Best Zero Trust Security 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.

Check Point SASE is a cloud-delivered Secure Access Service Edge (SASE) platform that combines networking and cybersecurity capabilities into a unified solution for modern enterprises and hybrid work environments. The platform integrates Zero Trust Network Access (ZTNA), Secure Web Gateway (SWG), Cloud Access Security Broker (CASB), SD-WAN, and secure internet access to protect users, devices, applications, and data from a centralized system. Built on a global private backbone network, Check Point SASE helps organizations provide secure, low-latency connectivity for remote employees, branch offices, and distributed workforces. The platform simplifies deployment and management by consolidating networking and security operations into a single interface, reducing complexity and administrative overhead.

GoodAccess is a cybersecurity platform (SASE/SSE) that empowers medium-sized enterprises to easily implement Zero Trust Architecture (ZTA) in their infrastructure, regardless of its complexity or scale. By leveraging a Low-Code/No-Code approach, GoodAccess delivers a hardware-free, rapid deployment solution within hours or days, allowing companies to enhance their security without the need for in-house IT experts. Our platform ensures seamless integration with modern SaaS/cloud applications as well as legacy systems, protecting critical assets for remote and hybrid workforces. GoodAccess serves businesses with 50-5000 employees across diverse industries, particularly those adopting multi-cloud and SaaS environments. Start your 14-day full-featured free trial.

OpenVPN Access Server is a self-hosted Zero Trust Network Access (ZTNA) and business VPN solution that gives organizations full control over their own secure network. It's software organizations deploy directly into their own environment — on-premises hardware or their own cloud account on AWS, Azure, Google Cloud, or others — with tunnel traffic flowing directly between users and the server. With Access Server Link, teams can go from zero to a fully configured deployment in minutes: point-and-click setup across AWS, Azure, and GCP, automatic SSL certificate provisioning and renewal, and a web-based admin portal for managing users, certificates, and access — no SSH or manual DNS work required. Access is granted per application and per identity using domain names rather than broad network-level access, so users only reach what they're explicitly permitted to, and lateral movement is structurally blocked.

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.

Fortinet is a global leader in cybersecurity solutions, known for its comprehensive and integrated approach to safeguarding digital networks, devices, and applications. Founded in 2000, Fortinet provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. At the core of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly integrates security tools to deliver visibility, automation, and real-time threat intelligence across the entire network. Trusted by businesses, governments, and service providers worldwide, Fortinet emphasizes innovation, scalability, and performance, ensuring robust defense against evolving cyber threats while supporting digital transformation and business continuity.

InstaSafe is redefining the challenge of secure access to modern networks by leveraging Zero Trust principles with its security solutions, that ensure seamless access to cloud applications, SAP applications, on-premise data, IoT devices, and multiple other neoteric use cases. InstaSafe discards traditional VPN based conceptions of a network perimeter, instead moving the perimeter to the individual users and the devices they access. The Zero Trust approach followed by InstaSafe mandates a “never trust, always verify' approach to privileged access, without focusing on network locality. InstaSafe ZTAA relies on continuously assessing the trust and risk associated with every user, and the context of their access request, and simultaneously employs a system of comprehensive authentication before grnating least privilege access. By only making authorised applications accessible to the user, and not exposing the network to these users, ZTAA serves to negate the exploitable attacks surface

NetBird is an open-source Zero Trust Networking platform built by engineers for engineers. It radically simplifies deploying secure private networks using the high-performance WireGuard® protocol. Unlike traditional VPNs, NetBird creates decentralized, low-latency, high-throughput private networks with a single management console for identity-based access control. Integrating seamlessly with your IdP for SSO and MFA, it forms direct, encrypted peer-to-peer tunnels between devices, servers, and clouds - no central bottlenecks or single points of failure. Lightweight clients ensure scalability and privacy, with traffic never passing through management services. NetBird supports integrations with CrowdStrike, Intune, SentinelOne, pfSense, and more. Ideal for Zero Trust remote access, multi-cloud connectivity, dynamic posture checks, detailed auditing, and MSP multi-tenant management - all through one intuitive platform.

CloudLAN is a secure virtual office for a distributed teams. CloudLAN helps bring all the user computers into a single virtual network & accessible to each other through private IP's from anywhere. TeamVPN IP gives a roaming Static IP that is no longer tied to a physical locations internet connection. Addon features like service casting & Host connect makes remote work accessible to even companies without inhouse technical team.

The way we work has changed. People now work from anywhere, not just from an office. Applications are based in the cloud, not just on-premise. And the company network perimeter is now spread across the internet. Using a traditional, network-centric VPN for remote access is not only outdated and difficult to maintain, but exposes businesses to security breaches. VPN infrastructure is costly and time-consuming to procure, deploy, and maintain. Inability to secure access at the app level means hacks can expose whole networks. Twingate enables organizations to rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs. Delivered as a cloud-based service, Twingate empowers IT teams to easily configure a software-defined perimeter without changing infrastructure, and centrally manage user access to internal apps, whether they are on-prem or in the cloud.

Shieldoo is a next-gen private network for remote connection from anywhere built with a well-known open-source tool called Nebula. The Shieldoo secure network is a collection of nodes, a lighthouse, and an admin center. The user device is a node, the server is a node, the cloud stack is a node, and the LAN access box is a node. Two nodes discover each other through a lighthouse and then connect peer-to-peer. With Shieldoo, you can build a complex security infrastructure which is easy to use. A tailored wizard will guide you through the initial setup, and the usual administration is handled in the admin center. You pay only for users and servers seen in the network that month, and you always get the complete feature set: unlimited admin accounts, SSO, MFA, domain by your choice etc.

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

MicroZAccess is a Smart Zero Trust Network Access (ZTNA) client in Desktop which securely authenticates the user and seamlessly connects the device to the Cloud through reliable, high performance and encrypted tunnels. Highlights: Peer to Peer Overlay model for improved privacy and performance Flexible Deployment - Host/Workload Agent & Gateway approach Integrated Device Trust and Superior Identity MFA based Access Super Simple to Deploy and Manage Platform approach for Comprehensive Security - Support in SD-WAN and SASE Stateful device compliance checks before, and during, a connection Granular policy enforcement

Remote workforce, BYOD assets, and third-party access have created a new security dilemma for organizations. Relying solely upon a VPN as security for remote workers and third-party access is insufficient to protect the network. While VPNs provide a degree of protection through encrypting inbound traffic, their security failure comes through providing full network access to users with no privileged access demarcation. RevBits ZTN encrypts, authenticates, and securely connects external users, over SSL/TSL, to internal network assets and applications to which they have specific access without granting full network access. Moving the network perimeter to the endpoint RevBits Zero Trust Network (ZTN) helps isolate and protect your internal assets. As the network perimeter moves to where the user is, RevBits Zero Trust Network (ZTN) helps isolate and protect internal network assets without the necessity of implementing complicated network segmentation.

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.