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.

Skills you'll gain: Linux, Authentications, Remote Access Systems, Linux Administration, User Accounts, Linux Commands, User Provisioning, Operating System Administration, Authorization (Computing), Identity and Access Management, Security Controls, System Configuration, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Secure Coding, Application Security, Security Testing, DevSecOps, MITRE ATT&CK Framework, Security Requirements Analysis, Authentications, Threat Detection, Software Development Life Cycle, Security Controls, Systems Development Life Cycle, Vulnerability Assessments, DevOps, Cyber Security Assessment, CI/CD, Linux, Cyber Security Strategy, Cyber Risk, Cyber Governance
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Package and Software Management, Linux Administration, Shell Script, Ubuntu, User Accounts, Linux, Devops Tools, Unix Shell, Linux Servers, Linux Commands, Red Hat Enterprise Linux, Bash (Scripting Language), Kubernetes, Command-Line Interface, Network Troubleshooting, Containerization, Ansible, File Systems, Application Deployment, Authentications
★ 4.6 (31) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Operating Systems, File Systems, Linux Commands, Linux, SQL, Linux Administration, Unix Commands, File Management, Unix Shell, Query Languages, Database Management, Command-Line Interface, Relational Databases, Authorization (Computing), Authentications, User Accounts
★ 4.8 (6.2K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: File Management, Linux Administration, File Systems, OS Process Management, Linux, Linux Servers, Data Security, Authorization (Computing), Linux Commands, Data Loss Prevention, Operating System Administration, Continuous Monitoring, Information Systems Security, System Monitoring, Data Storage Technologies, Network Security, Vulnerability Scanning, Data Storage, Encryption, Network Analysis
Intermediate · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Package and Software Management, Command-Line Interface, Linux Commands, Linux, Ubuntu, Linux Administration, File Systems, Linux Servers, Data Storage, Network Troubleshooting, Operating Systems, Red Hat Enterprise Linux, Data Storage Technologies, Remote Access Systems, Operating System Administration, System Support, Software Installation, File Management, Service Management, General Networking
★ 4.5 (20) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Apache, Network Troubleshooting, OSI Models, File Transfer Protocol (FTP), Linux Administration, Linux Servers, TCP/IP, Network Protocols, Linux Commands, Systems Analysis, Linux, Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Analysis, General Networking, Virtual Machines, Web Servers, Network Administration, Computer Networking, Unix Shell
Intermediate · Specialization · 1 - 4 Weeks

Infosec
Skills you'll gain: Linux Administration, Version Control, Linux, Git (Version Control System), Linux Commands, Network Troubleshooting, Unix, Operating System Administration, Bash (Scripting Language), Systems Administration, Scripting, User Provisioning, Shell Script, User Accounts, Software Versioning, System Configuration, Unix Shell, Scripting Languages, Package and Software Management, Network Administration
★ 4.4 (22) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Bash (Scripting Language), Network Monitoring, Cyber Security Assessment, System Configuration, Digital Forensics
★ 4.8 (58) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Ansible, Red Hat Enterprise Linux, Linux Administration, Hardening, Linux Commands, Linux, Linux Servers, Security Controls, Authorization (Computing), Containerization, Computer Security, System Configuration, Identity and Access Management, Context Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Operating System Administration, Cloud Computing, Linux, Linux Commands, Linux Administration, Cloud Computing Architecture, Cloud Security, Operating Systems, Windows Servers, Microsoft Windows, File Systems, Systems Administration, Mac OS, Command-Line Interface, Virtual Machines, Firewall, Virtualization, Knowledge of Apple Software, File Management, User Accounts
★ 4.6 (5.7K) · Beginner · Course · 1 - 3 Months
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, Risk Management Framework, Personally Identifiable Information, Vulnerability Assessments, Linux, Linux Administration, Infrastructure Security, Authorization (Computing), Network Security, Threat Management, Event Monitoring, Security Strategy
★ 4.7 (68) · Beginner · Specialization · 1 - 3 Months