I’ll show you how to install OPNSense step by step in 2025! Whether you’re setting up a home lab, learning networking, or improving your cybersecurity, OPNSense is a powerful open-source firewall that won’t cost you a dime. I’ll walk you through: ✔️ Downloading OPNSense ✔️ Installing it on a virtual machine ✔️ Basic setup to get it running ✔️ Creating rules in the firewall If you're into networking, security, or IT, this one's for you! Drop a comment if you have questions, and don’t forget to subscribe for more tech tutorials. 0:00 Video summary 0:45 Download & extract the OPNSense ISO-file 3:24 Creating the VM and lab network 9:15 Booting OPNSense and initial configuration in CLI 14:40 Assigning interfaces, IP-adresses and DHCP-server 24:30 Logging into web GUI wizard from Windows 11 VM 29:35 Dashboard, firmware and second LAN-interface 37:00 Adding firewall rule for LAN2-connectivity #OPNSense #Firewall #CyberSecurity #Networking #HomeLab #ITTraining #SysAdmin #Virtualization #TechTutorials