Modern IT environments rarely operate from a single location anymore. Infrastructure now spans multiple data centers, edge locations, and, in some cases, public cloud platforms. This distributed model offers great flexibility but also introduces complexity, especially in networking and security.
Keeping applications securely connected and consistently protected across environments is a major challenge for IT teams. Nutanix Flow addresses this challenge by bringing networking and security capabilities directly into the Nutanix platform.
In a recent webinar, we explored how Flow helps organizations simplify networking and security in distributed infrastructure. This article summarizes the key insights.
The challenge of networking and security in hybrid cloud infrastructure
Organizations increasingly run workloads across different environments. Some applications remain in private data centers because of compliance or regulatory requirements. Others may run at edge locations or in cloud platforms.
As infrastructure expands, several challenges surface:
- Networking configurations become fragmented across environments.
- Security policies differ between platforms.
- Workload mobility becomes harder to manage.
- Visibility into traffic and application dependencies decreases.
In many cases, companies end up managing multiple networking and security tools that do not work well together. This fragmentation can create operational overhead and introduce potential security gaps.
Nutanix Flow aims to simplify this by providing integrated networking and security capabilities that work consistently across the Nutanix platform.
Why organizations need a Zero Trust approach to network security
Security models are evolving. Traditional perimeter-based security trusted anything inside the network. In modern environments, this assumption no longer holds.
A Zero Trust approach requires teams to verify and protect every workload, regardless of where it runs. This means security policies should follow the workload itself instead of being tied to a specific network location.
For example:
- When a workload moves between clusters or locations, its security policies move with it.
- Teams control and monitor communication between applications.
- Security controls block unauthorized lateral movement across the infrastructure.
Nutanix Flow helps organizations implement these principles by enabling microsegmentation and policy-based security controls directly within the platform.
In practice, this means IT teams can define which applications or workloads can communicate with each other. Instead of relying on broad network rules, security policies apply at the individual workload level. This reduces the risk of unauthorized access or lateral movement.
What is Nutanix Flow?
Nutanix Flow is part of the Nutanix Cloud Platform and provides two primary capability areas:
Software-defined networking with Flow Virtual Networking
Flow Virtual Networking provides a software-defined networking (SDN) layer for Nutanix environments.
Using overlay networking technologies such as VXLAN and Geneve, Flow enables administrators to create virtual networks independent of the underlying physical infrastructure.
This approach provides several benefits:
- Networks can be created and modified without changing physical network configurations.
- Organizations can deploy workloads across clusters while maintaining consistent networking policies.
- Network segmentation becomes easier to implement.
For organizations operating multiple data centers or distributed infrastructure, this flexibility is essential.
Microsegmentation and policy-based security with Flow Network Security
The second major component of Nutanix Flow focuses on security.
Flow Network Security enables microsegmentation, allowing administrators to define granular security policies between workloads.
Instead of relying on traditional network segmentation (such as VLANs), administrators define security policies based on application requirements. For example:
- Administrators can allow a database server to communicate only with a specific application server.
- They can isolate development environments from production systems.
- They can strictly control traffic between sensitive workloads.
This approach significantly reduces the attack surface and helps prevent lateral movement in case of a security incident.
Integrating Nutanix Flow with existing security platforms
One important aspect of Nutanix Flow is that it does not aim to replace existing security solutions.
Instead, Nutanix positions Flow as an enabler that integrates networking and security with the broader ecosystem.
Companies can continue using their preferred security platforms, such as:
- Palo Alto Networks
- Check Point
- Other third-party security tools
Flow helps connect these tools more effectively with the underlying infrastructure, ensuring that networking and security policies remain aligned.
In this sense, Nutanix acts as a “security plumbing layer,” as some describe it. Nutanix makes sure all components of the infrastructure work together seamlessly.
Enabling secure workload mobility while simplifying network operations
Another key advantage of Nutanix Flow is its support for workload mobility.
As applications evolve, organizations often need to move workloads between environments to scale, modernize, or improve operational flexibility. However, migrating workloads can introduce networking and security challenges.
With Flow, policies are no longer tied to a specific network location. Instead, security policies move with the workload, networking configurations remain consistent, and application dependencies stay visible. This makes it easier to migrate or scale applications without reconfiguring networking and security settings every time.
By integrating networking and security into the Nutanix platform, Flow reduces the number of separate tools organizations must manage. Instead of coordinating multiple networking and security solutions, administrators can manage policies from a single platform.
As a result, organizations benefit from:
- Simplified infrastructure management
- Faster deployment of applications
- Consistent security policies across environments
- Improved visibility into application traffic
- Reduced risk of configuration errors
For IT teams managing hybrid or distributed environments, this integrated approach helps streamline operations while maintaining strong security controls.
Conclusion
As infrastructure evolves, teams can no longer treat networking and security as separate layers managed by different tools.
Organizations need solutions that bring these capabilities closer to the workloads they support.
Nutanix Flow provides a unified approach by combining software-defined networking, microsegmentation, and ecosystem integration within the Nutanix platform.
For organizations looking to simplify infrastructure while strengthening security, this integrated model offers a powerful path forward.