening, TCP/IP, Cybersecurity, Dynamic Host Configuration Protocol (DHCP), Human Factors (Security), Technical Support and Services, Encryption, Command-Line Interface, Authentications, Wireless Networks
Advanced · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Security, System Configuration, Threat Detection, Security Information and Event Management (SIEM), Configuration Management, Google Cloud Platform, Security Management, Vulnerability Scanning, Identity and Access Management, Vulnerability Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Linux Servers, User Accounts, Virtualization, Linux Administration, Lightweight Directory Access Protocols, Group Policy, Server Administration, Performance Tuning, Virtual Machines, Systems Administration, Linux, Network Administration, Network Architecture, System Configuration, Network Security, Security Management, Cybersecurity, Disaster Recovery, Large Language Modeling
Intermediate · Specialization · 1 - 4 Weeks

Infosec
Skills you'll gain: Prompt Engineering, ChatGPT, Open Web Application Security Project (OWASP), Responsible AI, Penetration Testing, Threat Modeling, Cyber Operations, Exploitation techniques, Vulnerability Scanning, Generative AI, Scripting
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsible AI, Large Language Modeling, IT Security Architecture, Data Ethics, Threat Modeling, Vulnerability Assessments, Security Engineering, Threat Detection, Cybersecurity, Information Systems Security, Cyber Security Strategy, Security Strategy, Security Management, Artificial Intelligence, Cyber Attacks, Cloud Security, Security Awareness, Enterprise Security, Distributed Denial-Of-Service (DDoS) Attacks, Incident Response
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PostgreSQL, Data Maintenance, Database Administration, Database Architecture and Administration, SQL, Secure Coding, Database Management, Relational Databases, Query Languages, Security Controls, Data Access, Data Security, Role-Based Access Control (RBAC), Threat Detection
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptographic Protocols, Blockchain, Business Continuity, Disaster Recovery, Digital Assets, Vulnerability Assessments, Regulatory Compliance, Enterprise Security, Data Security, Law, Regulation, and Compliance, Encryption, Cybersecurity, Network Security, Emerging Technologies, Distributed Computing, Transaction Processing
Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Open Web Application Security Project (OWASP), Debugging, DevSecOps, Penetration Testing, Cyber Security Strategy, Security Testing, Application Security, Vulnerability Scanning, Continuous Monitoring, Software Testing, Cybersecurity, Vulnerability Assessments, Threat Modeling, Test Automation, Secure Coding, Technical Communication
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Identity and Access Management, Network Monitoring, Google Cloud Platform, Virtual Private Networks (VPN), General Networking, Network Troubleshooting, Virtual Local Area Network (VLAN), Network Security, Network Architecture, Network Routing, Cloud Computing, Cloud Security, Firewall, Key Management, Load Balancing, Cloud Storage, DevOps, Encryption, Automation
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Responsible AI, Data Ethics, Threat Modeling, LLM Application, Generative AI, Google Gemini, Artificial Intelligence, Cloud Security, Governance Risk Management and Compliance, Cyber Security Strategy, Security Strategy, Artificial Intelligence and Machine Learning (AI/ML), Computer Security Awareness Training, Network Security, Security Management, Cyber Attacks, Cyber Security Policies, Natural Language Processing, Risk Management, Supply Chain
Intermediate · Course · 1 - 3 Months