Authentication
Replace Legacy VPNs and Reverse Proxies
Zero Trust access – without ripping out what already works.
Users work from anywhere, applications run everywhere, and the perimeter VPN that once connected them has become the weakest link. F5 BIG-IP APM has grown into a Zero Trust access platform: an identity-aware proxy that checks user, device and context on every request, federates with Microsoft Entra ID, Okta and Ping, and still integrates with the Kerberos, RADIUS and legacy applications you cannot replace.
JustADC designs and builds access policies that are secure by default and simple to operate.
Microsoft TMG is long gone, but its successors are now the problem: aging SSL VPN appliances with a steady stream of critical vulnerabilities, reverse proxies nobody wants to touch, and vendor gateways that each need their own policies and patches. Consolidating them onto APM shrinks the attack surface and the operational load at the same time.
What we migrate
- Legacy SSL VPN appliances – remote access rebuilt on APM with per-application access instead of full network access, posture checks and MFA, and a path from VPN to Zero Trust proxies.
- Reverse proxies and web publishing – TMG, Web Application Proxy, Apache and NGINX reverse proxies and vendor gateways, consolidated into APM published applications with single sign-on.
- VDI gateways – Citrix and Horizon gateways replaced or fronted by APM, so one policy governs desktop and web access.
- Cloud identity proxies – decisions on where Entra ID Application Proxy or Distributed Cloud fit alongside APM, so each application lands on the right platform.
How we cut over
Application by application: inventory the published applications and VPN use cases, rebuild each on APM in parallel, test with pilot users, then move DNS. Users keep their bookmarks and their habits; the old appliance is decommissioned only when its last application has proven itself.
How we engage
Our Service Delivery Methods
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