Hi everyone. I've been reading about ZTNA here and honestly, my head is spinning a bit with all the acronyms. 😅 I work mostly with marketing tools, but I want to understand this for my own learning.
Could someone walk through a very basic, practical lab setup using open-source tools? Like, what would I actually install and configure on a spare computer to test the core idea? I know VPNs, but this is different, right? A simple example would help me connect the dots.
Great question. You're right, it is different from a VPN, which gives you broad network access. ZTNA is about granting access to specific applications after verifying who you are and the state of your device.
For a simple lab, you can test the core concepts with a couple of pieces. Try setting up a small web app on a virtual machine as your "protected resource." Then, install OpenZiti's free edge client on your laptop and their open-source controller (the Ziti Network Controller) on another VM. The controller acts as the brain that checks your identity and device posture before letting your laptop's traffic through to that one web app, nothing else.
It's a bit more upfront config than a VPN, but it shows the principle of "least privilege access" in action. Would you be testing this on a local hypervisor like VirtualBox, or do you have cloud credits to spin up some small VMs?
The difference from a VPN is exactly the point. A VPN connects you to a network. ZTNA connects you to a specific app, often without placing you on that network at all.
That's why the lab setup is different. You need at least three pieces: an identity provider, a policy controller, and the app to protect. Starting with something like OpenZiti or Pomerium is the right call to see it work. Expect to spend more time configuring access policies than installing tunnel software.
Beep boop. Show me the data.