Official OPNsense Course: Hands-On Labs for Beginners

Name: Official OPNsense Course: Hands-On Labs for Beginners
Rating: 4.3 (46 reviews)

Mastering OPNsense: Practical Labs & Fundamentals for Beginners

Role Play

Created byMA ICT B.V

Last updated 6/2025

English

What you'll learn

Installing & Configuring OPNsense
Setting Up Firewall Rules & Network Security
NAT, Port Forwarding
1st access to OPNsense
User Management
OPNsense Dashboard view
Reset the OPNsense config
Backup OPNsense config
Use the Wizard to configure OPNsense
Configure Basic OPNsense settings

Course content

5 sections • 18 lectures • 2h 14m total length

What is OPNsense?8:40
Discover OPNsense, a FreeBSD-based open source firewall and routing platform that delivers enterprise-grade security with stateful filtering, IDS/IPS, VPNs, a web GUI, and a modular plugin ecosystem.
Who is the owner and OPNsense and where to read documentation about OPNsense7:40
Unboxing an OPNsense device3:05
Open the officially certified open source OPNsense device box to reveal the DC 750 hardware, its sfp+ ten gigabit and rj45 2.5 gigabit ports, console cable, and power adapter.

Logging in for the first time to OPNsense7:16
OPNsense Dashboard overview3:59
Basic system settings (Hostname, Timezone, Password Change)6:14
Learn to configure basic system settings in open sense, including changing the hostname and timezone. Update the root password, save configurations, and verify login with the new credentials.
Creating new users and groups on OPNsense6:39
Create a junior group with reboot privileges in opnsense, add a user to the group, and verify restricted access by logging in as that user.

Connecting OPNsense to the internet using the Wizard & applying the license11:53
Use the system wizard to connect OPNsense to the internet by configuring DHCP, NAT, and the firewall, then apply the license to enable business features.
Updating OPNsense3:36
Update the OPNsense firmware to the latest version after applying the license, by checking for updates, downloading and installing packages, and rebooting the device to verify the update.
Understanding interfaces (WAN & LAN & DMZ)7:16
Assign a dmz interface on port two, set a static ipv4 address, enable it, and review the overview to adjust the dhcp server range if needed.
Configuring DHCP server on the DMZ interface4:25
Enable the DHCP server on the DMZ interface and configure the subnet, DNS, gateway, and domain name; then test by obtaining an IP from the DMZ pool.

What is NAT?6:55
Learn how NAT translates private LAN IPs to a public IP for internet access, and compare outbound NAT automatic or manual, 1-to-1 NAT, and port forwarding.
Configure Outbound NAT on OPNsense6:28
Configure outbound nat to translate private inside addresses to a single public address. Switch to manual outbound nat for lan and dmz, noting ipsec isakmp considerations.
Simple port forwarding example on OPNsense9:58
Configure port forwarding in OPNsense to expose a web server and a telnet service, using wan nat and nat reflection with associated firewall rules for internal and external access.
Bonus Lecture10:38
Discover how to stay in contact and access more than 72 courses on my network training platform. Explore bundles, annual plans, and books on Amazon while practicing labs.
OPNsense Specialist

Requirements

No prior OPNsense experience required!

Description

Are you looking for a hands-on, structured approach to learning OPNsense, the powerful and flexible open-source firewall and routing platform? Whether you are completely new to OPNsense or have some basic networking knowledge, this beginner-friendly course is designed to help you build a strong foundation through practical, real-world applications. Instead of overwhelming you with theory, this course focuses on interactive labs, allowing you to gain valuable hands-on experience with the platform. You’ll follow a step-by-step learning path that gradually introduces key concepts, ensuring you develop both confidence and competence in managing OPNsense.

You’ll start by learning how to install, configure, and navigate the OPNsense interface, setting up a fully functional lab environment where you can safely test and apply your newfound knowledge. From there, you’ll dive into critical networking and security topics such as firewall rules, NAT, VPN setup, traffic shaping, and security best practices. Each module is structured with clear, real-world use cases to help you understand not just how things work, but why they matter in securing and optimizing network performance.

By the end of the course, you’ll have a solid foundation in OPNsense, enabling you to confidently deploy, configure, and manage firewall solutions for personal, business, or enterprise use. Whether you're an IT professional, network administrator, or security enthusiast, this course will provide you with practical, real-world experience to harness the full power of one of the best open-source firewall solutions available.

Who this course is for:

IT Professionals & System Administrators
Network Engineers & Technicians
Cybersecurity Enthusiasts
Home Lab Users & Tech Hobbyists
Small Business Owners & IT Support Staff

Official OPNsense Course: Hands-On Labs for Beginners

What you'll learn

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Course content

Introduction to OPNsense3 lectures • 19min

Navigating the OPNsense Web Interface4 lectures • 24min

Basic Network Setup4 lectures • 27min

Understanding Firewall Rules (The Basics)3 lectures • 30min

NAT (Port Forwarding for Beginners)5 lectures • 34min

Requirements

Description

Who this course is for: