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.

PepsiCo
Skills you'll gain: Water Sustainability, Water Resource Management, Water Resources, Hydrology, Water Quality, Stormwater Management, Corporate Sustainability, Stakeholder Engagement, Natural Resource Management, Environment and Resource Management, Supply Chain Management, Economic Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Cyber Attacks, Data Security, Computer Security Awareness Training, Authentications, Authorization (Computing), Application Security, Security Controls, Personally Identifiable Information, Security Awareness, Identity and Access Management, Information Privacy, Cryptography, Malware Protection, Hardening, Encryption, Vulnerability Assessments, Multi-Factor Authentication, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hardening, Performance Tuning, Unix Commands, Unix, Ubuntu, Operating System Administration, Unix Shell, Debugging, Service Management, User Accounts, OS Process Management, Data Storage, Scripting
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Security Controls, Security Awareness, Change Control, Cybersecurity, Security Management, Data Security, Safety and Security, Cyber Security Policies, Configuration Management, Data Ethics, Data Integrity, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Threat Modeling, Security Testing, Security Engineering, Cybersecurity, Data Security, Blockchain, Threat Detection, Cryptography, Network Security, Security Strategy, Exploit development, Vulnerability Assessments, Transaction Processing, Regulation and Legal Compliance
Advanced · Course · 1 - 3 Months

Skills you'll gain: Threat Modeling, Vulnerability Assessments, Blockchain, Application Security, Cryptographic Protocols, Computer Security, Security Testing, Security Engineering, Network Security, Data Security, Infrastructure Security, Cryptography, Malware Protection, Scripting, Transaction Processing, Secure Coding, Network Protocols, Key Management, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ubuntu, Package and Software Management, Bash (Scripting Language), Linux Servers, Linux Administration, Unix, Linux, Shell Script, Unix Shell, Server Administration, Operating System Administration, Linux Commands, Systems Administration, User Accounts, Servers, System Monitoring, User Provisioning, Command-Line Interface, Software Installation, Computer Security
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Intrusion Detection and Prevention, Role-Based Access Control (RBAC), AWS Identity and Access Management (IAM), Amazon Web Services, Amazon Elastic Compute Cloud, Cloud Computing, Malware Protection, Cloud Security, Load Balancing, Security Engineering, User Accounts, Authorization (Computing), Network Security, Identity and Access Management, Threat Detection, Threat Modeling, Information Systems Security, Cybersecurity, Geographic Information Systems
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Continuous Monitoring, Business Continuity, Security Management, ISO/IEC 27001, Security Controls, Threat Management, Risk Management, Risk Analysis, Security Strategy, Business Risk Management, Cyber Risk, Regulation and Legal Compliance, Cyber Governance, Threat Modeling, Governance Risk Management and Compliance, Cyber Security Strategy, NIST 800-53, Cybersecurity, Compliance Management, Risk Mitigation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OSI Models, Network Security, Security Controls, General Networking, Wireless Networks, Network Protocols, Firewall, Network Administration, TCP/IP, Telecommunications, Proxy Servers, Network Infrastructure, Intrusion Detection and Prevention, Remote Access Systems
Beginner · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Infrastructure Security, Cyber Security Strategy, Mobile Security, Enterprise Security, Cyber Risk, Cyber Security Policies, Cybersecurity, Cloud Security, NIST 800-53, Hybrid Cloud Computing, Security Controls, Risk Management Framework, Blockchain, Internet Of Things, Cryptography, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Malware Protection, Endpoint Security, Mobile Security, Cloud Security, Application Security, Cloud Computing, Threat Detection, Cybersecurity, Information Systems Security, Virtualization, Virtual Machines, Intrusion Detection and Prevention, Encryption
Beginner · Course · 1 - 4 Weeks