The network security landscape is shifting rapidly, with major firewall vendors aggressively deprecating their legacy SSL VPN tunnel modes. Fortinet, for example, has entirely removed SSL VPN tunnel mode starting in FortiOS 7.6.3, forcing organizations to urgently rethink their remote access strategies.
Recently, a French IT integration and security firm approached us with a critical challenge. They were in the process of replacing a deprecated Fortinet SSL VPN portal for an end customer who required secure, remote graphical access to an Ubuntu-based environment. The customer required high performance, stability, and the ability to route access securely through a bastion host.
After deploying ThinLinc, the integrator reported back with a clear verdict: the performance of ThinLinc actually exceeded their old Fortinet SSL VPN setup. It provided the exact secure, responsive access they needed, validating it as their primary remediation strategy for the deprecated firewall technology.
ThinLinc is not a Virtual Private Network (VPN). A traditional VPN connects a remote user's device directly to the corporate network, granting broad network-level access through a public-facing edge gateway. This architectural model is exactly what ransomware operators have been exploiting, leading to the industry-wide phase-out of SSL VPNs.
ThinLinc is a Linux-centric Virtual Desktop Infrastructure (VDI) and remote access platform. Instead of tunneling the user into the network, ThinLinc keeps all data, applications, and compute power centralized safely within the data center or cloud. It solves the problem of secure remote access through a fundamentally different, highly secure architecture:
ThinLinc uses Secure Shell (SSH) as its foundational transport and encryption layer, meaning client-to-server traffic is heavily encrypted by default without exposing vulnerable web portals to the internet.
It integrates natively with Linux PAM, allowing organizations to enforce their existing Multi-Factor Authentication (MFA) policies seamlessly without requiring proprietary web-auth layers.
Unlike passing fragile protocols through a high-latency VPN tunnel, ThinLinc dynamically adapts to network conditions, providing a responsive, bare-metal feel for heavy graphical Linux applications.
If your organization is facing the SSL VPN end-of-life from Fortinet, Cisco, SonicWall, and other major vendors, and relies on Linux GUI environments, replacing your vulnerable edge gateway with a secure, centralized VDI like ThinLinc is the most effective path forward.
