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: Restful API, Docker (Software), Containerization, Git (Version Control System), Flask (Web Framework), Application Programming Interface (API), Authentications, Application Deployment, Database Management, JSON, Object-Relational Mapping, Continuous Deployment, Python Programming, Object Oriented Programming (OOP), Data Structures
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Package and Software Management, Virtual Environment, Development Environment, Software Installation, Python Programming, Command-Line Interface
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: TCP/IP, Network Routers, Network Routing, Network Security, Network Administration, Network Protocols, Network Troubleshooting, Network Switches
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Relational Databases, MySQL, Data Management, Database Design, Data Warehousing, Data Visualization, Data Visualization Software, Data Security, Dashboard, Tableau Software, Data Cleansing, SQL, Personally Identifiable Information, Microsoft Excel, Data Governance, Data Analysis, Data Transformation
Advanced · Course · 1 - 3 Months

Splunk Inc.
Skills you'll gain: Splunk, Correlation Analysis, Performance Tuning, Data Manipulation, Data Analysis, Data Modeling, Big Data, Transaction Processing, Data Science, Business Analytics, Data Visualization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MLOps (Machine Learning Operations), AWS SageMaker, Amazon Web Services, Scalability, Machine Learning, Technical Design, Amazon Elastic Compute Cloud, Cloud Computing, AWS Identity and Access Management (IAM), Cloud Security, Data Management, Disaster Recovery, Data Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Role-Based Access Control (RBAC), Azure Active Directory, Load Balancing, Cloud Infrastructure, Network Architecture, Authorization (Computing), Database Management, Data Security, Relational Databases, Authentications, Identity and Access Management, Cloud Computing, Cloud Computing Architecture, Disaster Recovery, Data Storage Technologies, Cloud Management, Cloud Security, Single Sign-On (SSO), General Networking
Intermediate · Specialization · 1 - 3 Months

KodeKloud
Skills you'll gain: Jenkins, CI/CD, Continuous Integration, Systems Administration, Command-Line Interface, Devops Tools, Continuous Delivery, Software Development, Continuous Deployment, DevOps, Software Development Tools, Build Tools, Software Configuration Management, Software Installation, Application Deployment, User Accounts, Configuration Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, Network Monitoring, Network Performance Management, Virtual Private Networks (VPN), Open Shortest Path First (OSPF), Network Routing, Network Troubleshooting, Network Security, Border Gateway Protocol, TCP/IP, Network Administration, Multiprotocol Label Switching, Network Infrastructure, Wide Area Networks
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Amazon Web Services, Network Infrastructure, AWS CloudFormation, Network Routing, Amazon Elastic Compute Cloud, Infrastructure as Code (IaC), Network Security, Load Balancing, Automation
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Bash (Scripting Language), Shell Script, Scripting, Unix Shell, Linux Commands, Command-Line Interface, Unix Commands, Business Logic, DevOps
Beginner · Guided Project · Less Than 2 Hours

Pearson
Skills you'll gain: Network Troubleshooting, TCP/IP, Routing Protocols, Network Routing, Open Shortest Path First (OSPF), Network Administration, General Networking, System Configuration, Network Protocols, Microsoft Windows, Linux
Beginner · Course · 1 - 4 Weeks