Best Zero Trust Security Software for Linux

ManageEngine Endpoint Central supports a Zero Trust security model by enforcing strict access controls, least-privilege policies, and continuous endpoint verification across every managed device and user in the organization. Endpoint privilege management removes unnecessary local administrator rights and replaces standing privileges with just-in-time, task-specific elevation ensuring users never hold more access than their role requires. Application control enforces a default-deny approach, allowing only trusted, approved applications to execute while blocking everything else by default. Device control restricts unauthorized peripheral and removable media connections, while private access provides secure, identity-based connectivity to internal applications for remote users eliminating implicit trust and ensuring every access request is verified, authorized, and logged across the entire endpoint environment.

Keeper Security is transforming the way people and organizations around the world secure their passwords and passkeys, secrets and confidential information. Keeper’s easy-to-use cybersecurity platform is built on a foundation of zero-trust and zero-knowledge security to protect every user on every device. Keeper’s solution deploys in minutes and seamlessly integrates with any tech stack to prevent breaches, reduce help desk costs and ensure compliance. Trusted by millions of individuals and thousands of organizations globally, Keeper is the leader for best-in-class password and passkey management, secrets management, privileged access, secure remote access and encrypted messaging. Protect what matters at KeeperSecurity.com.

Kitecyber enforces zero trust on your own infrastructure, starting at the device, not at a cloud middlebox your traffic has to hairpin through. One lightweight agent extends least-privilege access to private apps and infrastructure, with full device, user, and network context behind every decision. Built on device trust: access is passwordless and grounded in verified device trust, so there's no credential to phish, with native SSO integration through Okta, Google, and Microsoft. Least-privilege, just-in-time: users get just-in-time authorization to specific subnets, not broad network access, containing lateral movement by design. End-to-end encrypted: connections stay E2E encrypted on your infrastructure, with no decrypt-and-re-encrypt hairpin. Your infrastructure, your keys: deploy SaaS, self-hosted, or BYO-keys, replace legacy VPN, and go live in a day or two with zero-touch provisioning.

Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm uses our high-performance streaming and secure isolation technology to provide web-native Desktop as a Service (DaaS), application streaming, and secure/private web browsing. Kasm is not just a service; it is a highly configurable platform with a robust developer API and devops-enabled workflows that can be customized for your use-case, at any scale. Workspaces can be deployed in the cloud (Public or Private), on-premise (Including Air-Gapped Networks or your Homelab), or in a hybrid configuration.

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.

Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines some of the most advanced threat-hunting technologies: - Next-Gen Antivirus - Privileged Access Management - Application Control - Ransomware Encryption Protection - Patch & Asset Management - Email Security - Remote Desktop - Threat Prevention ( DNS based ) - Threat Hunting & Action Center With 9 modules working together seamlessly under one convenient roof, all within one agent and one platform, Heimdal Endpoint Detection and Response grants you access to all the essential cybersecurity layers your business needs to protect itself against both known and unknown online and insider threats. Our state-of-the-art product empowers you to quickly and effortlessly respond to sophisticated malware with stunning accuracy, protecting your digital assets and your reputation in the process as well.

With over 5000 SAML integrations, experience seamless and secure connections with Cipherise - the platform that offers infinite ways to connect with your employees and customers. By integrating with Cipherise, you can easily build authentication into any app, and offload customer identity management to create delightful experiences quickly. With Cipherise's mutual, bi-directional authentication, you get the security, scalability, reliability, and flexibility to build the stack you need. You will know the person who registered continues to be that person, and they know you are you. Plus, you can protect and enable your employees, contractors, and partners with Cipherise enterprise solutions - no matter where they are. One of the key features, that separate Cipherise from all others - Cipherise eliminates Mass Data Breaches. An attack is limited to one user on one system. Additionally, we store no passwords. Cipherise streamlines your identity and access management needs.

ZeroTier simplifies global networking with a secure network overlay that connects and manages all your resources as if they were on the same LAN. Deployable in minutes from anywhere, our software-defined solution scales effortlessly, whether you’re connecting a handful of devices or an entire global network. With ZeroTier, you can: Establish private global networks for IoT deployments. Simplify networking across physical locations with software-defined solutions. Replace traditional VPNs to provide employees secure access to critical resources. Experience seamless connectivity and robust security with ZeroTier – the smarter way to network globally.

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.

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.

Smallstep is the world’s first Device Identity Platform™, built to ensure that only company-owned devices can access sensitive enterprise resources. It secures Wi-Fi, VPNs, ZTNA, SaaS applications, cloud APIs, and developer infrastructure using hardware-bound credentials. At its core is ACME Device Attestation, a modern standard co-developed with Google that binds identity directly to device hardware. This approach prevents credential theft, phishing, and impersonation by making credentials non-exportable. Smallstep extends Zero Trust beyond users by verifying devices with cryptographic assurance at the silicon level. The platform supports all major operating systems, enabling consistent security across modern, distributed workforces.

XplicitTrust Network Access is a Zero Trust Network Access (ZTNA) solution that provides secure, seamless access to applications regardless of location for users working from anywhere. It provides identity-based access control that integrates with existing identity providers for single sign-on (SSO) and multi-factor authentication (MFA) using factors such as user identity, device security, location and time. The platform includes real-time network diagnostics and centralized asset management for better oversight. Clients require no configuration and the solution is compatible with platforms including Windows, MacOS and Linux. XplicitTrust uses strong encryption, end-to-end protection, automatic key rotation and context-aware authentication to provide robust security. It also supports scalable application access and secure connections for IoT, legacy applications and remote desktops, making it versatile for today's security needs.

The ZTX Platform is a fully managed, engineer-led cybersecurity solution that delivers Zero Trust security in a streamlined, scalable package. It unifies SASE, XDR, SIEM, RMM, and micro-segmentation into a single platform installed and operational within one business day. ZTX is licensed per seat, making it cost-effective and flexible for growing organizations. The platform offers centralized monitoring, real-time threat detection, automated response, and strict policy enforcement. Each user session is isolated via encrypted tunnels, preventing lateral movement and ensuring compliance. Ideal for companies seeking simplified, high-performance cybersecurity without managing multiple tools.

NetFoundry is an identity-first Zero Trust workload connectivity platform designed to secure connections between applications, APIs, machines, AI agents, sites, cloud environments, and operational technology systems. Built on the OpenZiti open source platform, it creates private, policy-controlled connections without relying on traditional inbound ports, VPN tunnels, or IP-based trust. Each workload receives a cryptographic identity, and connections are established only after mutual authentication and identity-based policy authorization. NetFoundry supports use cases including AI security, microsegmentation, site-to-site connectivity, API security, OT and IoT connectivity, and embedded Zero Trust for solution providers. Its outbound-only architecture helps reduce attack surface, limit lateral movement, and simplify connectivity across heterogeneous networks with overlapping address spaces.