Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC and RDP. We call it clientless because no plugins or client software are required.


Gravitational Teleport is described as 'Teleport is an identity-aware, multi-protocol access proxy which understands SSH, HTTPS, RDP, Kubernetes API, MySQL, MongoDB and PostgreSQL wire protocols' and is an app. There are more than 10 alternatives to Gravitational Teleport for a variety of platforms, including Linux, Self-Hosted, Windows, Mac and Docker apps. The best Gravitational Teleport alternative is Apache Guacamole, which is both free and Open Source. Other great apps like Gravitational Teleport are defguard, Twingate, Octelium and Fudo.
Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC and RDP. We call it clientless because no plugins or client software are required.


defguard is an SSO & VPN Server based on OpenID and WireGuard VPN with unique secure & private architecture for building secure and privacy-aware organizations.



Provides secure access through zero trust principles, replacing traditional VPNs for remote work, enabling centralized management, user connectivity, and application-level privilege without infrastructure changes.

A next-gen FOSS self-hosted unified zero trust secure access platform that can operate as a remote access VPN, a ZTNA/BeyondCorp platform, API/AI gateway, a PaaS, and more.
Fudo provides the best protection for remote connections to Unix/Windows servers, databases, or web applications. With the Zero-Trust approach, users only have access to specific applications and accounts for a reason and when they really need it.




BastionZero delivers zero trust access without creating a single point of compromise. It pairs with your IdP to quickly grant access with policy controls and observability — without a mess of passwords, VPNs, and SSH keys.

Warpgate is a smart SSH, HTTPS, MySQL and PostgreSQL bastion host for Linux that doesn't need special client apps.




Bastillion is an open-source web-based SSH console that centrally manages administrative access to systems. It acts as a bastion host for administrators with features that promote infrastructure security.

Highly customizable SSH server with several ways to authorize a user and options where and how to execute a user's session.
Single sign-on for everything your staff needs: databases, servers, Kubernetes, cloud CLIs, intranets, and web apps. Try it Free.


Boundary is a software solution that facilitates access to applications and vital systems through fine-grained authorizations. It operates on an identity-based access model, eliminating the need to manage credentials or expose your network.