Firewall courses can help you learn network security principles, configuration techniques, threat detection, and incident response strategies. You can build skills in monitoring traffic patterns, implementing access controls, and analyzing security logs. Many courses introduce tools like Cisco ASA, Palo Alto Networks firewalls, and open-source solutions such as pfSense, demonstrating how these tools are used to protect networks from unauthorized access and cyber threats.

Skills you'll gain: Threat Management, Microsoft Azure, Cloud Security, Key Management, Security Controls, Data Structures, Data Access, Query Languages
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Authorization (Computing), Hardening, Data Storage, Data Security, Security Controls, Software Installation, Endpoint Security, Information Systems Security, Data Management, System Configuration, Computer Hardware
★ 4.7 (162) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Operations, Intrusion Detection and Prevention, Cybersecurity, Cyber Attacks, Incident Response, Information Systems Security, Digital Forensics, Network Security, Network Monitoring, Network Analysis, Firewall, Data Integrity
★ 5 (23) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: General Networking, Security Controls, Service Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Mobile Security, Network Security, Cybersecurity, Cryptography, Intrusion Detection and Prevention, Wireless Networks, Encryption, Application Security, Exploitation techniques, Web Applications, Cloud Security, Internet Of Things
★ 4.9 (20) · Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Identity and Access Management, Data Loss Prevention, Distributed Denial-Of-Service (DDoS) Attacks, Prompt Engineering, Kubernetes, Cloud Security, Containerization, OAuth, Cloud Storage, Cloud Services, Application Deployment, Virtual Machines, Virtual Networking, Security Controls, Cloud Computing, Cloud Management, Application Security, Data Security
★ 4.7 (50K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Vulnerability Assessments, Firewall, Exploitation techniques
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Web Servers, Lightweight Directory Access Protocols, Email Security, Linux, Nginx, Apache, Dynamic Host Configuration Protocol (DHCP), Servers, Server Administration, Active Directory, System Configuration, Network Security, Firewall, Authentications, Software Installation
Advanced · Course · 1 - 3 Months

Skills you'll gain: Ubuntu, Package and Software Management, Bash (Scripting Language), Linux Servers, Linux Administration, Linux, Server Administration, Operating System Administration, Scripting, Systems Administration, User Accounts, Servers, System Monitoring, Software Installation, System Configuration, Infrastructure Security, File Management, File Systems
Intermediate · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Cybersecurity, Cyber Attacks, Network Security, Business Continuity Planning, Cryptography, Security Architecture Review, Disaster Recovery, Business Continuity, IT Security Architecture, Telecommunications, Network Administration, Law, Regulation, and Compliance, NIST 800-53, Security Controls, Data Security, Encryption, Regulation and Legal Compliance, Bash (Scripting Language), Systems Administration, Governance Risk Management and Compliance
★ 4.5 (26) · Intermediate · Course · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Public Key Infrastructure, Cryptography, Cryptographic Protocols, Encryption, Authentications, Data Encryption Standard, Advanced Encryption Standard (AES), Key Management, Network Protocols, Email Security, Cybersecurity, Network Security, Security Software, Data Integrity, Multi-Factor Authentication, Firewall
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Order Management, Order Processing, Accounting Software, Customer Relationship Management, Inventory Management System, Customer Relationship Management (CRM) Software, Financial Reporting, Invoicing, Sales, Amazon Web Services, Data Security, Reconciliation, Customer Data Management, Accounting, Estimation, Finance
★ 4.7 (18) · Intermediate · Guided Project · Less Than 2 Hours