As a systems administrator managing remote access solutions, you’ve likely relied on VPNs for years to secure your network. However, with the rise of Zero Trust Network Access (ZTNA), many organizations are rethinking their approach to remote connectivity. ZTNA offers a more modern and secure framework for managing access to resources, but transitioning requires careful planning. Here are key considerations for making the switch, based on my experience as a VPN and enterprise mobility expert.
1. Support for All Users
ZTNA solutions must accommodate diverse user groups, including employees, contractors, and third-party partners. Ensure the platform supports both managed devices and BYOD scenarios without compromising security.
2. Compatibility with Resources
Unlike VPNs, which provide broad network access, ZTNA grants granular access to specific applications. Verify that your ZTNA solution integrates seamlessly with legacy systems, on-premises infrastructure, and cloud-based applications.
3. Deployment Simplicity
ZTNA should simplify operations rather than add complexity. Look for solutions that offer straightforward deployment options and avoid disrupting existing workflows during implementation.
4. Performance and Availability
High availability is critical for remote access solutions. Choose a ZTNA provider that guarantees uptime through robust SLAs and leverages a global network for optimal performance.
Performance.
Check the limitations on performance for the user, network, PoPs and data center connectors/gateways. Ask for SLAa on the distance to PoPs and the processing time at the PoP. (These can add more latency than a VPN! Get Guarantees of usable bandwidth and test on lower quality home/hotel networks or use a packet loss tool to emulate remote connections.
5. Enhanced Security
ZTNA can enforces zero trust principles, such as continuous user verification and micro-segmentation. These features reduce the attack surface and mitigate risks associated with lateral movement inside the network.
6. Cost Implications
While ZTNA may involve upfront costs for technology upgrades and training, its long-term benefits should outweigh these expenses by reducing breach risks and improving operational efficiency. Watch for hidden costs and get a three year price guarantee on a per user basis.
7. Legacy System Challenges
Transitioning from VPNs can be challenging if you rely heavily on older systems. Consider hybrid approaches or phased migrations to avoid disruptions. Choose a ZTNA that will connect initially to your VPN gateway.
8. User Experience
Balancing security with usability is crucial. Features like Single Sign-On (SSO) and adaptive Multi-Factor Authentication (MFA) can streamline access while maintaining stringent security controls.
9. Vendor Lock-In Risks
Avoid proprietary solutions that limit interoperability with other platforms. Opt for ZTNA solutions that integrate well with your existing ecosystem.
10. Scalability
ZTNA should grow alongside your organization’s needs, supporting distributed environments and increasing user demands without compromising performance or security.
Switching to ZTNA is not just about adopting new technology—it’s about embracing a more secure and efficient way of managing remote access in today’s threat landscape. By addressing these considerations thoughtfully, you can ensure a smooth transition that enhances security while maintaining productivity across your organization.
