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.

ISC2
Skills you'll gain: Cryptography, Key Management, Public Key Infrastructure, Encryption, Data Security, Public Key Cryptography Standards (PKCS), Cybersecurity, Authentications, Email Security, Data Integrity, IT Security Architecture, Virtual Private Networks (VPN), Algorithms
Beginner · Course · 1 - 4 Weeks
Johns Hopkins University
Skills you'll gain: Clinical Data Management, Data Quality, Quality Assurance, Data Entry, Clinical Trial Management Systems, Case Report Forms, Clinical Trials, Data Cleansing, Data Management, Data Integrity, Data Collection, Data Sharing, Data Security, Patient Treatment, Continuous Monitoring, Statistical Analysis
Beginner · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: C (Programming Language), Computer Architecture, Embedded Software, Computer Programming, Program Development, Data Structures, Linux, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, NIST 800-53, Security Controls, Disaster Recovery, Authorization (Computing), Risk Analysis, Business Risk Management, Security Management, Continuous Monitoring, Change Control, Cybersecurity, Risk Management, System Monitoring, Security Strategy, Cyber Risk, Vulnerability Assessments, Cyber Security Policies, Vulnerability Management, Configuration Management, Enterprise Security
Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Security Management, Computer Security Incident Management, Personally Identifiable Information, Data Security, Information Assurance, Security Controls, Threat Management, Incident Management, Data Management, Auditing, Continuous Improvement Process, Business Metrics
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: IT Security Architecture, Threat Modeling, Enterprise Architecture, Cybersecurity, Application Security, Threat Management, Network Security, Systems Architecture, Identity and Access Management, Solution Architecture, Endpoint Security, Data Security, Risk Analysis, Remote Access Systems, Case Studies, Risk Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Networking Hardware, OSI Models, Network Architecture, Network Protocols, Network Security, TCP/IP, Computer Networking, Local Area Networks, Virtual Private Networks (VPN), Wireless Networks, Network Routing, Wide Area Networks, Network Switches, Virtual Local Area Network (VLAN), Firewall
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Ansible, Red Hat Enterprise Linux, Package and Software Management, User Accounts, IT Automation, OS Process Management, Linux Administration, Infrastructure as Code (IaC), File Systems, Linux Commands, Network Administration, Data Storage, Automation, Linux, Devops Tools, Scripting, YAML, Configuration Management, Linux Servers, Simulations
Intermediate · Specialization · 1 - 4 Weeks

Microsoft
Skills you'll gain: Role-Based Access Control (RBAC), Azure Active Directory, Microsoft Azure, Cyber Governance, System Monitoring, Identity and Access Management, Cloud Security, Enterprise Security, Data Security, Authorization (Computing), Multi-Factor Authentication, Security Management, User Accounts, Authentications
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Operating Systems, C (Programming Language), Performance Tuning, Virtual Machines, System Programming, Virtualization, Linux
Advanced · Course · 1 - 3 Months

Qualcomm Academy
Skills you'll gain: Wireless Networks, Telecommunications, Emerging Technologies, Internet Of Things, General Networking, Business Transformation, Network Infrastructure, Virtualization
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Cyber Risk, Risk Management Framework, Cybersecurity, Cyber Governance, Cyber Security Strategy, Risk Management, Infrastructure Security, Cyber Security Assessment, Security Controls, Vulnerability Assessments, Stakeholder Communications, Continuous Improvement Process, Asset Management
Mixed · Course · 1 - 3 Months