dti Publishing launches NetEmulator 3.0 Cybersecurity Edition

dti Publishing Corporation has released NetEmulator 3.0, a browser-based network simulation platform with new cybersecurity tools for teaching firewalling, intrusion detection, logging, and vulnerability testing. The update is aimed at helping students practice real network defense tasks without installing heavy local software.

Why it matters: - NetEmulator 3.0 is built to help students learn cybersecurity as observable decisions and outcomes, not just definitions and diagrams. - The browser-based platform can reduce setup friction for schools running online, hybrid, or classroom labs. - The release expands skills-based technical education into network defense, secure configuration, monitoring, and validation.

What happened: - dti Publishing Corporation announced NetEmulator 3.0, calling it the Cybersecurity Edition. - The company said the release adds cybersecurity features to its browser-based network simulation and skills-development platform. - The announcement came on July 11, 2026, from Salt Lake City, Utah. - The release follows the platform’s 2026 Innovation in Education Award from Education Technology Insights. - Tina Rosen, managing editor of Education Technology Insights, said the platform is making technical education more accessible, intuitive, and effective.

The details: - NetEmulator 3.0 adds firewall tools with both stateless and stateful traffic filtering. - Learners can build zone-based rules for internal networks, DMZ segments, and external networks. - The firewall model lets students control traffic by source, destination, protocol, port, and direction. - NetEmulator 3.0 includes Network Address Translation, or NAT, to show how private networks connect externally and how public-facing services can be published securely. - The release adds IDS/IPS features for intrusion detection and prevention. - Students can review alerts, examine logs, and connect suspicious behavior to actual network activity. - Logging tools let learners analyze allowed and denied traffic and verify firewall behavior. - New host firewall features, extended access control lists, and web service on/off controls support defense-in-depth labs. - The platform includes DNS, DHCP, web server and web client tools, a packet generator, Telnet, SSH, Nmap, vulnerability testing, and exploit simulation. - Students can compare insecure Telnet with secure SSH, scan for open ports, generate traffic, and validate security controls. - A new Internet cloud representation helps instructors model untrusted external networks. - The Internet cloud works with firewall zones, NAT, DMZ design, IDS/IPS, logging, Nmap, and exploit testing to support realistic lab scenarios. - The browser-based design avoids the need for large software installs or complex local virtual machines.

Between the lines: - The release pushes cybersecurity instruction toward hands-on proof, where students can see how a misconfiguration changes traffic and exposure. - The combination of attacker-side testing tools and defender-side controls suggests the platform is designed to show both sides of network security. - The product focus appears to be on giving instructors one integrated environment for teaching, assessment, and operational validation.

What's next: - dti Publishing says NetEmulator 3.0 will continue to support practical labs for network defense and secure configuration. - The company is positioning the Cybersecurity Edition for broader use across online, hybrid, and in-person learning settings. - Educators can expect future lab designs to center on monitoring, vulnerability testing, and correcting mistakes through visible outcomes.

The bottom line: - NetEmulator 3.0 turns cybersecurity training into a hands-on simulation of real network behavior, with tools that let students test, observe, and fix security controls in one browser-based platform.