Best Network Access Control (NAC) Software for Linux

UTunnel provides Cloud VPN, ZTNA, and Mesh Networking solutions for secure remote access and seamless network connectivity. ACCESS GATEWAY: Our Cloud VPN as a Service offers swift deployment of Cloud or On-Premise VPN servers. It utilizes OpenVPN and IPSec protocols, enables policy-based access control, and lets you deploy a Business VPN network effortlessly. ONE-CLICK ACCESS: A Zero Trust Application Access (ZTAA) solution that simplifies secure access to internal business applications. It allows users to securely access them via web browsers without the need for a client application. MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution based on WireGuard enables granular access controls to business network resources and easy creation of secure mesh networks. SITE-TO-SITE VPN: The Access Gateway solution lets you easily set up secure Site-to-Site tunnels (IPSec) between UTunnel's VPN servers and hardware network gateways, firewalls & UTM systems.

ThreatLocker is a Zero Trust Platform that prevents cyber threats by blocking unknown applications, enforcing least privilege, and controlling what can run across your environment. Using Allowlisting, Ringfencing, Network Control, and more, ThreatLocker stops ransomware, zero-day attacks, and unauthorized activity before execution, rather than relying on detection after the fact. Built for modern IT and cybersecurity teams, the platform delivers centralized visibility and policy management across endpoints, users, and applications. ThreatLocker reduces attack surface, limits lateral movement, and supports compliance with detailed audit logs. With fast deployment, a large built-in application library, and streamlined approvals, organizations can strengthen security while minimizing operational overhead and maintaining business continuity.

With customers across 70+ countries, organizations of all sizes rely on Device42 as the most trusted, advanced, and complete full-stack agentless discovery and dependency mapping platform for Hybrid IT. With access to information that perfectly mirrors the reality of what is on the network, IT teams are able to run their operations more efficiently, solve problems faster, migrate and modernize with ease, and achieve compliance with flying colors. Device42 continuously discovers, maps, and optimizes infrastructure and applications across data centers and cloud, while intelligently grouping workloads by application affinities and other resource formats that provide a clear view of what is connected to the environment at any given time. As part of the Freshworks family, we are committed to, and you should expect us to provide even better solutions and continued support for our global customers and partners, just as we always have.

N‑able N-sight RMM® is a cloud-based IT solution that makes it easy for MSPs to deliver valuable technology services within hours, not weeks or months. Clear graphical dashboards place alerts front and center so you can focus on what needs you most. Built-in remote access and security features help you support and protect from day one. And when you’re ready, grow your business with additional security layers and add-ons services to expand your offering. N‑able N-sight RMM features include remote access, network path visualization, automated monitoring and maintenance, prescriptive data analytics, data-breach risk intelligence, and more. N‑able N-sight RMM is also available for download as Android and iOS mobile apps to allow users to manage issues anywhere.

Portnox CLEAR is the only cloud-native network access control (NAC) solution that unifies essential network and endpoint security capabilities: device discovery, network authentication, access control, network hardware administration, risk mitigation and compliance enforcement. As a cloud service, Portnox CLEAR eliminates the need for on-going maintenance such as upgrades and patches and requires no on-site appliances. As such, the platform can be easily deployed, scaled and managed by lean, resource-constrained IT teams across any corporate network - no matter how complex.

As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and isolate compromised systems, block lateral movement, and automate response across IT, OT, IoT, and IoMT environments. The Forescout Vistaro™ platform, powered by agentic AI and enhanced with Vedere Labs threat intelligence, delivers a Universal Zero Trust Network Access (UZTNA) architecture that integrates seamlessly with 180+ security and IT products. With Forescout Vistaro, organizations get comprehensive inventory and classification of both managed and unmanaged assets, continuous exposure management, and real-time protection including dynamic network segmentation and automated threat response.

S3M Security is a cybersecurity company that focuses on software development and provides value added services in network and information security. Founded by people with more than 20 years of experience in the industry, S3M Security operates in the USA, Europe and EMEA regions. Our team continues to develop new approaches and solutions every day to provide secure environments for organizations against increasing cyber threats and attacks.

Genians delivers a cybersecurity platform that ensures full network surveillance for all connected devices and provides dynamic access control to maintain compliance with IT security policies. It then leverages automation to orchestrate an organization’s entire security portfolio in concert with Device Platform Intelligence, Network Access Control (NAC), and Endpoint Detection and Response (EDR) to achieve an optimally-secure network edge. Genians Network Access Control (NAC) can secure every single connecting point in various networking environments such as VPN, xDSL, and 5G, while ensuring least-privilege access, multifactor authentication (MFA), and micro-segmentation. It can also enhance any enterprise’s Secure Access Service Edge (SASE) architecture. Genians secures millions of various endpoints in organizations of all sizes and industries, including global Fortune 500 companies, the government, the military, energy, finance, healthcare, education, and more.

CruzOC is a scalable multi-vendor network management and IT operations tool for robust yet easy-to-use netops. Key features of CruzOC’s integrated and automated management include performance monitoring, configuration management, and lifecycle management for 1000s of vendors and converging technologies. With CruzOC, administrators have implicit automation to control their data center operations and critical resources, improve network and service quality, accelerate network and service deployments, and lower operating costs. The result is comprehensive and automated problem resolution from a single-pane-of-glass. Cruz Monitoring & Management. NMS, monitoring & analytics -- health, NPM, traffic, log, change. Automation & configuration management -- compliance, security, orchestration, provisioning, patch, update, configuration, access control. Automated deployment -- auto-deploy, ZTP, remote deploy. Deployments available on-premise and from the cloud.

NordLayer is an adaptive network access security solution for modern businesses — from the world’s most trusted cybersecurity brand, Nord Security. We help organizations of all sizes to fulfill scaling and integration challenges when building a modern secure remote access solution within an ever-evolving SASE framework. Quick and easy to integrate with existing infrastructure, hardware-free, and designed with ease of scale in mind, NordLayer meets the varying growth pace and ad-hoc cybersecurity requirements of agile businesses and distributed workforces today

Strengthen your existing ITOM solutions with synergistic Auconet BICS capabilities. Auconet provides next-generation IT operations management and security through its BICS (Business Infrastructure Control Solution), on a single pane of glass. BICS continuously discovers, secures, manages, and centrally controls every network device, port, and endpoint, in complex, heterogeneous IT or SCADA infrastructures with up to a million or more endpoints. Auconet BICS enables global enterprises to seamlessly and efficiently solve today’s issues with mobile device utilization and BYOD, and tomorrow's challenges with Internet of Everything non-traditional endpoints. Designed for the enterprise, and proven by long-term installations, Auconet is trusted by top-tier Global 1000 firms, including BASF, Siemens, and Deutsche Bahn, as well as hundreds of leading financial institutions. Auconet BICS delivers a fresh, efficient approach to control complex networks.

Ivanti offers integrated IT management solutions designed to automate and secure technology across organizations. Their Unified Endpoint Management platform provides intuitive control from a single console to manage any device from any location. Ivanti’s Enterprise Service Management delivers actionable insights to streamline IT operations and improve employee experiences. The company also provides comprehensive network security and exposure management tools to protect assets and prioritize risks effectively. Trusted by over 34,000 customers worldwide, including Conair and City of Seattle, Ivanti supports secure, flexible work environments. Their solutions enable businesses to boost productivity while maintaining strong security and operational visibility.